commit a018620f03158456169fc9e7eeeac8cb07085554
Author: Peyman <pia.developer@gmail.com>
Date:   Sat Oct 3 18:31:05 2020 +0330

    our first native flutter plugin ;)

diff --git a/.gitignore b/.gitignore
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--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,7 @@
+.DS_Store
+.dart_tool/
+
+.packages
+.pub/
+
+build/
diff --git a/.metadata b/.metadata
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--- /dev/null
+++ b/.metadata
@@ -0,0 +1,10 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: c969b8af7b48bd0f4e3329ed3f112f41136d8bcd
+  channel: master
+
+project_type: plugin
diff --git a/CHANGELOG.md b/CHANGELOG.md
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index 0000000..41cc7d8
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,3 @@
+## 0.0.1
+
+* TODO: Describe initial release.
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..ba75c69
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1 @@
+TODO: Add your license here.
diff --git a/README.md b/README.md
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--- /dev/null
+++ b/README.md
@@ -0,0 +1,8 @@
+# myketpayment
+
+Add myket in app purchase for appeto team
+
+## Getting Started
+
+add following permission to your Androidmanifest.xml
+    <uses-permission android:name="ir.mservices.market.BILLING" />
diff --git a/android/.gitignore b/android/.gitignore
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index 0000000..c6cbe56
--- /dev/null
+++ b/android/.gitignore
@@ -0,0 +1,8 @@
+*.iml
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
diff --git a/android/build.gradle b/android/build.gradle
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--- /dev/null
+++ b/android/build.gradle
@@ -0,0 +1,33 @@
+group 'ir.appeto.myketpayment'
+version '1.0'
+
+buildscript {
+    repositories {
+        google()
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.5.0'
+    }
+}
+
+rootProject.allprojects {
+    repositories {
+        google()
+        jcenter()
+    }
+}
+
+apply plugin: 'com.android.library'
+
+android {
+    compileSdkVersion 28
+
+    defaultConfig {
+        minSdkVersion 16
+    }
+    lintOptions {
+        disable 'InvalidPackage'
+    }
+}
diff --git a/android/gradle.properties b/android/gradle.properties
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--- /dev/null
+++ b/android/gradle.properties
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+org.gradle.jvmargs=-Xmx1536M
+android.enableR8=true
+android.useAndroidX=true
+android.enableJetifier=true
diff --git a/android/gradle/wrapper/gradle-wrapper.properties b/android/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
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--- /dev/null
+++ b/android/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.2-all.zip
diff --git a/android/settings.gradle b/android/settings.gradle
new file mode 100644
index 0000000..4d213a7
--- /dev/null
+++ b/android/settings.gradle
@@ -0,0 +1 @@
+rootProject.name = 'myketpayment'
diff --git a/android/src/main/AndroidManifest.xml b/android/src/main/AndroidManifest.xml
new file mode 100644
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--- /dev/null
+++ b/android/src/main/AndroidManifest.xml
@@ -0,0 +1,4 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+  package="ir.appeto.myketpayment">
+    <uses-permission android:name="ir.mservices.market.BILLING" />
+</manifest>
diff --git a/android/src/main/aidl/com/android/vending/billing/IInAppBillingService.aidl b/android/src/main/aidl/com/android/vending/billing/IInAppBillingService.aidl
new file mode 100644
index 0000000..6d36e89
--- /dev/null
+++ b/android/src/main/aidl/com/android/vending/billing/IInAppBillingService.aidl
@@ -0,0 +1,185 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.vending.billing;
+
+import android.os.Bundle;
+
+/**
+ * InAppBillingService is the service that provides in-app billing version 3 and beyond.
+ * This service provides the following features:
+ * 1. Provides a new API to get details of in-app items published for the app including
+ *    price, type, title and description.
+ * 2. The purchase flow is synchronous and purchase information is available immediately
+ *    after it completes.
+ * 3. Purchase information of in-app purchases is maintained within the Google Play system
+ *    till the purchase is consumed.
+ * 4. An API to consume a purchase of an inapp item. All purchases of one-time
+ *    in-app items are consumable and thereafter can be purchased again.
+ * 5. An API to get current purchases of the user immediately. This will not contain any
+ *    consumed purchases.
+ *
+ * All calls will give a response code with the following possible values
+ * RESULT_OK = 0 - success
+ * RESULT_USER_CANCELED = 1 - user pressed back or canceled a dialog
+ * RESULT_BILLING_UNAVAILABLE = 3 - this billing API version is not supported for the type requested
+ * RESULT_ITEM_UNAVAILABLE = 4 - requested SKU is not available for purchase
+ * RESULT_DEVELOPER_ERROR = 5 - invalid arguments provided to the API
+ * RESULT_ERROR = 6 - Fatal error during the API action
+ * RESULT_ITEM_ALREADY_OWNED = 7 - Failure to purchase since item is already owned
+ * RESULT_ITEM_NOT_OWNED = 8 - Failure to consume since item is not owned
+ */
+interface IInAppBillingService {
+    /**
+     * Checks support for the requested billing API version, package and in-app type.
+     * Minimum API version supported by this interface is 3.
+     * @param apiVersion the billing version which the app is using
+     * @param packageName the package name of the calling app
+     * @param type type of the in-app item being purchased "inapp" for one-time purchases
+     *        and "subs" for subscription.
+     * @return RESULT_OK(0) on success, corresponding result code on failures
+     */
+    int isBillingSupported(int apiVersion, String packageName, String type);
+
+    /**
+     * Provides details of a list of SKUs
+     * Given a list of SKUs of a valid type in the skusBundle, this returns a bundle
+     * with a list JSON strings containing the productId, price, title and description.
+     * This API can be called with a maximum of 20 SKUs.
+     * @param apiVersion billing API version that the Third-party is using
+     * @param packageName the package name of the calling app
+     * @param skusBundle bundle containing a StringArrayList of SKUs with key "ITEM_ID_LIST"
+     * @return Bundle containing the following key-value pairs
+     *         "RESPONSE_CODE" with int value, RESULT_OK(0) if success, other response codes on
+     *              failure as listed above.
+     *         "DETAILS_LIST" with a StringArrayList containing purchase information
+     *              in JSON format similar to:
+     *              '{ "productId" : "exampleSku", "type" : "inapp", "price" : "$5.00",
+     *                 "title : "Example Title", "description" : "This is an example description" }'
+     */
+    Bundle getSkuDetails(int apiVersion, String packageName, String type, in Bundle skusBundle);
+
+    /**
+     * Returns a pending intent to launch the purchase flow for an in-app item by providing a SKU,
+     * the type, a unique purchase token and an optional developer payload.
+     * @param apiVersion billing API version that the app is using
+     * @param packageName package name of the calling app
+     * @param sku the SKU of the in-app item as published in the developer console
+     * @param type the type of the in-app item ("inapp" for one-time purchases
+     *        and "subs" for subscription).
+     * @param developerPayload optional argument to be sent back with the purchase information
+     * @return Bundle containing the following key-value pairs
+     *         "RESPONSE_CODE" with int value, RESULT_OK(0) if success, other response codes on
+     *              failure as listed above.
+     *         "BUY_INTENT" - PendingIntent to start the purchase flow
+     *
+     * The Pending intent should be launched with startIntentSenderForResult. When purchase flow
+     * has completed, the onActivityResult() will give a resultCode of OK or CANCELED.
+     * If the purchase is successful, the result data will contain the following key-value pairs
+     *         "RESPONSE_CODE" with int value, RESULT_OK(0) if success, other response codes on
+     *              failure as listed above.
+     *         "INAPP_PURCHASE_DATA" - String in JSON format similar to
+     *              '{"orderId":"12999763169054705758.1371079406387615",
+     *                "packageName":"com.example.app",
+     *                "productId":"exampleSku",
+     *                "purchaseTime":1345678900000,
+     *                "purchaseToken" : "122333444455555",
+     *                "developerPayload":"example developer payload" }'
+     *         "INAPP_DATA_SIGNATURE" - String containing the signature of the purchase data that
+     *                                  was signed with the private key of the developer
+     *                                  TODO: change this to app-specific keys.
+     */
+    Bundle getBuyIntent(int apiVersion, String packageName, String sku, String type,
+        String developerPayload);
+
+    /**
+     * Returns the current SKUs owned by the user of the type and package name specified along with
+     * purchase information and a signature of the data to be validated.
+     * This will return all SKUs that have been purchased in V3 and managed items purchased using
+     * V1 and V2 that have not been consumed.
+     * @param apiVersion billing API version that the app is using
+     * @param packageName package name of the calling app
+     * @param type the type of the in-app items being requested
+     *        ("inapp" for one-time purchases and "subs" for subscription).
+     * @param continuationToken to be set as null for the first call, if the number of owned
+     *        skus are too many, a continuationToken is returned in the response bundle.
+     *        This method can be called again with the continuation token to get the next set of
+     *        owned skus.
+     * @return Bundle containing the following key-value pairs
+     *         "RESPONSE_CODE" with int value, RESULT_OK(0) if success, other response codes on
+     *              failure as listed above.
+     *         "INAPP_PURCHASE_ITEM_LIST" - StringArrayList containing the list of SKUs
+     *         "INAPP_PURCHASE_DATA_LIST" - StringArrayList containing the purchase information
+     *         "INAPP_DATA_SIGNATURE_LIST"- StringArrayList containing the signatures
+     *                                      of the purchase information
+     *         "INAPP_CONTINUATION_TOKEN" - String containing a continuation token for the
+     *                                      next set of in-app purchases. Only set if the
+     *                                      user has more owned skus than the current list.
+     */
+    Bundle getPurchases(int apiVersion, String packageName, String type, String continuationToken);
+
+    /**
+     * Consume the last purchase of the given SKU. This will result in this item being removed
+     * from all subsequent responses to getPurchases() and allow re-purchase of this item.
+     * @param apiVersion billing API version that the app is using
+     * @param packageName package name of the calling app
+     * @param purchaseToken token in the purchase information JSON that identifies the purchase
+     *        to be consumed
+     * @return 0 if consumption succeeded. Appropriate error values for failures.
+     */
+    int consumePurchase(int apiVersion, String packageName, String purchaseToken);
+
+    /**
+     * Returns an intent to launch the purchase flow for an in-app item by providing a SKU,
+     * the type, a unique purchase token and an optional developer payload.
+     * @param apiVersion billing API version that the app is using
+     * @param packageName package name of the calling app
+     * @param sku the SKU of the in-app item as published in the developer console
+     * @param type the type of the in-app item ("inapp" for one-time purchases
+     *        and "subs" for subscription).
+     * @param developerPayload optional argument to be sent back with the purchase information
+     * @return Bundle containing the following key-value pairs
+     *         "RESPONSE_CODE" with int value, RESULT_OK(0) if success, other response codes on
+     *              failure as listed above.
+     *         "BUY_INTENT" - Intent to start the purchase flow
+     *
+     * The intent should be launched with startActivityForResult. When purchase flow
+     * has completed, the onActivityResult() will give a resultCode of OK or CANCELED.
+     * If the purchase is successful, the result data will contain the following key-value pairs
+     *         "RESPONSE_CODE" with int value, RESULT_OK(0) if success, other response codes on
+     *              failure as listed above.
+     *         "INAPP_PURCHASE_DATA" - String in JSON format similar to
+     *              '{"orderId":"12999763169054705758.1371079406387615",
+     *                "packageName":"com.example.app",
+     *                "productId":"exampleSku",
+     *                "purchaseTime":1345678900000,
+     *                "purchaseToken" : "122333444455555",
+     *                "developerPayload":"example developer payload" }'
+     *         "INAPP_DATA_SIGNATURE" - String containing the signature of the purchase data that
+     *                                  was signed with the private key of the developer
+     *                                  TODO: change this to app-specific keys.
+     */
+    Bundle getBuyIntentV2(int apiVersion, String packageName, String sku, String type,
+        String developerPayload);
+
+    /**
+     * Returns the config of purchase.
+     *
+     * @return Bundle containing the following key-value pair
+     *         "INTENT_V2_SUPPORT" with boolean value
+     */
+    Bundle getPurchaseConfig(int apiVersion);
+}
\ No newline at end of file
diff --git a/android/src/main/java/ir/appeto/myketpayment/MyketpaymentPlugin.java b/android/src/main/java/ir/appeto/myketpayment/MyketpaymentPlugin.java
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index 0000000..8313de0
--- /dev/null
+++ b/android/src/main/java/ir/appeto/myketpayment/MyketpaymentPlugin.java
@@ -0,0 +1,315 @@
+package ir.appeto.myketpayment;
+
+
+import android.app.Activity;
+import android.content.Intent;
+import android.util.Log;
+
+import androidx.annotation.NonNull;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import io.flutter.embedding.engine.plugins.FlutterPlugin;
+import io.flutter.embedding.engine.plugins.activity.ActivityAware;
+import io.flutter.embedding.engine.plugins.activity.ActivityPluginBinding;
+import io.flutter.plugin.common.MethodCall;
+import io.flutter.plugin.common.MethodChannel;
+import io.flutter.plugin.common.MethodChannel.MethodCallHandler;
+import io.flutter.plugin.common.MethodChannel.Result;
+import io.flutter.plugin.common.PluginRegistry;
+import io.flutter.plugin.common.PluginRegistry.Registrar;
+import ir.appeto.myketpayment.util.IabHelper;
+import ir.appeto.myketpayment.util.IabResult;
+import ir.appeto.myketpayment.util.Inventory;
+import ir.appeto.myketpayment.util.Purchase;
+
+/** MyketpaymentPlugin */
+public class MyketpaymentPlugin implements FlutterPlugin, MethodCallHandler, ActivityAware {
+
+  /// The MethodChannel that will the communication between Flutter and native Android
+  ///
+  /// This local reference serves to register the plugin with the Flutter Engine and unregister it
+  /// when the Flutter Engine is detached from the Activity
+  private MethodChannel channel;
+
+  IabHelper mHelper;
+  Result _result;
+
+
+  static Activity _activity;
+  private static final String TAG = "PIA";
+  static final int RC_REQUEST = 10001;
+  public String payload;
+  public String sku;
+  public boolean consume;
+
+
+
+  @Override
+  public void onAttachedToEngine(@NonNull FlutterPluginBinding flutterPluginBinding) {
+    channel = new MethodChannel(flutterPluginBinding.getFlutterEngine().getDartExecutor(), "myketpayment");
+    channel.setMethodCallHandler(this);
+  }
+
+  // This static function is optional and equivalent to onAttachedToEngine. It supports the old
+  // pre-Flutter-1.12 Android projects. You are encouraged to continue supporting
+  // plugin registration via this function while apps migrate to use the new Android APIs
+  // post-flutter-1.12 via https://flutter.dev/go/android-project-migration.
+  //
+  // It is encouraged to share logic between onAttachedToEngine and registerWith to keep
+  // them functionally equivalent. Only one of onAttachedToEngine or registerWith will be called
+  // depending on the user's project. onAttachedToEngine or registerWith must both be defined
+  // in the same class.
+  public static void registerWith(Registrar registrar) {
+    final MethodChannel channel = new MethodChannel(registrar.messenger(), "myketpayment");
+    channel.setMethodCallHandler(new MyketpaymentPlugin());
+  }
+
+  @Override
+  public void onMethodCall(@NonNull MethodCall call, @NonNull Result result) {
+    _result = result;
+    if (call.method.equals("setup")) {
+      setup(call, result);
+    }
+    else if (call.method.equals("buy")) {
+      buy(call, result);
+    }
+    else {
+      result.notImplemented();
+    }
+  }
+
+  public void setup(@NonNull MethodCall call, @NonNull Result result) {
+    Log.d(TAG, call.argument("rsa").toString());
+    // Create the helper, passing it our context and the public key to verify signatures with
+    String base64EncodedPublicKey = call.argument("rsa").toString();
+    Log.d(TAG, "Creating IAB helper.");
+
+    mHelper = new IabHelper(_activity.getApplicationContext(), base64EncodedPublicKey);
+    // enable debug logging (for a production application, you should set this to false).
+    mHelper.enableDebugLogging(false);
+    // Start setup. This is asynchronous and the specified listener
+    // will be called once setup completes.
+    Log.d("PIA", "Starting setup.");
+    mHelper.startSetup(new IabHelper.OnIabSetupFinishedListener() {
+      public void onIabSetupFinished(IabResult mResult) {
+        Log.d(TAG, "Setup finished.");
+
+        if (!mResult.isSuccess()) {
+          // Oh noes, there was a problem.
+          Log.d(TAG, "Problem setting up in-app billing: " + mResult);
+          _result.success(false);
+          return;
+        }
+
+        // Have we been disposed of in the meantime? If so, quit.
+        if (mHelper == null) {
+          _result.success(false);
+          return;
+        }
+
+        // IAB is fully set up. Now, let's get an inventory of stuff we own.
+        Log.d(TAG, "Setup successful. Querying inventory.");
+        mHelper.queryInventoryAsync(mGotInventoryListener);
+
+      }
+    });
+  }
+
+  public void buy(@NonNull MethodCall call, @NonNull Result result) {
+    sku = call.argument("sku").toString();
+    payload = call.argument("payload").toString();
+    consume = call.argument("consume");
+    Log.d(TAG, "consume: " + consume);
+    mHelper.flagEndAsync();
+    mHelper.launchPurchaseFlow(_activity, sku, RC_REQUEST,
+            mPurchaseFinishedListener, payload);
+  }
+
+  // Listener that's called when we finish querying the items and subscriptions we own
+  IabHelper.QueryInventoryFinishedListener mGotInventoryListener = new IabHelper.QueryInventoryFinishedListener() {
+    @Override
+    public void onQueryInventoryFinished(IabResult result, Inventory inventory) {
+      Log.d(TAG, "Query inventory finished.");
+
+      // Have we been disposed of in the meantime? If so, quit.
+      if (mHelper == null) {
+        _result.success(false);
+        return;
+      }
+
+      // Is it a failure?
+      if (result.isFailure()) {
+        Log.d(TAG, "Failed to query inventory: " + result);
+        _result.success(false);
+        return;
+      }
+      Log.d(TAG, "Query inventory was successful.");
+      _result.success(true);
+
+    }
+  };
+
+  // Callback for when a purchase is finished
+  IabHelper.OnIabPurchaseFinishedListener mPurchaseFinishedListener = new IabHelper.OnIabPurchaseFinishedListener() {
+    public void onIabPurchaseFinished(IabResult result, Purchase purchase) {
+      Log.d(TAG, "Purchase finished: " + result + ", purchase: " + purchase);
+
+      // if we were disposed of in the meantime, quit.
+      if (mHelper == null) return;
+
+
+
+      if (result.isFailure()) {
+        Map<String, Object> response = new HashMap<String, Object>();
+        response.put("purchased", false);
+        Log.d(TAG, "Error purchasing: " + result);
+        _result.success(response);
+        return;
+      }
+
+      if (!verifyDeveloperPayload(purchase)) {
+        Log.d(TAG, "Error purchasing. Authenticity verification failed.");
+        return;
+      }
+
+      Log.d(TAG, "Purchase successful.");
+
+
+
+      if(consume) {
+        mHelper.consumeAsync(purchase, mConsumeFinishedListener);
+      }
+      else {
+        returnResponse(purchase);
+      }
+
+      /*if (purchase.getSku().equals(SKU_GAS)) {
+        // bought 1/4 tank of gas. So consume it.
+        Log.d(TAG, "Purchase is gas. Starting gas consumption.");
+        mHelper.consumeAsync(purchase, mConsumeFinishedListener);
+      }
+      else if (purchase.getSku().equals(SKU_PREMIUM)) {
+        // bought the premium upgrade!
+        Log.d(TAG, "Purchase is premium upgrade. Congratulating user.");
+      }
+      else if (purchase.getSku().equals(SKU_INFINITE_GAS)) {
+        // bought the infinite gas subscription
+        Log.d(TAG, "Infinite gas subscription purchased.");
+      }*/
+    }
+  };
+
+  // Called when consumption is complete
+  IabHelper.OnConsumeFinishedListener mConsumeFinishedListener = new IabHelper.OnConsumeFinishedListener() {
+    public void onConsumeFinished(Purchase purchase, IabResult result) {
+      Log.d(TAG, "Consumption finished. Purchase: " + purchase + ", result: " + result);
+
+      // if we were disposed of in the meantime, quit.
+      if (mHelper == null) return;
+
+      // We know this is the "gas" sku because it's the only one we consume,
+      // so we don't check which sku was consumed. If you have more than one
+      // sku, you probably should check...
+      if (result.isSuccess()) {
+        // successfully consumed, so we apply the effects of the item in our
+        // game world's logic, which in our case means filling the gas tank a bit
+        Log.d(TAG, "Consumption successful. Provisioning.");
+      }
+      else {
+        Log.d(TAG, "Error while consuming: " + result);
+      }
+      Log.d(TAG, "End consumption flow.");
+
+      returnResponse(purchase);
+
+    }
+  };
+
+  void returnResponse(Purchase purchase) {
+    Map<String, Object> response = new HashMap<String, Object>();
+    response.put("purchased", true);
+    response.put("orderId", purchase.getOrderId());
+    response.put("packageName", purchase.getPackageName());
+    response.put("sku", purchase.getSku());
+    response.put("token", purchase.getToken());
+    response.put("purchaseTime", purchase.getPurchaseTime());
+    _result.success(response);
+  }
+
+
+
+  /** Verifies the developer payload of a purchase. */
+  boolean verifyDeveloperPayload(Purchase p) {
+    String payload = p.getDeveloperPayload();
+
+    /*
+     * TODO: verify that the developer payload of the purchase is correct. It will be
+     * the same one that you sent when initiating the purchase.
+     *
+     * WARNING: Locally generating a random string when starting a purchase and
+     * verifying it here might seem like a good approach, but this will fail in the
+     * case where the user purchases an item on one device and then uses your app on
+     * a different device, because on the other device you will not have access to the
+     * random string you originally generated.
+     *
+     * So a good developer payload has these characteristics:
+     *
+     * 1. If two different users purchase an item, the payload is different between them,
+     *    so that one user's purchase can't be replayed to another user.
+     *
+     * 2. The payload must be such that you can verify it even when the app wasn't the
+     *    one who initiated the purchase flow (so that items purchased by the user on
+     *    one device work on other devices owned by the user).
+     *
+     * Using your own server to store and verify developer payloads across app
+     * installations is recommended.
+     */
+
+    return true;
+  }
+
+  @Override
+  public void onDetachedFromEngine(@NonNull FlutterPluginBinding binding) {
+    channel.setMethodCallHandler(null);
+  }
+
+  @Override
+  public void onAttachedToActivity(@NonNull ActivityPluginBinding binding) {
+    _activity = binding.getActivity();
+    binding.addActivityResultListener(new PluginRegistry.ActivityResultListener() {
+      @Override
+      public boolean onActivityResult(int requestCode, int resultCode, Intent data) {
+        Log.d(TAG, "onActivityResult(" + requestCode + "," + resultCode + "," + data);
+        if (mHelper == null) return false;
+
+        // Pass on the activity result to the helper for handling
+        if (!mHelper.handleActivityResult(requestCode, resultCode, data)) {
+          // not handled, so handle it ourselves (here's where you'd
+          // perform any handling of activity results not related to in-app
+          // billing...
+        }
+        else {
+          Log.d(TAG, "onActivityResult handled by IABUtil.");
+        }
+        return true;
+      }
+    });
+  }
+
+  @Override
+  public void onDetachedFromActivityForConfigChanges() {
+
+  }
+
+  @Override
+  public void onReattachedToActivityForConfigChanges(@NonNull ActivityPluginBinding binding) {
+
+  }
+
+  @Override
+  public void onDetachedFromActivity() {
+
+  }
+}
diff --git a/android/src/main/java/ir/appeto/myketpayment/util/Base64.java b/android/src/main/java/ir/appeto/myketpayment/util/Base64.java
new file mode 100644
index 0000000..533e0d1
--- /dev/null
+++ b/android/src/main/java/ir/appeto/myketpayment/util/Base64.java
@@ -0,0 +1,570 @@
+// Portions copyright 2002, Google, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package ir.appeto.myketpayment.util;
+
+// This code was converted from code at http://iharder.sourceforge.net/base64/
+// Lots of extraneous features were removed.
+/* The original code said:
+ * <p>
+ * I am placing this code in the Public Domain. Do with it as you will.
+ * This software comes with no guarantees or warranties but with
+ * plenty of well-wishing instead!
+ * Please visit
+ * <a href="http://iharder.net/xmlizable">http://iharder.net/xmlizable</a>
+ * periodically to check for updates or to contribute improvements.
+ * </p>
+ *
+ * @author Robert Harder
+ * @author rharder@usa.net
+ * @version 1.3
+ */
+
+/**
+ * Base64 converter class. This code is not a complete MIME encoder;
+ * it simply converts binary data to base64 data and back.
+ *
+ * <p>Note {@link CharBase64} is a GWT-compatible implementation of this
+ * class.
+ */
+public class Base64 {
+    /** Specify encoding (value is {@code true}). */
+    public final static boolean ENCODE = true;
+
+    /** Specify decoding (value is {@code false}). */
+    public final static boolean DECODE = false;
+
+    /** The equals sign (=) as a byte. */
+    private final static byte EQUALS_SIGN = (byte) '=';
+
+    /** The new line character (\n) as a byte. */
+    private final static byte NEW_LINE = (byte) '\n';
+
+    /**
+     * The 64 valid Base64 values.
+     */
+    private final static byte[] ALPHABET =
+        {(byte) 'A', (byte) 'B', (byte) 'C', (byte) 'D', (byte) 'E', (byte) 'F',
+        (byte) 'G', (byte) 'H', (byte) 'I', (byte) 'J', (byte) 'K',
+        (byte) 'L', (byte) 'M', (byte) 'N', (byte) 'O', (byte) 'P',
+        (byte) 'Q', (byte) 'R', (byte) 'S', (byte) 'T', (byte) 'U',
+        (byte) 'V', (byte) 'W', (byte) 'X', (byte) 'Y', (byte) 'Z',
+        (byte) 'a', (byte) 'b', (byte) 'c', (byte) 'd', (byte) 'e',
+        (byte) 'f', (byte) 'g', (byte) 'h', (byte) 'i', (byte) 'j',
+        (byte) 'k', (byte) 'l', (byte) 'm', (byte) 'n', (byte) 'o',
+        (byte) 'p', (byte) 'q', (byte) 'r', (byte) 's', (byte) 't',
+        (byte) 'u', (byte) 'v', (byte) 'w', (byte) 'x', (byte) 'y',
+        (byte) 'z', (byte) '0', (byte) '1', (byte) '2', (byte) '3',
+        (byte) '4', (byte) '5', (byte) '6', (byte) '7', (byte) '8',
+        (byte) '9', (byte) '+', (byte) '/'};
+
+    /**
+     * The 64 valid web safe Base64 values.
+     */
+    private final static byte[] WEBSAFE_ALPHABET =
+        {(byte) 'A', (byte) 'B', (byte) 'C', (byte) 'D', (byte) 'E', (byte) 'F',
+        (byte) 'G', (byte) 'H', (byte) 'I', (byte) 'J', (byte) 'K',
+        (byte) 'L', (byte) 'M', (byte) 'N', (byte) 'O', (byte) 'P',
+        (byte) 'Q', (byte) 'R', (byte) 'S', (byte) 'T', (byte) 'U',
+        (byte) 'V', (byte) 'W', (byte) 'X', (byte) 'Y', (byte) 'Z',
+        (byte) 'a', (byte) 'b', (byte) 'c', (byte) 'd', (byte) 'e',
+        (byte) 'f', (byte) 'g', (byte) 'h', (byte) 'i', (byte) 'j',
+        (byte) 'k', (byte) 'l', (byte) 'm', (byte) 'n', (byte) 'o',
+        (byte) 'p', (byte) 'q', (byte) 'r', (byte) 's', (byte) 't',
+        (byte) 'u', (byte) 'v', (byte) 'w', (byte) 'x', (byte) 'y',
+        (byte) 'z', (byte) '0', (byte) '1', (byte) '2', (byte) '3',
+        (byte) '4', (byte) '5', (byte) '6', (byte) '7', (byte) '8',
+        (byte) '9', (byte) '-', (byte) '_'};
+
+    /**
+     * Translates a Base64 value to either its 6-bit reconstruction value
+     * or a negative number indicating some other meaning.
+     **/
+    private final static byte[] DECODABET = {-9, -9, -9, -9, -9, -9, -9, -9, -9, // Decimal  0 -  8
+        -5, -5, // Whitespace: Tab and Linefeed
+        -9, -9, // Decimal 11 - 12
+        -5, // Whitespace: Carriage Return
+        -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, // Decimal 14 - 26
+        -9, -9, -9, -9, -9, // Decimal 27 - 31
+        -5, // Whitespace: Space
+        -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, // Decimal 33 - 42
+        62, // Plus sign at decimal 43
+        -9, -9, -9, // Decimal 44 - 46
+        63, // Slash at decimal 47
+        52, 53, 54, 55, 56, 57, 58, 59, 60, 61, // Numbers zero through nine
+        -9, -9, -9, // Decimal 58 - 60
+        -1, // Equals sign at decimal 61
+        -9, -9, -9, // Decimal 62 - 64
+        0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, // Letters 'A' through 'N'
+        14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, // Letters 'O' through 'Z'
+        -9, -9, -9, -9, -9, -9, // Decimal 91 - 96
+        26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, // Letters 'a' through 'm'
+        39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, // Letters 'n' through 'z'
+        -9, -9, -9, -9, -9 // Decimal 123 - 127
+        /*  ,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,     // Decimal 128 - 139
+        -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,     // Decimal 140 - 152
+        -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,     // Decimal 153 - 165
+        -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,     // Decimal 166 - 178
+        -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,     // Decimal 179 - 191
+        -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,     // Decimal 192 - 204
+        -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,     // Decimal 205 - 217
+        -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,     // Decimal 218 - 230
+        -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,     // Decimal 231 - 243
+        -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9         // Decimal 244 - 255 */
+    };
+
+    /** The web safe decodabet */
+    private final static byte[] WEBSAFE_DECODABET =
+        {-9, -9, -9, -9, -9, -9, -9, -9, -9, // Decimal  0 -  8
+        -5, -5, // Whitespace: Tab and Linefeed
+        -9, -9, // Decimal 11 - 12
+        -5, // Whitespace: Carriage Return
+        -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, // Decimal 14 - 26
+        -9, -9, -9, -9, -9, // Decimal 27 - 31
+        -5, // Whitespace: Space
+        -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, -9, // Decimal 33 - 44
+        62, // Dash '-' sign at decimal 45
+        -9, -9, // Decimal 46-47
+        52, 53, 54, 55, 56, 57, 58, 59, 60, 61, // Numbers zero through nine
+        -9, -9, -9, // Decimal 58 - 60
+        -1, // Equals sign at decimal 61
+        -9, -9, -9, // Decimal 62 - 64
+        0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, // Letters 'A' through 'N'
+        14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, // Letters 'O' through 'Z'
+        -9, -9, -9, -9, // Decimal 91-94
+        63, // Underscore '_' at decimal 95
+        -9, // Decimal 96
+        26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, // Letters 'a' through 'm'
+        39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, // Letters 'n' through 'z'
+        -9, -9, -9, -9, -9 // Decimal 123 - 127
+        /*  ,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,     // Decimal 128 - 139
+        -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,     // Decimal 140 - 152
+        -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,     // Decimal 153 - 165
+        -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,     // Decimal 166 - 178
+        -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,     // Decimal 179 - 191
+        -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,     // Decimal 192 - 204
+        -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,     // Decimal 205 - 217
+        -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,     // Decimal 218 - 230
+        -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,     // Decimal 231 - 243
+        -9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9,-9         // Decimal 244 - 255 */
+        };
+
+    // Indicates white space in encoding
+    private final static byte WHITE_SPACE_ENC = -5;
+    // Indicates equals sign in encoding
+    private final static byte EQUALS_SIGN_ENC = -1;
+
+    /** Defeats instantiation. */
+    private Base64() {
+    }
+
+    /* ********  E N C O D I N G   M E T H O D S  ******** */
+
+    /**
+     * Encodes up to three bytes of the array <var>source</var>
+     * and writes the resulting four Base64 bytes to <var>destination</var>.
+     * The source and destination arrays can be manipulated
+     * anywhere along their length by specifying
+     * <var>srcOffset</var> and <var>destOffset</var>.
+     * This method does not check to make sure your arrays
+     * are large enough to accommodate <var>srcOffset</var> + 3 for
+     * the <var>source</var> array or <var>destOffset</var> + 4 for
+     * the <var>destination</var> array.
+     * The actual number of significant bytes in your array is
+     * given by <var>numSigBytes</var>.
+     *
+     * @param source the array to convert
+     * @param srcOffset the index where conversion begins
+     * @param numSigBytes the number of significant bytes in your array
+     * @param destination the array to hold the conversion
+     * @param destOffset the index where output will be put
+     * @param alphabet is the encoding alphabet
+     * @return the <var>destination</var> array
+     * @since 1.3
+     */
+    private static byte[] encode3to4(byte[] source, int srcOffset,
+            int numSigBytes, byte[] destination, int destOffset, byte[] alphabet) {
+        //           1         2         3
+        // 01234567890123456789012345678901 Bit position
+        // --------000000001111111122222222 Array position from threeBytes
+        // --------|    ||    ||    ||    | Six bit groups to index alphabet
+        //          >>18  >>12  >> 6  >> 0  Right shift necessary
+        //                0x3f  0x3f  0x3f  Additional AND
+
+        // Create buffer with zero-padding if there are only one or two
+        // significant bytes passed in the array.
+        // We have to shift left 24 in order to flush out the 1's that appear
+        // when Java treats a value as negative that is cast from a byte to an int.
+        int inBuff =
+                (numSigBytes > 0 ? ((source[srcOffset] << 24) >>> 8) : 0)
+                | (numSigBytes > 1 ? ((source[srcOffset + 1] << 24) >>> 16) : 0)
+                | (numSigBytes > 2 ? ((source[srcOffset + 2] << 24) >>> 24) : 0);
+
+        switch (numSigBytes) {
+            case 3:
+                destination[destOffset] = alphabet[(inBuff >>> 18)];
+                destination[destOffset + 1] = alphabet[(inBuff >>> 12) & 0x3f];
+                destination[destOffset + 2] = alphabet[(inBuff >>> 6) & 0x3f];
+                destination[destOffset + 3] = alphabet[(inBuff) & 0x3f];
+                return destination;
+            case 2:
+                destination[destOffset] = alphabet[(inBuff >>> 18)];
+                destination[destOffset + 1] = alphabet[(inBuff >>> 12) & 0x3f];
+                destination[destOffset + 2] = alphabet[(inBuff >>> 6) & 0x3f];
+                destination[destOffset + 3] = EQUALS_SIGN;
+                return destination;
+            case 1:
+                destination[destOffset] = alphabet[(inBuff >>> 18)];
+                destination[destOffset + 1] = alphabet[(inBuff >>> 12) & 0x3f];
+                destination[destOffset + 2] = EQUALS_SIGN;
+                destination[destOffset + 3] = EQUALS_SIGN;
+                return destination;
+            default:
+                return destination;
+        } // end switch
+    } // end encode3to4
+
+    /**
+     * Encodes a byte array into Base64 notation.
+     * Equivalent to calling
+     * {@code encodeBytes(source, 0, source.length)}
+     *
+     * @param source The data to convert
+     * @since 1.4
+     */
+    public static String encode(byte[] source) {
+        return encode(source, 0, source.length, ALPHABET, true);
+    }
+
+    /**
+     * Encodes a byte array into web safe Base64 notation.
+     *
+     * @param source The data to convert
+     * @param doPadding is {@code true} to pad result with '=' chars
+     *        if it does not fall on 3 byte boundaries
+     */
+    public static String encodeWebSafe(byte[] source, boolean doPadding) {
+        return encode(source, 0, source.length, WEBSAFE_ALPHABET, doPadding);
+    }
+
+    /**
+     * Encodes a byte array into Base64 notation.
+     *
+     * @param source the data to convert
+     * @param off offset in array where conversion should begin
+     * @param len length of data to convert
+     * @param alphabet the encoding alphabet
+     * @param doPadding is {@code true} to pad result with '=' chars
+     * if it does not fall on 3 byte boundaries
+     * @since 1.4
+     */
+    public static String encode(byte[] source, int off, int len, byte[] alphabet,
+            boolean doPadding) {
+        byte[] outBuff = encode(source, off, len, alphabet, Integer.MAX_VALUE);
+        int outLen = outBuff.length;
+
+        // If doPadding is false, set length to truncate '='
+        // padding characters
+        while (doPadding == false && outLen > 0) {
+            if (outBuff[outLen - 1] != '=') {
+                break;
+            }
+            outLen -= 1;
+        }
+
+        return new String(outBuff, 0, outLen);
+    }
+
+    /**
+     * Encodes a byte array into Base64 notation.
+     *
+     * @param source the data to convert
+     * @param off offset in array where conversion should begin
+     * @param len length of data to convert
+     * @param alphabet is the encoding alphabet
+     * @param maxLineLength maximum length of one line.
+     * @return the BASE64-encoded byte array
+     */
+    public static byte[] encode(byte[] source, int off, int len, byte[] alphabet,
+            int maxLineLength) {
+        int lenDiv3 = (len + 2) / 3; // ceil(len / 3)
+        int len43 = lenDiv3 * 4;
+        byte[] outBuff = new byte[len43 // Main 4:3
+                                  + (len43 / maxLineLength)]; // New lines
+
+        int d = 0;
+        int e = 0;
+        int len2 = len - 2;
+        int lineLength = 0;
+        for (; d < len2; d += 3, e += 4) {
+
+            // The following block of code is the same as
+            // encode3to4( source, d + off, 3, outBuff, e, alphabet );
+            // but inlined for faster encoding (~20% improvement)
+            int inBuff =
+                    ((source[d + off] << 24) >>> 8)
+                    | ((source[d + 1 + off] << 24) >>> 16)
+                    | ((source[d + 2 + off] << 24) >>> 24);
+            outBuff[e] = alphabet[(inBuff >>> 18)];
+            outBuff[e + 1] = alphabet[(inBuff >>> 12) & 0x3f];
+            outBuff[e + 2] = alphabet[(inBuff >>> 6) & 0x3f];
+            outBuff[e + 3] = alphabet[(inBuff) & 0x3f];
+
+            lineLength += 4;
+            if (lineLength == maxLineLength) {
+                outBuff[e + 4] = NEW_LINE;
+                e++;
+                lineLength = 0;
+            } // end if: end of line
+        } // end for: each piece of array
+
+        if (d < len) {
+            encode3to4(source, d + off, len - d, outBuff, e, alphabet);
+
+            lineLength += 4;
+            if (lineLength == maxLineLength) {
+                // Add a last newline
+                outBuff[e + 4] = NEW_LINE;
+                e++;
+            }
+            e += 4;
+        }
+
+        assert (e == outBuff.length);
+        return outBuff;
+    }
+
+
+    /* ********  D E C O D I N G   M E T H O D S  ******** */
+
+
+    /**
+     * Decodes four bytes from array <var>source</var>
+     * and writes the resulting bytes (up to three of them)
+     * to <var>destination</var>.
+     * The source and destination arrays can be manipulated
+     * anywhere along their length by specifying
+     * <var>srcOffset</var> and <var>destOffset</var>.
+     * This method does not check to make sure your arrays
+     * are large enough to accommodate <var>srcOffset</var> + 4 for
+     * the <var>source</var> array or <var>destOffset</var> + 3 for
+     * the <var>destination</var> array.
+     * This method returns the actual number of bytes that
+     * were converted from the Base64 encoding.
+     *
+     *
+     * @param source the array to convert
+     * @param srcOffset the index where conversion begins
+     * @param destination the array to hold the conversion
+     * @param destOffset the index where output will be put
+     * @param decodabet the decodabet for decoding Base64 content
+     * @return the number of decoded bytes converted
+     * @since 1.3
+     */
+    private static int decode4to3(byte[] source, int srcOffset,
+            byte[] destination, int destOffset, byte[] decodabet) {
+        // Example: Dk==
+        if (source[srcOffset + 2] == EQUALS_SIGN) {
+            int outBuff =
+                    ((decodabet[source[srcOffset]] << 24) >>> 6)
+                    | ((decodabet[source[srcOffset + 1]] << 24) >>> 12);
+
+            destination[destOffset] = (byte) (outBuff >>> 16);
+            return 1;
+        } else if (source[srcOffset + 3] == EQUALS_SIGN) {
+            // Example: DkL=
+            int outBuff =
+                    ((decodabet[source[srcOffset]] << 24) >>> 6)
+                    | ((decodabet[source[srcOffset + 1]] << 24) >>> 12)
+                    | ((decodabet[source[srcOffset + 2]] << 24) >>> 18);
+
+            destination[destOffset] = (byte) (outBuff >>> 16);
+            destination[destOffset + 1] = (byte) (outBuff >>> 8);
+            return 2;
+        } else {
+            // Example: DkLE
+            int outBuff =
+                    ((decodabet[source[srcOffset]] << 24) >>> 6)
+                    | ((decodabet[source[srcOffset + 1]] << 24) >>> 12)
+                    | ((decodabet[source[srcOffset + 2]] << 24) >>> 18)
+                    | ((decodabet[source[srcOffset + 3]] << 24) >>> 24);
+
+            destination[destOffset] = (byte) (outBuff >> 16);
+            destination[destOffset + 1] = (byte) (outBuff >> 8);
+            destination[destOffset + 2] = (byte) (outBuff);
+            return 3;
+        }
+    } // end decodeToBytes
+
+
+    /**
+     * Decodes data from Base64 notation.
+     *
+     * @param s the string to decode (decoded in default encoding)
+     * @return the decoded data
+     * @since 1.4
+     */
+    public static byte[] decode(String s) throws Base64DecoderException {
+        byte[] bytes = s.getBytes();
+        return decode(bytes, 0, bytes.length);
+    }
+
+    /**
+     * Decodes data from web safe Base64 notation.
+     * Web safe encoding uses '-' instead of '+', '_' instead of '/'
+     *
+     * @param s the string to decode (decoded in default encoding)
+     * @return the decoded data
+     */
+    public static byte[] decodeWebSafe(String s) throws Base64DecoderException {
+        byte[] bytes = s.getBytes();
+        return decodeWebSafe(bytes, 0, bytes.length);
+    }
+
+    /**
+     * Decodes Base64 content in byte array format and returns
+     * the decoded byte array.
+     *
+     * @param source The Base64 encoded data
+     * @return decoded data
+     * @since 1.3
+     * @throws Base64DecoderException
+     */
+    public static byte[] decode(byte[] source) throws Base64DecoderException {
+        return decode(source, 0, source.length);
+    }
+
+    /**
+     * Decodes web safe Base64 content in byte array format and returns
+     * the decoded data.
+     * Web safe encoding uses '-' instead of '+', '_' instead of '/'
+     *
+     * @param source the string to decode (decoded in default encoding)
+     * @return the decoded data
+     */
+    public static byte[] decodeWebSafe(byte[] source)
+            throws Base64DecoderException {
+        return decodeWebSafe(source, 0, source.length);
+    }
+
+    /**
+     * Decodes Base64 content in byte array format and returns
+     * the decoded byte array.
+     *
+     * @param source the Base64 encoded data
+     * @param off    the offset of where to begin decoding
+     * @param len    the length of characters to decode
+     * @return decoded data
+     * @since 1.3
+     * @throws Base64DecoderException
+     */
+    public static byte[] decode(byte[] source, int off, int len)
+            throws Base64DecoderException {
+        return decode(source, off, len, DECODABET);
+    }
+
+    /**
+     * Decodes web safe Base64 content in byte array format and returns
+     * the decoded byte array.
+     * Web safe encoding uses '-' instead of '+', '_' instead of '/'
+     *
+     * @param source the Base64 encoded data
+     * @param off    the offset of where to begin decoding
+     * @param len    the length of characters to decode
+     * @return decoded data
+     */
+    public static byte[] decodeWebSafe(byte[] source, int off, int len)
+            throws Base64DecoderException {
+        return decode(source, off, len, WEBSAFE_DECODABET);
+    }
+
+    /**
+     * Decodes Base64 content using the supplied decodabet and returns
+     * the decoded byte array.
+     *
+     * @param source the Base64 encoded data
+     * @param off the offset of where to begin decoding
+     * @param len the length of characters to decode
+     * @param decodabet the decodabet for decoding Base64 content
+     * @return decoded data
+     */
+    public static byte[] decode(byte[] source, int off, int len, byte[] decodabet)
+            throws Base64DecoderException {
+        int len34 = len * 3 / 4;
+        byte[] outBuff = new byte[2 + len34]; // Upper limit on size of output
+        int outBuffPosn = 0;
+
+        byte[] b4 = new byte[4];
+        int b4Posn = 0;
+        int i = 0;
+        byte sbiCrop = 0;
+        byte sbiDecode = 0;
+        for (i = 0; i < len; i++) {
+            sbiCrop = (byte) (source[i + off] & 0x7f); // Only the low seven bits
+            sbiDecode = decodabet[sbiCrop];
+
+            if (sbiDecode >= WHITE_SPACE_ENC) { // White space Equals sign or better
+                if (sbiDecode >= EQUALS_SIGN_ENC) {
+                    // An equals sign (for padding) must not occur at position 0 or 1
+                    // and must be the last byte[s] in the encoded value
+                    if (sbiCrop == EQUALS_SIGN) {
+                        int bytesLeft = len - i;
+                        byte lastByte = (byte) (source[len - 1 + off] & 0x7f);
+                        if (b4Posn == 0 || b4Posn == 1) {
+                            throw new Base64DecoderException(
+                                    "invalid padding byte '=' at byte offset " + i);
+                        } else if ((b4Posn == 3 && bytesLeft > 2)
+                                || (b4Posn == 4 && bytesLeft > 1)) {
+                            throw new Base64DecoderException(
+                                    "padding byte '=' falsely signals end of encoded value "
+                                            + "at offset " + i);
+                        } else if (lastByte != EQUALS_SIGN && lastByte != NEW_LINE) {
+                            throw new Base64DecoderException(
+                                    "encoded value has invalid trailing byte");
+                        }
+                        break;
+                    }
+
+                    b4[b4Posn++] = sbiCrop;
+                    if (b4Posn == 4) {
+                        outBuffPosn += decode4to3(b4, 0, outBuff, outBuffPosn, decodabet);
+                        b4Posn = 0;
+                    }
+                }
+            } else {
+                throw new Base64DecoderException("Bad Base64 input character at " + i
+                        + ": " + source[i + off] + "(decimal)");
+            }
+        }
+
+        // Because web safe encoding allows non padding base64 encodes, we
+        // need to pad the rest of the b4 buffer with equal signs when
+        // b4Posn != 0.  There can be at most 2 equal signs at the end of
+        // four characters, so the b4 buffer must have two or three
+        // characters.  This also catches the case where the input is
+        // padded with EQUALS_SIGN
+        if (b4Posn != 0) {
+            if (b4Posn == 1) {
+                throw new Base64DecoderException("single trailing character at offset "
+                        + (len - 1));
+            }
+            b4[b4Posn++] = EQUALS_SIGN;
+            outBuffPosn += decode4to3(b4, 0, outBuff, outBuffPosn, decodabet);
+        }
+
+        byte[] out = new byte[outBuffPosn];
+        System.arraycopy(outBuff, 0, out, 0, outBuffPosn);
+        return out;
+    }
+}
diff --git a/android/src/main/java/ir/appeto/myketpayment/util/Base64DecoderException.java b/android/src/main/java/ir/appeto/myketpayment/util/Base64DecoderException.java
new file mode 100644
index 0000000..611c72c
--- /dev/null
+++ b/android/src/main/java/ir/appeto/myketpayment/util/Base64DecoderException.java
@@ -0,0 +1,32 @@
+// Copyright 2002, Google, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package ir.appeto.myketpayment.util;
+
+/**
+ * Exception thrown when encountering an invalid Base64 input character.
+ *
+ * @author nelson
+ */
+public class Base64DecoderException extends Exception {
+    public Base64DecoderException() {
+        super();
+    }
+
+    public Base64DecoderException(String s) {
+        super(s);
+    }
+
+    private static final long serialVersionUID = 1L;
+}
diff --git a/android/src/main/java/ir/appeto/myketpayment/util/IabException.java b/android/src/main/java/ir/appeto/myketpayment/util/IabException.java
new file mode 100644
index 0000000..82275f2
--- /dev/null
+++ b/android/src/main/java/ir/appeto/myketpayment/util/IabException.java
@@ -0,0 +1,43 @@
+/* Copyright (c) 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package ir.appeto.myketpayment.util;
+
+/**
+ * Exception thrown when something went wrong with in-app billing.
+ * An IabException has an associated IabResult (an error).
+ * To get the IAB result that caused this exception to be thrown,
+ * call {@link #getResult()}.
+ */
+public class IabException extends Exception {
+    IabResult mResult;
+
+    public IabException(IabResult r) {
+        this(r, null);
+    }
+    public IabException(int response, String message) {
+        this(new IabResult(response, message));
+    }
+    public IabException(IabResult r, Exception cause) {
+        super(r.getMessage(), cause);
+        mResult = r;
+    }
+    public IabException(int response, String message, Exception cause) {
+        this(new IabResult(response, message), cause);
+    }
+
+    /** Returns the IAB result (error) that this exception signals. */
+    public IabResult getResult() { return mResult; }
+}
\ No newline at end of file
diff --git a/android/src/main/java/ir/appeto/myketpayment/util/IabHelper.java b/android/src/main/java/ir/appeto/myketpayment/util/IabHelper.java
new file mode 100644
index 0000000..ca5673c
--- /dev/null
+++ b/android/src/main/java/ir/appeto/myketpayment/util/IabHelper.java
@@ -0,0 +1,1045 @@
+/* Copyright (c) 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package ir.appeto.myketpayment.util;
+
+import android.app.Activity;
+import android.app.PendingIntent;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.content.IntentSender;
+import android.content.IntentSender.SendIntentException;
+import android.content.ServiceConnection;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.IBinder;
+import android.os.RemoteException;
+import android.text.TextUtils;
+import android.util.Log;
+
+import com.android.vending.billing.IInAppBillingService;
+
+import org.json.JSONException;
+
+import java.util.ArrayList;
+import java.util.List;
+
+
+/**
+ * Provides convenience methods for in-app billing. You can create one instance of this
+ * class for your application and use it to process in-app billing operations.
+ * It provides synchronous (blocking) and asynchronous (non-blocking) methods for
+ * many common in-app billing operations, as well as automatic signature
+ * verification.
+ *
+ * After instantiating, you must perform setup in order to start using the object.
+ * To perform setup, call the {@link #startSetup} method and provide a listener;
+ * that listener will be notified when setup is complete, after which (and not before)
+ * you may call other methods.
+ *
+ * After setup is complete, you will typically want to request an inventory of owned
+ * items and subscriptions. See {@link #queryInventory}, {@link #queryInventoryAsync}
+ * and related methods.
+ *
+ * When you are done with this object, don't forget to call {@link #dispose}
+ * to ensure proper cleanup. This object holds a binding to the in-app billing
+ * service, which will leak unless you dispose of it correctly. If you created
+ * the object on an Activity's onCreate method, then the recommended
+ * place to dispose of it is the Activity's onDestroy method.
+ *
+ * A note about threading: When using this object from a background thread, you may
+ * call the blocking versions of methods; when using from a UI thread, call
+ * only the asynchronous versions and handle the results via callbacks.
+ * Also, notice that you can only call one asynchronous operation at a time;
+ * attempting to start a second asynchronous operation while the first one
+ * has not yet completed will result in an exception being thrown.
+ *
+ * @author Bruno Oliveira (Google)
+ *
+ */
+public class IabHelper {
+    // Is debug logging enabled?
+    boolean mDebugLog = false;
+    String mDebugTag = "IabHelper";
+
+    // Is setup done?
+    boolean mSetupDone = false;
+
+    // Has this object been disposed of? (If so, we should ignore callbacks, etc)
+    boolean mDisposed = false;
+
+    // Are subscriptions supported?
+    boolean mSubscriptionsSupported = false;
+
+    // Is an asynchronous operation in progress?
+    // (only one at a time can be in progress)
+    boolean mAsyncInProgress = false;
+
+    // (for logging/debugging)
+    // if mAsyncInProgress == true, what asynchronous operation is in progress?
+    String mAsyncOperation = "";
+
+    // Context we were passed during initialization
+    Context mContext;
+
+    // Connection to the service
+    IInAppBillingService mService;
+    ServiceConnection mServiceConn;
+
+    // The request code used to launch purchase flow
+    int mRequestCode;
+
+    // The item type of the current purchase flow
+    String mPurchasingItemType;
+
+    // Public key for verifying signature, in base64 encoding
+    String mSignatureBase64 = null;
+
+    // Billing response codes
+    public static final int BILLING_RESPONSE_RESULT_OK = 0;
+    public static final int BILLING_RESPONSE_RESULT_USER_CANCELED = 1;
+    public static final int BILLING_RESPONSE_RESULT_BILLING_UNAVAILABLE = 3;
+    public static final int BILLING_RESPONSE_RESULT_ITEM_UNAVAILABLE = 4;
+    public static final int BILLING_RESPONSE_RESULT_DEVELOPER_ERROR = 5;
+    public static final int BILLING_RESPONSE_RESULT_ERROR = 6;
+    public static final int BILLING_RESPONSE_RESULT_ITEM_ALREADY_OWNED = 7;
+    public static final int BILLING_RESPONSE_RESULT_ITEM_NOT_OWNED = 8;
+
+    // IAB Helper error codes
+    public static final int IABHELPER_ERROR_BASE = -1000;
+    public static final int IABHELPER_REMOTE_EXCEPTION = -1001;
+    public static final int IABHELPER_BAD_RESPONSE = -1002;
+    public static final int IABHELPER_VERIFICATION_FAILED = -1003;
+    public static final int IABHELPER_SEND_INTENT_FAILED = -1004;
+    public static final int IABHELPER_USER_CANCELLED = -1005;
+    public static final int IABHELPER_UNKNOWN_PURCHASE_RESPONSE = -1006;
+    public static final int IABHELPER_MISSING_TOKEN = -1007;
+    public static final int IABHELPER_UNKNOWN_ERROR = -1008;
+    public static final int IABHELPER_SUBSCRIPTIONS_NOT_AVAILABLE = -1009;
+    public static final int IABHELPER_INVALID_CONSUMPTION = -1010;
+
+    // Keys for the responses from InAppBillingService
+    public static final String RESPONSE_CODE = "RESPONSE_CODE";
+    public static final String RESPONSE_GET_SKU_DETAILS_LIST = "DETAILS_LIST";
+    public static final String RESPONSE_BUY_INTENT = "BUY_INTENT";
+    public static final String RESPONSE_INAPP_PURCHASE_DATA = "INAPP_PURCHASE_DATA";
+    public static final String RESPONSE_INAPP_SIGNATURE = "INAPP_DATA_SIGNATURE";
+    public static final String RESPONSE_INAPP_ITEM_LIST = "INAPP_PURCHASE_ITEM_LIST";
+    public static final String RESPONSE_INAPP_PURCHASE_DATA_LIST = "INAPP_PURCHASE_DATA_LIST";
+    public static final String RESPONSE_INAPP_SIGNATURE_LIST = "INAPP_DATA_SIGNATURE_LIST";
+    public static final String INAPP_CONTINUATION_TOKEN = "INAPP_CONTINUATION_TOKEN";
+
+    // Item types
+    public static final String ITEM_TYPE_INAPP = "inapp";
+    public static final String ITEM_TYPE_SUBS = "subs";
+
+    // some fields on the getSkuDetails response bundle
+    public static final String GET_SKU_DETAILS_ITEM_LIST = "ITEM_ID_LIST";
+    public static final String GET_SKU_DETAILS_ITEM_TYPE_LIST = "ITEM_TYPE_LIST";
+
+    private static final String INTENT_V2_SUPPORT = "INTENT_V2_SUPPORT";
+
+    /**
+     * Creates an instance. After creation, it will not yet be ready to use. You must perform
+     * setup by calling {@link #startSetup} and wait for setup to complete. This constructor does not
+     * block and is safe to call from a UI thread.
+     *
+     * @param ctx Your application or Activity context. Needed to bind to the in-app billing service.
+     * @param base64PublicKey Your application's public key, encoded in base64.
+     *     This is used for verification of purchase signatures. You can find your app's base64-encoded
+     *     public key in your application's page on Google Play Developer Console. Note that this
+     *     is NOT your "developer public key".
+     */
+    public IabHelper(Context ctx, String base64PublicKey) {
+        mContext = ctx.getApplicationContext();
+        mSignatureBase64 = base64PublicKey;
+        logDebug("IAB helper created.");
+    }
+
+    /**
+     * Enables or disable debug logging through LogCat.
+     */
+    public void enableDebugLogging(boolean enable, String tag) {
+        checkNotDisposed();
+        mDebugLog = enable;
+        mDebugTag = tag;
+    }
+
+    public void enableDebugLogging(boolean enable) {
+        checkNotDisposed();
+        mDebugLog = enable;
+    }
+
+    /**
+     * Callback for setup process. This listener's {@link #onIabSetupFinished} method is called
+     * when the setup process is complete.
+     */
+    public interface OnIabSetupFinishedListener {
+        /**
+         * Called to notify that setup is complete.
+         *
+         * @param result The result of the setup process.
+         */
+        public void onIabSetupFinished(IabResult result);
+    }
+
+    /**
+     * Starts the setup process. This will start up the setup process asynchronously.
+     * You will be notified through the listener when the setup process is complete.
+     * This method is safe to call from a UI thread.
+     *
+     * @param listener The listener to notify when the setup process is complete.
+     */
+    public void startSetup(final OnIabSetupFinishedListener listener) {
+        // If already set up, can't do it again.
+        checkNotDisposed();
+        if (mSetupDone) throw new IllegalStateException("IAB helper is already set up.");
+
+        // Connection to IAB service
+        logDebug("Starting in-app billing setup.");
+        mServiceConn = new ServiceConnection() {
+            @Override
+            public void onServiceDisconnected(ComponentName name) {
+                logDebug("Billing service disconnected.");
+                mService = null;
+            }
+
+            @Override
+            public void onServiceConnected(ComponentName name, IBinder service) {
+                if (mDisposed) return;
+                logDebug("Billing service connected.");
+                mService = IInAppBillingService.Stub.asInterface(service);
+                String packageName = mContext.getPackageName();
+                try {
+                    logDebug("Checking for in-app billing 3 support.");
+
+                    // check for in-app billing v3 support
+                    int response = mService.isBillingSupported(3, packageName, ITEM_TYPE_INAPP);
+                    if (response != BILLING_RESPONSE_RESULT_OK) {
+                        if (listener != null) listener.onIabSetupFinished(new IabResult(response,
+                                "Error checking for billing v3 support."));
+
+                        // if in-app purchases aren't supported, neither are subscriptions.
+                        mSubscriptionsSupported = false;
+                        return;
+                    }
+                    logDebug("In-app billing version 3 supported for " + packageName);
+
+                    // check for v3 subscriptions support
+                    response = mService.isBillingSupported(3, packageName, ITEM_TYPE_SUBS);
+                    if (response == BILLING_RESPONSE_RESULT_OK) {
+                        logDebug("Subscriptions AVAILABLE.");
+                        mSubscriptionsSupported = true;
+                    }
+                    else {
+                        logDebug("Subscriptions NOT AVAILABLE. Response: " + response);
+                    }
+
+                    mSetupDone = true;
+                }
+                catch (RemoteException e) {
+                    if (listener != null) {
+                        listener.onIabSetupFinished(new IabResult(IABHELPER_REMOTE_EXCEPTION,
+                                                    "RemoteException while setting up in-app billing."));
+                    }
+                    e.printStackTrace();
+                    return;
+                }
+
+                if (listener != null) {
+                    listener.onIabSetupFinished(new IabResult(BILLING_RESPONSE_RESULT_OK, "Setup successful."));
+                }
+            }
+        };
+
+        Intent serviceIntent = new Intent("ir.mservices.market.InAppBillingService.BIND");
+        serviceIntent.setPackage("ir.mservices.market");
+
+        PackageManager pm = mContext.getPackageManager();
+        List<ResolveInfo> intentServices = pm.queryIntentServices(serviceIntent, 0);
+        if (intentServices != null && !intentServices.isEmpty()) {
+            // service available to handle that Intent
+            mContext.bindService(serviceIntent, mServiceConn, Context.BIND_AUTO_CREATE);
+        }
+        else {
+            // no service available to handle that Intent
+            if (listener != null) {
+                listener.onIabSetupFinished(
+                        new IabResult(BILLING_RESPONSE_RESULT_BILLING_UNAVAILABLE,
+                        "Billing service unavailable on device."));
+            }
+        }
+    }
+
+    /**
+     * Dispose of object, releasing resources. It's very important to call this
+     * method when you are done with this object. It will release any resources
+     * used by it such as service connections. Naturally, once the object is
+     * disposed of, it can't be used again.
+     */
+    public void dispose() {
+        logDebug("Disposing.");
+        mSetupDone = false;
+        if (mServiceConn != null) {
+            logDebug("Unbinding from service.");
+            if (mContext != null && mService != null) {
+                mContext.unbindService(mServiceConn);
+            }
+        }
+        mDisposed = true;
+        mContext = null;
+        mServiceConn = null;
+        mService = null;
+        mPurchaseListener = null;
+    }
+
+    private void checkNotDisposed() {
+        if (mDisposed) throw new IllegalStateException("IabHelper was disposed of, so it cannot be used.");
+    }
+
+    /** Returns whether subscriptions are supported. */
+    public boolean subscriptionsSupported() {
+        checkNotDisposed();
+        return mSubscriptionsSupported;
+    }
+
+
+    /**
+     * Callback that notifies when a purchase is finished.
+     */
+    public interface OnIabPurchaseFinishedListener {
+        /**
+         * Called to notify that an in-app purchase finished. If the purchase was successful,
+         * then the sku parameter specifies which item was purchased. If the purchase failed,
+         * the sku and extraData parameters may or may not be null, depending on how far the purchase
+         * process went.
+         *
+         * @param result The result of the purchase.
+         * @param info The purchase information (null if purchase failed)
+         */
+        public void onIabPurchaseFinished(IabResult result, Purchase info);
+    }
+
+    // The listener registered on launchPurchaseFlow, which we have to call back when
+    // the purchase finishes
+    OnIabPurchaseFinishedListener mPurchaseListener;
+
+    public void launchPurchaseFlow(Activity act, String sku, int requestCode, OnIabPurchaseFinishedListener listener) {
+        launchPurchaseFlow(act, sku, requestCode, listener, "");
+    }
+
+    public void launchPurchaseFlow(Activity act, String sku, int requestCode,
+            OnIabPurchaseFinishedListener listener, String extraData) {
+        launchPurchaseFlow(act, sku, ITEM_TYPE_INAPP, requestCode, listener, extraData);
+    }
+
+    public void launchSubscriptionPurchaseFlow(Activity act, String sku, int requestCode,
+            OnIabPurchaseFinishedListener listener) {
+        launchSubscriptionPurchaseFlow(act, sku, requestCode, listener, "");
+    }
+
+    public void launchSubscriptionPurchaseFlow(Activity act, String sku, int requestCode,
+            OnIabPurchaseFinishedListener listener, String extraData) {
+        launchPurchaseFlow(act, sku, ITEM_TYPE_SUBS, requestCode, listener, extraData);
+    }
+
+    /**
+     * Initiate the UI flow for an in-app purchase. Call this method to initiate an in-app purchase,
+     * which will involve bringing up the Google Play screen. The calling activity will be paused while
+     * the user interacts with Google Play, and the result will be delivered via the activity's
+     * {@link Activity#onActivityResult} method, at which point you must call
+     * this object's {@link #handleActivityResult} method to continue the purchase flow. This method
+     * MUST be called from the UI thread of the Activity.
+     *
+     * @param act The calling activity.
+     * @param sku The sku of the item to purchase.
+     * @param itemType indicates if it's a product or a subscription (ITEM_TYPE_INAPP or ITEM_TYPE_SUBS)
+     * @param requestCode A request code (to differentiate from other responses --
+     *     as in {@link Activity#startActivityForResult}).
+     * @param listener The listener to notify when the purchase process finishes
+     * @param extraData Extra data (developer payload), which will be returned with the purchase data
+     *     when the purchase completes. This extra data will be permanently bound to that purchase
+     *     and will always be returned when the purchase is queried.
+     */
+    public void launchPurchaseFlow(Activity act, String sku, String itemType, int requestCode,
+                        OnIabPurchaseFinishedListener listener, String extraData) {
+        checkNotDisposed();
+        checkSetupDone("launchPurchaseFlow");
+        flagStartAsync("launchPurchaseFlow");
+        IabResult result;
+
+        if (itemType.equals(ITEM_TYPE_SUBS) && !mSubscriptionsSupported) {
+            IabResult r = new IabResult(IABHELPER_SUBSCRIPTIONS_NOT_AVAILABLE,
+                    "Subscriptions are not available.");
+            flagEndAsync();
+            if (listener != null) listener.onIabPurchaseFinished(r, null);
+            return;
+        }
+
+        try {
+            logDebug("Constructing buy intent for " + sku + ", item type: " + itemType);
+            int apiVersion = 3;
+
+            Bundle configBundle = mService.getPurchaseConfig(apiVersion);
+            if (configBundle != null && configBundle.getBoolean(INTENT_V2_SUPPORT)) {
+                logDebug("launchBuyIntentV2 for " + sku + ", item type: " + itemType);
+                launchBuyIntentV2(act, sku, itemType, requestCode, listener, extraData);
+            } else {
+                logDebug("launchBuyIntent for " + sku + ", item type: " + itemType);
+                launchBuyIntent(act, sku, itemType, requestCode, listener, extraData);
+            }
+        } catch (SendIntentException e) {
+            logError("SendIntentException while launching purchase flow for sku " + sku);
+            e.printStackTrace();
+            flagEndAsync();
+
+            result = new IabResult(IABHELPER_SEND_INTENT_FAILED, "Failed to send intent.");
+            if (listener != null) listener.onIabPurchaseFinished(result, null);
+        } catch (RemoteException e) {
+            logError("RemoteException while launching purchase flow for sku " + sku);
+            e.printStackTrace();
+            flagEndAsync();
+
+            result = new IabResult(IABHELPER_REMOTE_EXCEPTION, "Remote exception while starting purchase flow");
+            if (listener != null) listener.onIabPurchaseFinished(result, null);
+        }
+    }
+
+    private void launchBuyIntentV2(Activity act, String sku, String itemType, int requestCode,
+            OnIabPurchaseFinishedListener listener, String extraData)
+            throws RemoteException {
+
+        int apiVersion = 3;
+        String packageName = mContext.getPackageName();
+
+        Bundle buyIntentBundle = mService.getBuyIntentV2(apiVersion, packageName, sku, itemType, extraData);
+        int response = getResponseCodeFromBundle(buyIntentBundle);
+
+        if (response != BILLING_RESPONSE_RESULT_OK) {
+            logError("Unable to buy item, Error response: " + getResponseDesc(response));
+            flagEndAsync();
+            IabResult result = new IabResult(response, "Unable to buy item");
+            if (listener != null) listener.onIabPurchaseFinished(result, null);
+            return;
+        }
+
+        Intent intent = buyIntentBundle.getParcelable(RESPONSE_BUY_INTENT);
+        logDebug("Launching buy intent v2 for " + sku + ". Request code: " + requestCode);
+        mRequestCode = requestCode;
+        mPurchaseListener = listener;
+        mPurchasingItemType = itemType;
+        act.startActivityForResult(intent, requestCode);
+    }
+
+    private void launchBuyIntent(Activity act, String sku, String itemType, int requestCode,
+            OnIabPurchaseFinishedListener listener, String extraData)
+            throws RemoteException, SendIntentException {
+
+        int apiVersion = 3;
+        String packageName = mContext.getPackageName();
+
+        Bundle buyIntentBundle = mService.getBuyIntent(apiVersion, packageName, sku, itemType, extraData);
+        int response = getResponseCodeFromBundle(buyIntentBundle);
+
+        if (response != BILLING_RESPONSE_RESULT_OK) {
+            logError("Unable to buy item, Error response: " + getResponseDesc(response));
+            flagEndAsync();
+            IabResult result = new IabResult(response, "Unable to buy item");
+            if (listener != null) listener.onIabPurchaseFinished(result, null);
+            return;
+        }
+
+        PendingIntent pendingIntent = buyIntentBundle.getParcelable(RESPONSE_BUY_INTENT);
+        logDebug("Launching buy intent v1 for " + sku + ". Request code: " + requestCode);
+        mRequestCode = requestCode;
+        mPurchaseListener = listener;
+        mPurchasingItemType = itemType;
+        act.startIntentSenderForResult(pendingIntent.getIntentSender(),
+                requestCode, new Intent(),
+                Integer.valueOf(0), Integer.valueOf(0),
+                Integer.valueOf(0));
+    }
+
+    /**
+     * Handles an activity result that's part of the purchase flow in in-app billing. If you
+     * are calling {@link #launchPurchaseFlow}, then you must call this method from your
+     * Activity's {@link Activity@onActivityResult} method. This method
+     * MUST be called from the UI thread of the Activity.
+     *
+     * @param requestCode The requestCode as you received it.
+     * @param resultCode The resultCode as you received it.
+     * @param data The data (Intent) as you received it.
+     * @return Returns true if the result was related to a purchase flow and was handled;
+     *     false if the result was not related to a purchase, in which case you should
+     *     handle it normally.
+     */
+    public boolean handleActivityResult(int requestCode, int resultCode, Intent data) {
+        IabResult result;
+        if (requestCode != mRequestCode) return false;
+
+        checkNotDisposed();
+        checkSetupDone("handleActivityResult");
+
+        // end of async purchase operation that started on launchPurchaseFlow
+        flagEndAsync();
+
+        if (data == null) {
+            logError("Null data in IAB activity result.");
+            result = new IabResult(IABHELPER_BAD_RESPONSE, "Null data in IAB result");
+            if (mPurchaseListener != null) mPurchaseListener.onIabPurchaseFinished(result, null);
+            return true;
+        }
+
+        int responseCode = getResponseCodeFromIntent(data);
+        String purchaseData = data.getStringExtra(RESPONSE_INAPP_PURCHASE_DATA);
+        String dataSignature = data.getStringExtra(RESPONSE_INAPP_SIGNATURE);
+
+        if (resultCode == Activity.RESULT_OK && responseCode == BILLING_RESPONSE_RESULT_OK) {
+            logDebug("Successful resultcode from purchase activity.");
+            logDebug("Purchase data: " + purchaseData);
+            logDebug("Data signature: " + dataSignature);
+            logDebug("Extras: " + data.getExtras());
+            logDebug("Expected item type: " + mPurchasingItemType);
+
+            if (purchaseData == null || dataSignature == null) {
+                logError("BUG: either purchaseData or dataSignature is null.");
+                logDebug("Extras: " + data.getExtras().toString());
+                result = new IabResult(IABHELPER_UNKNOWN_ERROR, "IAB returned null purchaseData or dataSignature");
+                if (mPurchaseListener != null) mPurchaseListener.onIabPurchaseFinished(result, null);
+                return true;
+            }
+
+            Purchase purchase = null;
+            try {
+                purchase = new Purchase(mPurchasingItemType, purchaseData, dataSignature);
+                String sku = purchase.getSku();
+
+                // Verify signature
+                if (!Security.verifyPurchase(mSignatureBase64, purchaseData, dataSignature)) {
+                    logError("Purchase signature verification FAILED for sku " + sku);
+                    result = new IabResult(IABHELPER_VERIFICATION_FAILED, "Signature verification failed for sku " + sku);
+                    if (mPurchaseListener != null) mPurchaseListener.onIabPurchaseFinished(result, purchase);
+                    return true;
+                }
+                logDebug("Purchase signature successfully verified.");
+            }
+            catch (JSONException e) {
+                logError("Failed to parse purchase data.");
+                e.printStackTrace();
+                result = new IabResult(IABHELPER_BAD_RESPONSE, "Failed to parse purchase data.");
+                if (mPurchaseListener != null) mPurchaseListener.onIabPurchaseFinished(result, null);
+                return true;
+            }
+
+            if (mPurchaseListener != null) {
+                mPurchaseListener.onIabPurchaseFinished(new IabResult(BILLING_RESPONSE_RESULT_OK, "Success"), purchase);
+            }
+        }
+        else if (resultCode == Activity.RESULT_OK) {
+            // result code was OK, but in-app billing response was not OK.
+            logDebug("Result code was OK but in-app billing response was not OK: " + getResponseDesc(responseCode));
+            if (mPurchaseListener != null) {
+                result = new IabResult(responseCode, "Problem purchashing item.");
+                mPurchaseListener.onIabPurchaseFinished(result, null);
+            }
+        }
+        else if (resultCode == Activity.RESULT_CANCELED) {
+            logDebug("Purchase canceled - Response: " + getResponseDesc(responseCode));
+            result = new IabResult(IABHELPER_USER_CANCELLED, "User canceled.");
+            if (mPurchaseListener != null) mPurchaseListener.onIabPurchaseFinished(result, null);
+        }
+        else {
+            logError("Purchase failed. Result code: " + Integer.toString(resultCode)
+                    + ". Response: " + getResponseDesc(responseCode));
+            result = new IabResult(IABHELPER_UNKNOWN_PURCHASE_RESPONSE, "Unknown purchase response.");
+            if (mPurchaseListener != null) mPurchaseListener.onIabPurchaseFinished(result, null);
+        }
+        return true;
+    }
+
+    public Inventory queryInventory(boolean querySkuDetails, List<String> moreSkus) throws IabException {
+        return queryInventory(querySkuDetails, moreSkus, null);
+    }
+
+    /**
+     * Queries the inventory. This will query all owned items from the server, as well as
+     * information on additional skus, if specified. This method may block or take long to execute.
+     * Do not call from a UI thread. For that, use the non-blocking version {@link #refreshInventoryAsync}.
+     *
+     * @param querySkuDetails if true, SKU details (price, description, etc) will be queried as well
+     *     as purchase information.
+     * @param moreItemSkus additional PRODUCT skus to query information on, regardless of ownership.
+     *     Ignored if null or if querySkuDetails is false.
+     * @param moreSubsSkus additional SUBSCRIPTIONS skus to query information on, regardless of ownership.
+     *     Ignored if null or if querySkuDetails is false.
+     * @throws IabException if a problem occurs while refreshing the inventory.
+     */
+    public Inventory queryInventory(boolean querySkuDetails, List<String> moreItemSkus,
+                                        List<String> moreSubsSkus) throws IabException {
+        checkNotDisposed();
+        checkSetupDone("queryInventory");
+        try {
+            Inventory inv = new Inventory();
+            int r = queryPurchases(inv, ITEM_TYPE_INAPP);
+            if (r != BILLING_RESPONSE_RESULT_OK) {
+                throw new IabException(r, "Error refreshing inventory (querying owned items).");
+            }
+
+            if (querySkuDetails) {
+                r = querySkuDetails(ITEM_TYPE_INAPP, inv, moreItemSkus);
+                if (r != BILLING_RESPONSE_RESULT_OK) {
+                    throw new IabException(r, "Error refreshing inventory (querying prices of items).");
+                }
+            }
+
+            // if subscriptions are supported, then also query for subscriptions
+            if (mSubscriptionsSupported) {
+                r = queryPurchases(inv, ITEM_TYPE_SUBS);
+                if (r != BILLING_RESPONSE_RESULT_OK) {
+                    throw new IabException(r, "Error refreshing inventory (querying owned subscriptions).");
+                }
+
+                if (querySkuDetails) {
+                    r = querySkuDetails(ITEM_TYPE_SUBS, inv, moreSubsSkus);
+                    if (r != BILLING_RESPONSE_RESULT_OK) {
+                        throw new IabException(r, "Error refreshing inventory (querying prices of subscriptions).");
+                    }
+                }
+            }
+
+            return inv;
+        }
+        catch (RemoteException e) {
+            throw new IabException(IABHELPER_REMOTE_EXCEPTION, "Remote exception while refreshing inventory.", e);
+        }
+        catch (JSONException e) {
+            throw new IabException(IABHELPER_BAD_RESPONSE, "Error parsing JSON response while refreshing inventory.", e);
+        }
+    }
+
+    /**
+     * Listener that notifies when an inventory query operation completes.
+     */
+    public interface QueryInventoryFinishedListener {
+        /**
+         * Called to notify that an inventory query operation completed.
+         *
+         * @param result The result of the operation.
+         * @param inv The inventory.
+         */
+        public void onQueryInventoryFinished(IabResult result, Inventory inv);
+    }
+
+
+    /**
+     * Asynchronous wrapper for inventory query. This will perform an inventory
+     * query as described in {@link #queryInventory}, but will do so asynchronously
+     * and call back the specified listener upon completion. This method is safe to
+     * call from a UI thread.
+     *
+     * @param querySkuDetails as in {@link #queryInventory}
+     * @param moreSkus as in {@link #queryInventory}
+     * @param listener The listener to notify when the refresh operation completes.
+     */
+    public void queryInventoryAsync(final boolean querySkuDetails,
+                               final List<String> moreSkus,
+                               final QueryInventoryFinishedListener listener) {
+        final Handler handler = new Handler();
+        checkNotDisposed();
+        checkSetupDone("queryInventory");
+        flagStartAsync("refresh inventory");
+        (new Thread(new Runnable() {
+            public void run() {
+                IabResult result = new IabResult(BILLING_RESPONSE_RESULT_OK, "Inventory refresh successful.");
+                Inventory inv = null;
+                try {
+                    inv = queryInventory(querySkuDetails, moreSkus);
+                }
+                catch (IabException ex) {
+                    result = ex.getResult();
+                }
+
+                flagEndAsync();
+
+                final IabResult result_f = result;
+                final Inventory inv_f = inv;
+                if (!mDisposed && listener != null) {
+                    handler.post(new Runnable() {
+                        public void run() {
+                            listener.onQueryInventoryFinished(result_f, inv_f);
+                        }
+                    });
+                }
+            }
+        })).start();
+    }
+
+    public void queryInventoryAsync(QueryInventoryFinishedListener listener) {
+        queryInventoryAsync(true, null, listener);
+    }
+
+    public void queryInventoryAsync(boolean querySkuDetails, QueryInventoryFinishedListener listener) {
+        queryInventoryAsync(querySkuDetails, null, listener);
+    }
+
+
+    /**
+     * Consumes a given in-app product. Consuming can only be done on an item
+     * that's owned, and as a result of consumption, the user will no longer own it.
+     * This method may block or take long to return. Do not call from the UI thread.
+     * For that, see {@link #consumeAsync}.
+     *
+     * @param itemInfo The PurchaseInfo that represents the item to consume.
+     * @throws IabException if there is a problem during consumption.
+     */
+    void consume(Purchase itemInfo) throws IabException {
+        checkNotDisposed();
+        checkSetupDone("consume");
+
+        if (!itemInfo.mItemType.equals(ITEM_TYPE_INAPP)) {
+            throw new IabException(IABHELPER_INVALID_CONSUMPTION,
+                    "Items of type '" + itemInfo.mItemType + "' can't be consumed.");
+        }
+
+        try {
+            String token = itemInfo.getToken();
+            String sku = itemInfo.getSku();
+            if (token == null || token.equals("")) {
+               logError("Can't consume "+ sku + ". No token.");
+               throw new IabException(IABHELPER_MISSING_TOKEN, "PurchaseInfo is missing token for sku: "
+                   + sku + " " + itemInfo);
+            }
+
+            logDebug("Consuming sku: " + sku + ", token: " + token);
+            int response = mService.consumePurchase(3, mContext.getPackageName(), token);
+            if (response == BILLING_RESPONSE_RESULT_OK) {
+               logDebug("Successfully consumed sku: " + sku);
+            }
+            else {
+               logDebug("Error consuming consuming sku " + sku + ". " + getResponseDesc(response));
+               throw new IabException(response, "Error consuming sku " + sku);
+            }
+        }
+        catch (RemoteException e) {
+            throw new IabException(IABHELPER_REMOTE_EXCEPTION, "Remote exception while consuming. PurchaseInfo: " + itemInfo, e);
+        }
+    }
+
+    /**
+     * Callback that notifies when a consumption operation finishes.
+     */
+    public interface OnConsumeFinishedListener {
+        /**
+         * Called to notify that a consumption has finished.
+         *
+         * @param purchase The purchase that was (or was to be) consumed.
+         * @param result The result of the consumption operation.
+         */
+        public void onConsumeFinished(Purchase purchase, IabResult result);
+    }
+
+    /**
+     * Callback that notifies when a multi-item consumption operation finishes.
+     */
+    public interface OnConsumeMultiFinishedListener {
+        /**
+         * Called to notify that a consumption of multiple items has finished.
+         *
+         * @param purchases The purchases that were (or were to be) consumed.
+         * @param results The results of each consumption operation, corresponding to each
+         *     sku.
+         */
+        public void onConsumeMultiFinished(List<Purchase> purchases, List<IabResult> results);
+    }
+
+    /**
+     * Asynchronous wrapper to item consumption. Works like {@link #consume}, but
+     * performs the consumption in the background and notifies completion through
+     * the provided listener. This method is safe to call from a UI thread.
+     *
+     * @param purchase The purchase to be consumed.
+     * @param listener The listener to notify when the consumption operation finishes.
+     */
+    public void consumeAsync(Purchase purchase, OnConsumeFinishedListener listener) {
+        checkNotDisposed();
+        checkSetupDone("consume");
+        List<Purchase> purchases = new ArrayList<Purchase>();
+        purchases.add(purchase);
+        consumeAsyncInternal(purchases, listener, null);
+    }
+
+    /**
+     * Same as {@link consumeAsync}, but for multiple items at once.
+     * @param purchases The list of PurchaseInfo objects representing the purchases to consume.
+     * @param listener The listener to notify when the consumption operation finishes.
+     */
+    public void consumeAsync(List<Purchase> purchases, OnConsumeMultiFinishedListener listener) {
+        checkNotDisposed();
+        checkSetupDone("consume");
+        consumeAsyncInternal(purchases, null, listener);
+    }
+
+    /**
+     * Returns a human-readable description for the given response code.
+     *
+     * @param code The response code
+     * @return A human-readable string explaining the result code.
+     *     It also includes the result code numerically.
+     */
+    public static String getResponseDesc(int code) {
+        String[] iab_msgs = ("0:OK/1:User Canceled/2:Unknown/" +
+                "3:Billing Unavailable/4:Item unavailable/" +
+                "5:Developer Error/6:Error/7:Item Already Owned/" +
+                "8:Item not owned").split("/");
+        String[] iabhelper_msgs = ("0:OK/-1001:Remote exception during initialization/" +
+                                   "-1002:Bad response received/" +
+                                   "-1003:Purchase signature verification failed/" +
+                                   "-1004:Send intent failed/" +
+                                   "-1005:User cancelled/" +
+                                   "-1006:Unknown purchase response/" +
+                                   "-1007:Missing token/" +
+                                   "-1008:Unknown error/" +
+                                   "-1009:Subscriptions not available/" +
+                                   "-1010:Invalid consumption attempt").split("/");
+
+        if (code <= IABHELPER_ERROR_BASE) {
+            int index = IABHELPER_ERROR_BASE - code;
+            if (index >= 0 && index < iabhelper_msgs.length) return iabhelper_msgs[index];
+            else return String.valueOf(code) + ":Unknown IAB Helper Error";
+        }
+        else if (code < 0 || code >= iab_msgs.length)
+            return String.valueOf(code) + ":Unknown";
+        else
+            return iab_msgs[code];
+    }
+
+
+    // Checks that setup was done; if not, throws an exception.
+    void checkSetupDone(String operation) {
+        if (!mSetupDone) {
+            logError("Illegal state for operation (" + operation + "): IAB helper is not set up.");
+            throw new IllegalStateException("IAB helper is not set up. Can't perform operation: " + operation);
+        }
+    }
+
+    // Workaround to bug where sometimes response codes come as Long instead of Integer
+    int getResponseCodeFromBundle(Bundle b) {
+        Object o = b.get(RESPONSE_CODE);
+        if (o == null) {
+            logDebug("Bundle with null response code, assuming OK (known issue)");
+            return BILLING_RESPONSE_RESULT_OK;
+        }
+        else if (o instanceof Integer) return ((Integer)o).intValue();
+        else if (o instanceof Long) return (int)((Long)o).longValue();
+        else {
+            logError("Unexpected type for bundle response code.");
+            logError(o.getClass().getName());
+            throw new RuntimeException("Unexpected type for bundle response code: " + o.getClass().getName());
+        }
+    }
+
+    // Workaround to bug where sometimes response codes come as Long instead of Integer
+    int getResponseCodeFromIntent(Intent i) {
+        Object o = i.getExtras().get(RESPONSE_CODE);
+        if (o == null) {
+            logError("Intent with no response code, assuming OK (known issue)");
+            return BILLING_RESPONSE_RESULT_OK;
+        }
+        else if (o instanceof Integer) return ((Integer)o).intValue();
+        else if (o instanceof Long) return (int)((Long)o).longValue();
+        else {
+            logError("Unexpected type for intent response code.");
+            logError(o.getClass().getName());
+            throw new RuntimeException("Unexpected type for intent response code: " + o.getClass().getName());
+        }
+    }
+
+    void flagStartAsync(String operation) {
+        if (mAsyncInProgress) throw new IllegalStateException("Can't start async operation (" +
+                operation + ") because another async operation(" + mAsyncOperation + ") is in progress.");
+        mAsyncOperation = operation;
+        mAsyncInProgress = true;
+        logDebug("Starting async operation: " + operation);
+    }
+
+    public void flagEndAsync() {
+        logDebug("Ending async operation: " + mAsyncOperation);
+        mAsyncOperation = "";
+        mAsyncInProgress = false;
+    }
+
+
+    int queryPurchases(Inventory inv, String itemType) throws JSONException, RemoteException {
+        // Query purchases
+        logDebug("Querying owned items, item type: " + itemType);
+        logDebug("Package name: " + mContext.getPackageName());
+        boolean verificationFailed = false;
+        String continueToken = null;
+
+        do {
+            logDebug("Calling getPurchases with continuation token: " + continueToken);
+            Bundle ownedItems = mService.getPurchases(3, mContext.getPackageName(),
+                    itemType, continueToken);
+
+            int response = getResponseCodeFromBundle(ownedItems);
+            logDebug("Owned items response: " + String.valueOf(response));
+            if (response != BILLING_RESPONSE_RESULT_OK) {
+                logDebug("getPurchases() failed: " + getResponseDesc(response));
+                return response;
+            }
+            if (!ownedItems.containsKey(RESPONSE_INAPP_ITEM_LIST)
+                    || !ownedItems.containsKey(RESPONSE_INAPP_PURCHASE_DATA_LIST)
+                    || !ownedItems.containsKey(RESPONSE_INAPP_SIGNATURE_LIST)) {
+                logError("Bundle returned from getPurchases() doesn't contain required fields.");
+                return IABHELPER_BAD_RESPONSE;
+            }
+
+            ArrayList<String> ownedSkus = ownedItems.getStringArrayList(
+                        RESPONSE_INAPP_ITEM_LIST);
+            ArrayList<String> purchaseDataList = ownedItems.getStringArrayList(
+                        RESPONSE_INAPP_PURCHASE_DATA_LIST);
+            ArrayList<String> signatureList = ownedItems.getStringArrayList(
+                        RESPONSE_INAPP_SIGNATURE_LIST);
+
+            for (int i = 0; i < purchaseDataList.size(); ++i) {
+                String purchaseData = purchaseDataList.get(i);
+                String signature = signatureList.get(i);
+                String sku = ownedSkus.get(i);
+                if (Security.verifyPurchase(mSignatureBase64, purchaseData, signature)) {
+                    logDebug("Sku is owned: " + sku);
+                    Purchase purchase = new Purchase(itemType, purchaseData, signature);
+
+                    if (TextUtils.isEmpty(purchase.getToken())) {
+                        logWarn("BUG: empty/null token!");
+                        logDebug("Purchase data: " + purchaseData);
+                    }
+
+                    // Record ownership and token
+                    inv.addPurchase(purchase);
+                }
+                else {
+                    logWarn("Purchase signature verification **FAILED**. Not adding item.");
+                    logDebug("   Purchase data: " + purchaseData);
+                    logDebug("   Signature: " + signature);
+                    verificationFailed = true;
+                }
+            }
+
+            continueToken = ownedItems.getString(INAPP_CONTINUATION_TOKEN);
+            logDebug("Continuation token: " + continueToken);
+        } while (!TextUtils.isEmpty(continueToken));
+
+        return verificationFailed ? IABHELPER_VERIFICATION_FAILED : BILLING_RESPONSE_RESULT_OK;
+    }
+
+    int querySkuDetails(String itemType, Inventory inv, List<String> moreSkus)
+                                throws RemoteException, JSONException {
+        logDebug("Querying SKU details.");
+        ArrayList<String> skuList = new ArrayList<String>();
+        skuList.addAll(inv.getAllOwnedSkus(itemType));
+        if (moreSkus != null) {
+            for (String sku : moreSkus) {
+                if (!skuList.contains(sku)) {
+                    skuList.add(sku);
+                }
+            }
+        }
+
+        if (skuList.size() == 0) {
+            logDebug("queryPrices: nothing to do because there are no SKUs.");
+            return BILLING_RESPONSE_RESULT_OK;
+        }
+
+        Bundle querySkus = new Bundle();
+        querySkus.putStringArrayList(GET_SKU_DETAILS_ITEM_LIST, skuList);
+        Bundle skuDetails = mService.getSkuDetails(3, mContext.getPackageName(),
+                itemType, querySkus);
+
+        if (!skuDetails.containsKey(RESPONSE_GET_SKU_DETAILS_LIST)) {
+            int response = getResponseCodeFromBundle(skuDetails);
+            if (response != BILLING_RESPONSE_RESULT_OK) {
+                logDebug("getSkuDetails() failed: " + getResponseDesc(response));
+                return response;
+            }
+            else {
+                logError("getSkuDetails() returned a bundle with neither an error nor a detail list.");
+                return IABHELPER_BAD_RESPONSE;
+            }
+        }
+
+        ArrayList<String> responseList = skuDetails.getStringArrayList(
+                RESPONSE_GET_SKU_DETAILS_LIST);
+
+        for (String thisResponse : responseList) {
+            SkuDetails d = new SkuDetails(itemType, thisResponse);
+            logDebug("Got sku details: " + d);
+            inv.addSkuDetails(d);
+        }
+        return BILLING_RESPONSE_RESULT_OK;
+    }
+
+
+    void consumeAsyncInternal(final List<Purchase> purchases,
+                              final OnConsumeFinishedListener singleListener,
+                              final OnConsumeMultiFinishedListener multiListener) {
+        final Handler handler = new Handler();
+        flagStartAsync("consume");
+        (new Thread(new Runnable() {
+            public void run() {
+                final List<IabResult> results = new ArrayList<IabResult>();
+                for (Purchase purchase : purchases) {
+                    try {
+                        consume(purchase);
+                        results.add(new IabResult(BILLING_RESPONSE_RESULT_OK, "Successful consume of sku " + purchase.getSku()));
+                    }
+                    catch (IabException ex) {
+                        results.add(ex.getResult());
+                    }
+                }
+
+                flagEndAsync();
+                if (!mDisposed && singleListener != null) {
+                    handler.post(new Runnable() {
+                        public void run() {
+                            singleListener.onConsumeFinished(purchases.get(0), results.get(0));
+                        }
+                    });
+                }
+                if (!mDisposed && multiListener != null) {
+                    handler.post(new Runnable() {
+                        public void run() {
+                            multiListener.onConsumeMultiFinished(purchases, results);
+                        }
+                    });
+                }
+            }
+        })).start();
+    }
+
+    void logDebug(String msg) {
+        if (mDebugLog) Log.d(mDebugTag, msg);
+    }
+
+    void logError(String msg) {
+        Log.e(mDebugTag, "In-app billing error: " + msg);
+    }
+
+    void logWarn(String msg) {
+        Log.w(mDebugTag, "In-app billing warning: " + msg);
+    }
+}
diff --git a/android/src/main/java/ir/appeto/myketpayment/util/IabResult.java b/android/src/main/java/ir/appeto/myketpayment/util/IabResult.java
new file mode 100644
index 0000000..0d15361
--- /dev/null
+++ b/android/src/main/java/ir/appeto/myketpayment/util/IabResult.java
@@ -0,0 +1,45 @@
+/* Copyright (c) 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package ir.appeto.myketpayment.util;
+
+/**
+ * Represents the result of an in-app billing operation.
+ * A result is composed of a response code (an integer) and possibly a
+ * message (String). You can get those by calling
+ * {@link #getResponse} and {@link #getMessage()}, respectively. You
+ * can also inquire whether a result is a success or a failure by
+ * calling {@link #isSuccess()} and {@link #isFailure()}.
+ */
+public class IabResult {
+    int mResponse;
+    String mMessage;
+
+    public IabResult(int response, String message) {
+        mResponse = response;
+        if (message == null || message.trim().length() == 0) {
+            mMessage = IabHelper.getResponseDesc(response);
+        }
+        else {
+            mMessage = message + " (response: " + IabHelper.getResponseDesc(response) + ")";
+        }
+    }
+    public int getResponse() { return mResponse; }
+    public String getMessage() { return mMessage; }
+    public boolean isSuccess() { return mResponse == IabHelper.BILLING_RESPONSE_RESULT_OK; }
+    public boolean isFailure() { return !isSuccess(); }
+    public String toString() { return "IabResult: " + getMessage(); }
+}
+
diff --git a/android/src/main/java/ir/appeto/myketpayment/util/Inventory.java b/android/src/main/java/ir/appeto/myketpayment/util/Inventory.java
new file mode 100644
index 0000000..fd19019
--- /dev/null
+++ b/android/src/main/java/ir/appeto/myketpayment/util/Inventory.java
@@ -0,0 +1,113 @@
+/* Copyright (c) 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package ir.appeto.myketpayment.util;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+/**
+ * Represents a block of information about in-app items.
+ * An Inventory is returned by such methods as {@link IabHelper#queryInventory}.
+ */
+public class Inventory {
+    Map<String, SkuDetails> mSkuMap = new HashMap<String, SkuDetails>();
+    Map<String, Purchase> mPurchaseMap = new HashMap<String, Purchase>();
+
+    Inventory() {
+    }
+
+    /**
+     * Returns the listing details for an in-app product.
+     */
+    public SkuDetails getSkuDetails(String sku) {
+        return mSkuMap.get(sku);
+    }
+
+    /**
+     * Returns purchase information for a given product, or null if there is no purchase.
+     */
+    public Purchase getPurchase(String sku) {
+        return mPurchaseMap.get(sku);
+    }
+
+    /**
+     * Returns whether or not there exists a purchase of the given product.
+     */
+    public boolean hasPurchase(String sku) {
+        return mPurchaseMap.containsKey(sku);
+    }
+
+    /**
+     * Return whether or not details about the given product are available.
+     */
+    public boolean hasDetails(String sku) {
+        return mSkuMap.containsKey(sku);
+    }
+
+    /**
+     * Erase a purchase (locally) from the inventory, given its product ID. This just
+     * modifies the Inventory object locally and has no effect on the server! This is
+     * useful when you have an existing Inventory object which you know to be up to date,
+     * and you have just consumed an item successfully, which means that erasing its
+     * purchase data from the Inventory you already have is quicker than querying for
+     * a new Inventory.
+     */
+    public void erasePurchase(String sku) {
+        if (mPurchaseMap.containsKey(sku)) mPurchaseMap.remove(sku);
+    }
+
+    /**
+     * Returns a list of all owned product IDs.
+     */
+    List<String> getAllOwnedSkus() {
+        return new ArrayList<String>(mPurchaseMap.keySet());
+    }
+
+    /**
+     * Returns a list of all owned product IDs of a given type
+     */
+    List<String> getAllOwnedSkus(String itemType) {
+        List<String> result = new ArrayList<String>();
+        for (Purchase p : mPurchaseMap.values()) {
+            if (p.getItemType().equals(itemType)) result.add(p.getSku());
+        }
+        return result;
+    }
+
+    /**
+     * Returns a list of all purchases.
+     */
+    public List<Purchase> getAllPurchases() {
+        return new ArrayList<Purchase>(mPurchaseMap.values());
+    }
+
+    /**
+     * Returns a list of all products.
+     */
+    public List<SkuDetails> getAllProducts() {
+        return new ArrayList<SkuDetails>(mSkuMap.values());
+    }
+
+    void addSkuDetails(SkuDetails d) {
+        mSkuMap.put(d.getSku(), d);
+    }
+
+    public void addPurchase(Purchase p) {
+        mPurchaseMap.put(p.getSku(), p);
+    }
+}
diff --git a/android/src/main/java/ir/appeto/myketpayment/util/Purchase.java b/android/src/main/java/ir/appeto/myketpayment/util/Purchase.java
new file mode 100644
index 0000000..2ac2966
--- /dev/null
+++ b/android/src/main/java/ir/appeto/myketpayment/util/Purchase.java
@@ -0,0 +1,63 @@
+/* Copyright (c) 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package ir.appeto.myketpayment.util;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+/**
+ * Represents an in-app billing purchase.
+ */
+public class Purchase {
+    String mItemType;  // ITEM_TYPE_INAPP or ITEM_TYPE_SUBS
+    String mOrderId;
+    String mPackageName;
+    String mSku;
+    long mPurchaseTime;
+    int mPurchaseState;
+    String mDeveloperPayload;
+    String mToken;
+    String mOriginalJson;
+    String mSignature;
+
+    public Purchase(String itemType, String jsonPurchaseInfo, String signature) throws JSONException {
+        mItemType = itemType;
+        mOriginalJson = jsonPurchaseInfo;
+        JSONObject o = new JSONObject(mOriginalJson);
+        mOrderId = o.optString("orderId");
+        mPackageName = o.optString("packageName");
+        mSku = o.optString("productId");
+        mPurchaseTime = o.optLong("purchaseTime");
+        mPurchaseState = o.optInt("purchaseState");
+        mDeveloperPayload = o.optString("developerPayload");
+        mToken = o.optString("token", o.optString("purchaseToken"));
+        mSignature = signature;
+    }
+
+    public String getItemType() { return mItemType; }
+    public String getOrderId() { return mOrderId; }
+    public String getPackageName() { return mPackageName; }
+    public String getSku() { return mSku; }
+    public long getPurchaseTime() { return mPurchaseTime; }
+    public int getPurchaseState() { return mPurchaseState; }
+    public String getDeveloperPayload() { return mDeveloperPayload; }
+    public String getToken() { return mToken; }
+    public String getOriginalJson() { return mOriginalJson; }
+    public String getSignature() { return mSignature; }
+
+    @Override
+    public String toString() { return "PurchaseInfo(type:" + mItemType + "):" + mOriginalJson; }
+}
diff --git a/android/src/main/java/ir/appeto/myketpayment/util/Security.java b/android/src/main/java/ir/appeto/myketpayment/util/Security.java
new file mode 100644
index 0000000..a6f1dd3
--- /dev/null
+++ b/android/src/main/java/ir/appeto/myketpayment/util/Security.java
@@ -0,0 +1,123 @@
+/* Copyright (c) 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package ir.appeto.myketpayment.util;
+
+import android.text.TextUtils;
+import android.util.Log;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+
+import java.security.InvalidKeyException;
+import java.security.KeyFactory;
+import java.security.NoSuchAlgorithmException;
+import java.security.PublicKey;
+import java.security.Signature;
+import java.security.SignatureException;
+import java.security.spec.InvalidKeySpecException;
+import java.security.spec.X509EncodedKeySpec;
+
+/**
+ * Security-related methods. For a secure implementation, all of this code
+ * should be implemented on a server that communicates with the
+ * application on the device. For the sake of simplicity and clarity of this
+ * example, this code is included here and is executed on the device. If you
+ * must verify the purchases on the phone, you should obfuscate this code to
+ * make it harder for an attacker to replace the code with stubs that treat all
+ * purchases as verified.
+ */
+public class Security {
+    private static final String TAG = "IABUtil/Security";
+
+    private static final String KEY_FACTORY_ALGORITHM = "RSA";
+    private static final String SIGNATURE_ALGORITHM = "SHA1withRSA";
+
+    /**
+     * Verifies that the data was signed with the given signature, and returns
+     * the verified purchase. The data is in JSON format and signed
+     * with a private key. The data also contains the {@link PurchaseState}
+     * and product ID of the purchase.
+     * @param base64PublicKey the base64-encoded public key to use for verifying.
+     * @param signedData the signed JSON string (signed, not encrypted)
+     * @param signature the signature for the data, signed with the private key
+     */
+    public static boolean verifyPurchase(String base64PublicKey, String signedData, String signature) {
+        if (TextUtils.isEmpty(signedData) || TextUtils.isEmpty(base64PublicKey) ||
+                TextUtils.isEmpty(signature)) {
+            Log.e(TAG, "Purchase verification failed: missing data.");
+            return false;
+        }
+
+        PublicKey key = Security.generatePublicKey(base64PublicKey);
+        return Security.verify(key, signedData, signature);
+    }
+
+    /**
+     * Generates a PublicKey instance from a string containing the
+     * Base64-encoded public key.
+     *
+     * @param encodedPublicKey Base64-encoded public key
+     * @throws IllegalArgumentException if encodedPublicKey is invalid
+     */
+    public static PublicKey generatePublicKey(String encodedPublicKey) {
+        try {
+            byte[] decodedKey = Base64.decode(encodedPublicKey);
+            KeyFactory keyFactory = KeyFactory.getInstance(KEY_FACTORY_ALGORITHM);
+            return keyFactory.generatePublic(new X509EncodedKeySpec(decodedKey));
+        } catch (NoSuchAlgorithmException e) {
+            throw new RuntimeException(e);
+        } catch (InvalidKeySpecException e) {
+            Log.e(TAG, "Invalid key specification.");
+            throw new IllegalArgumentException(e);
+        } catch (Base64DecoderException e) {
+            Log.e(TAG, "Base64 decoding failed.");
+            throw new IllegalArgumentException(e);
+        }
+    }
+
+    /**
+     * Verifies that the signature from the server matches the computed
+     * signature on the data.  Returns true if the data is correctly signed.
+     *
+     * @param publicKey public key associated with the developer account
+     * @param signedData signed data from server
+     * @param signature server signature
+     * @return true if the data and signature match
+     */
+    public static boolean verify(PublicKey publicKey, String signedData, String signature) {
+        Signature sig;
+        try {
+            sig = Signature.getInstance(SIGNATURE_ALGORITHM);
+            sig.initVerify(publicKey);
+            sig.update(signedData.getBytes());
+            if (!sig.verify(Base64.decode(signature))) {
+                Log.e(TAG, "Signature verification failed.");
+                return false;
+            }
+            return true;
+        } catch (NoSuchAlgorithmException e) {
+            Log.e(TAG, "NoSuchAlgorithmException.");
+        } catch (InvalidKeyException e) {
+            Log.e(TAG, "Invalid key specification.");
+        } catch (SignatureException e) {
+            Log.e(TAG, "Signature exception.");
+        } catch (Base64DecoderException e) {
+            Log.e(TAG, "Base64 decoding failed.");
+        }
+        return false;
+    }
+}
diff --git a/android/src/main/java/ir/appeto/myketpayment/util/SkuDetails.java b/android/src/main/java/ir/appeto/myketpayment/util/SkuDetails.java
new file mode 100644
index 0000000..866ee09
--- /dev/null
+++ b/android/src/main/java/ir/appeto/myketpayment/util/SkuDetails.java
@@ -0,0 +1,77 @@
+/* Copyright (c) 2012 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package ir.appeto.myketpayment.util;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+/**
+ * Represents an in-app product's listing details.
+ */
+public class SkuDetails {
+    String mItemType;
+    String mSku;
+    String mType;
+    String mPrice;
+    String mTitle;
+    String mDescription;
+    String mJson;
+
+    public SkuDetails(String jsonSkuDetails) throws JSONException {
+        this(IabHelper.ITEM_TYPE_INAPP, jsonSkuDetails);
+    }
+
+    public SkuDetails(String itemType, String jsonSkuDetails) throws JSONException {
+        mItemType = itemType;
+        mJson = jsonSkuDetails;
+        JSONObject o = new JSONObject(mJson);
+        mSku = o.optString("productId");
+        mType = o.optString("type");
+        mPrice = o.optString("price");
+        mTitle = o.optString("title");
+        mDescription = o.optString("description");
+    }
+
+    public String getSku() {
+        return mSku;
+    }
+
+    public String getType() {
+        return mType;
+    }
+
+    public String getPrice() {
+        return mPrice;
+    }
+
+    public String getTitle() {
+        return mTitle;
+    }
+
+    public String getDescription() {
+        return mDescription;
+    }
+
+    @Override
+    public String toString() {
+        return "SkuDetails:" + mJson;
+    }
+
+    public JSONObject toJson() throws JSONException {
+        JSONObject jsonObj = new JSONObject(mJson);
+        return jsonObj;
+    }
+}
diff --git a/example/.gitignore b/example/.gitignore
new file mode 100644
index 0000000..f3c2053
--- /dev/null
+++ b/example/.gitignore
@@ -0,0 +1,44 @@
+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+**/ios/Flutter/.last_build_id
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
+.packages
+.pub-cache/
+.pub/
+/build/
+
+# Web related
+lib/generated_plugin_registrant.dart
+
+# Symbolication related
+app.*.symbols
+
+# Obfuscation related
+app.*.map.json
+
+# Exceptions to above rules.
+!/packages/flutter_tools/test/data/dart_dependencies_test/**/.packages
diff --git a/example/.metadata b/example/.metadata
new file mode 100644
index 0000000..a6edc17
--- /dev/null
+++ b/example/.metadata
@@ -0,0 +1,10 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: c969b8af7b48bd0f4e3329ed3f112f41136d8bcd
+  channel: master
+
+project_type: app
diff --git a/example/README.md b/example/README.md
new file mode 100644
index 0000000..0533d61
--- /dev/null
+++ b/example/README.md
@@ -0,0 +1,16 @@
+# myketpayment_example
+
+Demonstrates how to use the myketpayment plugin.
+
+## Getting Started
+
+This project is a starting point for a Flutter application.
+
+A few resources to get you started if this is your first Flutter project:
+
+- [Lab: Write your first Flutter app](https://flutter.dev/docs/get-started/codelab)
+- [Cookbook: Useful Flutter samples](https://flutter.dev/docs/cookbook)
+
+For help getting started with Flutter, view our
+[online documentation](https://flutter.dev/docs), which offers tutorials,
+samples, guidance on mobile development, and a full API reference.
diff --git a/example/android/.gitignore b/example/android/.gitignore
new file mode 100644
index 0000000..bc2100d
--- /dev/null
+++ b/example/android/.gitignore
@@ -0,0 +1,7 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
diff --git a/example/android/app/build.gradle b/example/android/app/build.gradle
new file mode 100644
index 0000000..e27e11f
--- /dev/null
+++ b/example/android/app/build.gradle
@@ -0,0 +1,54 @@
+def localProperties = new Properties()
+def localPropertiesFile = rootProject.file('local.properties')
+if (localPropertiesFile.exists()) {
+    localPropertiesFile.withReader('UTF-8') { reader ->
+        localProperties.load(reader)
+    }
+}
+
+def flutterRoot = localProperties.getProperty('flutter.sdk')
+if (flutterRoot == null) {
+    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
+}
+
+def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
+if (flutterVersionCode == null) {
+    flutterVersionCode = '1'
+}
+
+def flutterVersionName = localProperties.getProperty('flutter.versionName')
+if (flutterVersionName == null) {
+    flutterVersionName = '1.0'
+}
+
+apply plugin: 'com.android.application'
+apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
+
+android {
+    compileSdkVersion 28
+
+    lintOptions {
+        disable 'InvalidPackage'
+    }
+
+    defaultConfig {
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId "ir.appeto.myketpayment_example"
+        minSdkVersion 16
+        targetSdkVersion 28
+        versionCode flutterVersionCode.toInteger()
+        versionName flutterVersionName
+    }
+
+    buildTypes {
+        release {
+            // TODO: Add your own signing config for the release build.
+            // Signing with the debug keys for now, so `flutter run --release` works.
+            signingConfig signingConfigs.debug
+        }
+    }
+}
+
+flutter {
+    source '../..'
+}
diff --git a/example/android/app/src/debug/AndroidManifest.xml b/example/android/app/src/debug/AndroidManifest.xml
new file mode 100644
index 0000000..b55fb61
--- /dev/null
+++ b/example/android/app/src/debug/AndroidManifest.xml
@@ -0,0 +1,9 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="ir.appeto.myketpayment_example">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="ir.mservices.market.BILLING" />
+
+</manifest>
diff --git a/example/android/app/src/main/AndroidManifest.xml b/example/android/app/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..95c0677
--- /dev/null
+++ b/example/android/app/src/main/AndroidManifest.xml
@@ -0,0 +1,52 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="ir.appeto.myketpayment_example">
+    <!-- io.flutter.app.FlutterApplication is an android.app.Application that
+         calls FlutterMain.startInitialization(this); in its onCreate method.
+         In most cases you can leave this as-is, but you if you want to provide
+         additional functionality it is fine to subclass or reimplement
+         FlutterApplication and put your custom class here. -->
+
+    <uses-permission android:name="ir.mservices.market.BILLING" />
+
+    <application
+        android:name="io.flutter.app.FlutterApplication"
+        android:label="myketpayment_example"
+        android:icon="@mipmap/ic_launcher">
+        <activity
+            android:name=".MainActivity"
+            android:launchMode="singleTop"
+            android:theme="@style/LaunchTheme"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize">
+            <!-- Specifies an Android theme to apply to this Activity as soon as
+                 the Android process has started. This theme is visible to the user
+                 while the Flutter UI initializes. After that, this theme continues
+                 to determine the Window background behind the Flutter UI. -->
+            <meta-data
+              android:name="io.flutter.embedding.android.NormalTheme"
+              android:resource="@style/NormalTheme"
+              />
+            <!-- Displays an Android View that continues showing the launch screen
+                 Drawable until Flutter paints its first frame, then this splash
+                 screen fades out. A splash screen is useful to avoid any visual
+                 gap between the end of Android's launch screen and the painting of
+                 Flutter's first frame. -->
+            <meta-data
+              android:name="io.flutter.embedding.android.SplashScreenDrawable"
+              android:resource="@drawable/launch_background"
+              />
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+        <!-- Don't delete the meta-data below.
+             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
+        <meta-data
+            android:name="flutterEmbedding"
+            android:value="2" />
+    </application>
+
+
+</manifest>
diff --git a/example/android/app/src/main/java/ir/appeto/myketpayment_example/MainActivity.java b/example/android/app/src/main/java/ir/appeto/myketpayment_example/MainActivity.java
new file mode 100644
index 0000000..79cf15c
--- /dev/null
+++ b/example/android/app/src/main/java/ir/appeto/myketpayment_example/MainActivity.java
@@ -0,0 +1,6 @@
+package ir.appeto.myketpayment_example;
+
+import io.flutter.embedding.android.FlutterActivity;
+
+public class MainActivity extends FlutterActivity {
+}
diff --git a/example/android/app/src/main/res/drawable/launch_background.xml b/example/android/app/src/main/res/drawable/launch_background.xml
new file mode 100644
index 0000000..304732f
--- /dev/null
+++ b/example/android/app/src/main/res/drawable/launch_background.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@android:color/white" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>
diff --git a/example/android/app/src/main/res/mipmap-hdpi/ic_launcher.png b/example/android/app/src/main/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 0000000..db77bb4
Binary files /dev/null and b/example/android/app/src/main/res/mipmap-hdpi/ic_launcher.png differ
diff --git a/example/android/app/src/main/res/mipmap-mdpi/ic_launcher.png b/example/android/app/src/main/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 0000000..17987b7
Binary files /dev/null and b/example/android/app/src/main/res/mipmap-mdpi/ic_launcher.png differ
diff --git a/example/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png b/example/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 0000000..09d4391
Binary files /dev/null and b/example/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png differ
diff --git a/example/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png b/example/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 0000000..d5f1c8d
Binary files /dev/null and b/example/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png differ
diff --git a/example/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/example/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 0000000..4d6372e
Binary files /dev/null and b/example/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png differ
diff --git a/example/android/app/src/main/res/values/styles.xml b/example/android/app/src/main/res/values/styles.xml
new file mode 100644
index 0000000..1f83a33
--- /dev/null
+++ b/example/android/app/src/main/res/values/styles.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             Flutter draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+         
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <item name="android:windowBackground">@android:color/white</item>
+    </style>
+</resources>
diff --git a/example/android/app/src/profile/AndroidManifest.xml b/example/android/app/src/profile/AndroidManifest.xml
new file mode 100644
index 0000000..54a41d2
--- /dev/null
+++ b/example/android/app/src/profile/AndroidManifest.xml
@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="ir.appeto.myketpayment_example">
+    <!-- Flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>
diff --git a/example/android/build.gradle b/example/android/build.gradle
new file mode 100644
index 0000000..e0d7ae2
--- /dev/null
+++ b/example/android/build.gradle
@@ -0,0 +1,29 @@
+buildscript {
+    repositories {
+        google()
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.5.0'
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+    }
+}
+
+rootProject.buildDir = '../build'
+subprojects {
+    project.buildDir = "${rootProject.buildDir}/${project.name}"
+}
+subprojects {
+    project.evaluationDependsOn(':app')
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}
diff --git a/example/android/gradle.properties b/example/android/gradle.properties
new file mode 100644
index 0000000..38c8d45
--- /dev/null
+++ b/example/android/gradle.properties
@@ -0,0 +1,4 @@
+org.gradle.jvmargs=-Xmx1536M
+android.enableR8=true
+android.useAndroidX=true
+android.enableJetifier=true
diff --git a/example/android/gradle/wrapper/gradle-wrapper.properties b/example/android/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..296b146
--- /dev/null
+++ b/example/android/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Fri Jun 23 08:50:38 CEST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.2-all.zip
diff --git a/example/android/settings.gradle b/example/android/settings.gradle
new file mode 100644
index 0000000..d3b6a40
--- /dev/null
+++ b/example/android/settings.gradle
@@ -0,0 +1,15 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+include ':app'
+
+def localPropertiesFile = new File(rootProject.projectDir, "local.properties")
+def properties = new Properties()
+
+assert localPropertiesFile.exists()
+localPropertiesFile.withReader("UTF-8") { reader -> properties.load(reader) }
+
+def flutterSdkPath = properties.getProperty("flutter.sdk")
+assert flutterSdkPath != null, "flutter.sdk not set in local.properties"
+apply from: "$flutterSdkPath/packages/flutter_tools/gradle/app_plugin_loader.gradle"
diff --git a/example/ios/.gitignore b/example/ios/.gitignore
new file mode 100644
index 0000000..e96ef60
--- /dev/null
+++ b/example/ios/.gitignore
@@ -0,0 +1,32 @@
+*.mode1v3
+*.mode2v3
+*.moved-aside
+*.pbxuser
+*.perspectivev3
+**/*sync/
+.sconsign.dblite
+.tags*
+**/.vagrant/
+**/DerivedData/
+Icon?
+**/Pods/
+**/.symlinks/
+profile
+xcuserdata
+**/.generated/
+Flutter/App.framework
+Flutter/Flutter.framework
+Flutter/Flutter.podspec
+Flutter/Generated.xcconfig
+Flutter/app.flx
+Flutter/app.zip
+Flutter/flutter_assets/
+Flutter/flutter_export_environment.sh
+ServiceDefinitions.json
+Runner/GeneratedPluginRegistrant.*
+
+# Exceptions to above rules.
+!default.mode1v3
+!default.mode2v3
+!default.pbxuser
+!default.perspectivev3
diff --git a/example/ios/Flutter/AppFrameworkInfo.plist b/example/ios/Flutter/AppFrameworkInfo.plist
new file mode 100644
index 0000000..6b4c0f7
--- /dev/null
+++ b/example/ios/Flutter/AppFrameworkInfo.plist
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+  <key>CFBundleDevelopmentRegion</key>
+  <string>$(DEVELOPMENT_LANGUAGE)</string>
+  <key>CFBundleExecutable</key>
+  <string>App</string>
+  <key>CFBundleIdentifier</key>
+  <string>io.flutter.flutter.app</string>
+  <key>CFBundleInfoDictionaryVersion</key>
+  <string>6.0</string>
+  <key>CFBundleName</key>
+  <string>App</string>
+  <key>CFBundlePackageType</key>
+  <string>FMWK</string>
+  <key>CFBundleShortVersionString</key>
+  <string>1.0</string>
+  <key>CFBundleSignature</key>
+  <string>????</string>
+  <key>CFBundleVersion</key>
+  <string>1.0</string>
+  <key>MinimumOSVersion</key>
+  <string>8.0</string>
+</dict>
+</plist>
diff --git a/example/ios/Flutter/Debug.xcconfig b/example/ios/Flutter/Debug.xcconfig
new file mode 100644
index 0000000..592ceee
--- /dev/null
+++ b/example/ios/Flutter/Debug.xcconfig
@@ -0,0 +1 @@
+#include "Generated.xcconfig"
diff --git a/example/ios/Flutter/Release.xcconfig b/example/ios/Flutter/Release.xcconfig
new file mode 100644
index 0000000..592ceee
--- /dev/null
+++ b/example/ios/Flutter/Release.xcconfig
@@ -0,0 +1 @@
+#include "Generated.xcconfig"
diff --git a/example/ios/Runner.xcodeproj/project.pbxproj b/example/ios/Runner.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..3957756
--- /dev/null
+++ b/example/ios/Runner.xcodeproj/project.pbxproj
@@ -0,0 +1,496 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 46;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		1498D2341E8E89220040F4C2 /* GeneratedPluginRegistrant.m in Sources */ = {isa = PBXBuildFile; fileRef = 1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */; };
+		3B3967161E833CAA004F5970 /* AppFrameworkInfo.plist in Resources */ = {isa = PBXBuildFile; fileRef = 3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */; };
+		978B8F6F1D3862AE00F588F7 /* AppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 7AFFD8EE1D35381100E5BB4D /* AppDelegate.m */; };
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+		97C146FC1CF9000F007C117D /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FA1CF9000F007C117D /* Main.storyboard */; };
+		97C146FE1CF9000F007C117D /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FD1CF9000F007C117D /* Assets.xcassets */; };
+		97C147011CF9000F007C117D /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXCopyFilesBuildPhase section */
+		9705A1C41CF9048500538489 /* Embed Frameworks */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 2147483647;
+			dstPath = "";
+			dstSubfolderSpec = 10;
+			files = (
+			);
+			name = "Embed Frameworks";
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXCopyFilesBuildPhase section */
+
+/* Begin PBXFileReference section */
+		1498D2321E8E86230040F4C2 /* GeneratedPluginRegistrant.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = GeneratedPluginRegistrant.h; sourceTree = "<group>"; };
+		1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = GeneratedPluginRegistrant.m; sourceTree = "<group>"; };
+		3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; name = AppFrameworkInfo.plist; path = Flutter/AppFrameworkInfo.plist; sourceTree = "<group>"; };
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+		9740EEB21CF90195004384FC /* Debug.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Debug.xcconfig; path = Flutter/Debug.xcconfig; sourceTree = "<group>"; };
+		9740EEB31CF90195004384FC /* Generated.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Generated.xcconfig; path = Flutter/Generated.xcconfig; sourceTree = "<group>"; };
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+		97C146FB1CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/Main.storyboard; sourceTree = "<group>"; };
+		97C146FD1CF9000F007C117D /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
+		97C147001CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
+		97C147021CF9000F007C117D /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		97C146EB1CF9000F007C117D /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		9740EEB11CF90186004384FC /* Flutter */ = {
+			isa = PBXGroup;
+			children = (
+				3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */,
+				9740EEB21CF90195004384FC /* Debug.xcconfig */,
+				7AFA3C8E1D35360C0083082E /* Release.xcconfig */,
+				9740EEB31CF90195004384FC /* Generated.xcconfig */,
+			);
+			name = Flutter;
+			sourceTree = "<group>";
+		};
+		97C146E51CF9000F007C117D = {
+			isa = PBXGroup;
+			children = (
+				9740EEB11CF90186004384FC /* Flutter */,
+				97C146F01CF9000F007C117D /* Runner */,
+				97C146EF1CF9000F007C117D /* Products */,
+				CF3B75C9A7D2FA2A4C99F110 /* Frameworks */,
+			);
+			sourceTree = "<group>";
+		};
+		97C146EF1CF9000F007C117D /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				97C146EE1CF9000F007C117D /* Runner.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		97C146F01CF9000F007C117D /* Runner */ = {
+			isa = PBXGroup;
+			children = (
+				7AFFD8ED1D35381100E5BB4D /* AppDelegate.h */,
+				7AFFD8EE1D35381100E5BB4D /* AppDelegate.m */,
+				97C146FA1CF9000F007C117D /* Main.storyboard */,
+				97C146FD1CF9000F007C117D /* Assets.xcassets */,
+				97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */,
+				97C147021CF9000F007C117D /* Info.plist */,
+				97C146F11CF9000F007C117D /* Supporting Files */,
+				1498D2321E8E86230040F4C2 /* GeneratedPluginRegistrant.h */,
+				1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */,
+			);
+			path = Runner;
+			sourceTree = "<group>";
+		};
+		97C146F11CF9000F007C117D /* Supporting Files */ = {
+			isa = PBXGroup;
+			children = (
+				97C146F21CF9000F007C117D /* main.m */,
+			);
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+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
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+			isa = PBXNativeTarget;
+			buildConfigurationList = 97C147051CF9000F007C117D /* Build configuration list for PBXNativeTarget "Runner" */;
+			buildPhases = (
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+				97C146EA1CF9000F007C117D /* Sources */,
+				97C146EB1CF9000F007C117D /* Frameworks */,
+				97C146EC1CF9000F007C117D /* Resources */,
+				9705A1C41CF9048500538489 /* Embed Frameworks */,
+				3B06AD1E1E4923F5004D2608 /* Thin Binary */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = Runner;
+			productName = Runner;
+			productReference = 97C146EE1CF9000F007C117D /* Runner.app */;
+			productType = "com.apple.product-type.application";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
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+			isa = PBXProject;
+			attributes = {
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+				ORGANIZATIONNAME = "";
+				TargetAttributes = {
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+			buildConfigurationList = 97C146E91CF9000F007C117D /* Build configuration list for PBXProject "Runner" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
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+			knownRegions = (
+				en,
+				Base,
+			);
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+			productRefGroup = 97C146EF1CF9000F007C117D /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				97C146ED1CF9000F007C117D /* Runner */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXResourcesBuildPhase section */
+		97C146EC1CF9000F007C117D /* Resources */ = {
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+			files = (
+				97C147011CF9000F007C117D /* LaunchScreen.storyboard in Resources */,
+				3B3967161E833CAA004F5970 /* AppFrameworkInfo.plist in Resources */,
+				97C146FE1CF9000F007C117D /* Assets.xcassets in Resources */,
+				97C146FC1CF9000F007C117D /* Main.storyboard in Resources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXResourcesBuildPhase section */
+
+/* Begin PBXShellScriptBuildPhase section */
+		3B06AD1E1E4923F5004D2608 /* Thin Binary */ = {
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+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputPaths = (
+			);
+			name = "Thin Binary";
+			outputPaths = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "/bin/sh \"$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh\" embed_and_thin";
+		};
+		9740EEB61CF901F6004384FC /* Run Script */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputPaths = (
+			);
+			name = "Run Script";
+			outputPaths = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "/bin/sh \"$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh\" build";
+		};
+/* End PBXShellScriptBuildPhase section */
+
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+			files = (
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+				97C146F31CF9000F007C117D /* main.m in Sources */,
+				1498D2341E8E89220040F4C2 /* GeneratedPluginRegistrant.m in Sources */,
+			);
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+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		97C146FA1CF9000F007C117D /* Main.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				97C146FB1CF9000F007C117D /* Base */,
+			);
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+			sourceTree = "<group>";
+		};
+		97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				97C147001CF9000F007C117D /* Base */,
+			);
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+			sourceTree = "<group>";
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+/* End PBXVariantGroup section */
+
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+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
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+				GCC_PREPROCESSOR_DEFINITIONS = (
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+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
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+				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
+				MTL_ENABLE_DEBUG_INFO = YES;
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+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = iphoneos;
+				SUPPORTED_PLATFORMS = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		97C147061CF9000F007C117D /* Debug */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 9740EEB21CF90195004384FC /* Debug.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
+				ENABLE_BITCODE = NO;
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)/Flutter",
+				);
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
+				LIBRARY_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)/Flutter",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = ir.appeto.myketpaymentExample;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				VERSIONING_SYSTEM = "apple-generic";
+			};
+			name = Debug;
+		};
+		97C147071CF9000F007C117D /* Release */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CURRENT_PROJECT_VERSION = "$(FLUTTER_BUILD_NUMBER)";
+				ENABLE_BITCODE = NO;
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)/Flutter",
+				);
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
+				LIBRARY_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)/Flutter",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = ir.appeto.myketpaymentExample;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				VERSIONING_SYSTEM = "apple-generic";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		97C146E91CF9000F007C117D /* Build configuration list for PBXProject "Runner" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				97C147031CF9000F007C117D /* Debug */,
+				97C147041CF9000F007C117D /* Release */,
+				249021D3217E4FDB00AE95B9 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		97C147051CF9000F007C117D /* Build configuration list for PBXNativeTarget "Runner" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				97C147061CF9000F007C117D /* Debug */,
+				97C147071CF9000F007C117D /* Release */,
+				249021D4217E4FDB00AE95B9 /* Profile */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 97C146E61CF9000F007C117D /* Project object */;
+}
diff --git a/example/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/example/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..1d526a1
--- /dev/null
+++ b/example/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:Runner.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git a/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings b/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
new file mode 100644
index 0000000..f9b0d7c
--- /dev/null
+++ b/example/ios/Runner.xcodeproj/project.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>PreviewsEnabled</key>
+	<false/>
+</dict>
+</plist>
diff --git a/example/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme b/example/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
new file mode 100644
index 0000000..a28140c
--- /dev/null
+++ b/example/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme
@@ -0,0 +1,91 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "1020"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+               BuildableName = "Runner.app"
+               BlueprintName = "Runner"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+      </Testables>
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Profile"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>
diff --git a/example/ios/Runner.xcworkspace/contents.xcworkspacedata b/example/ios/Runner.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..1d526a1
--- /dev/null
+++ b/example/ios/Runner.xcworkspace/contents.xcworkspacedata
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:Runner.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git a/example/ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/example/ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/example/ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/example/ios/Runner.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings b/example/ios/Runner.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
new file mode 100644
index 0000000..f9b0d7c
--- /dev/null
+++ b/example/ios/Runner.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>PreviewsEnabled</key>
+	<false/>
+</dict>
+</plist>
diff --git a/example/ios/Runner/AppDelegate.h b/example/ios/Runner/AppDelegate.h
new file mode 100644
index 0000000..36e21bb
--- /dev/null
+++ b/example/ios/Runner/AppDelegate.h
@@ -0,0 +1,6 @@
+#import <Flutter/Flutter.h>
+#import <UIKit/UIKit.h>
+
+@interface AppDelegate : FlutterAppDelegate
+
+@end
diff --git a/example/ios/Runner/AppDelegate.m b/example/ios/Runner/AppDelegate.m
new file mode 100644
index 0000000..70e8393
--- /dev/null
+++ b/example/ios/Runner/AppDelegate.m
@@ -0,0 +1,13 @@
+#import "AppDelegate.h"
+#import "GeneratedPluginRegistrant.h"
+
+@implementation AppDelegate
+
+- (BOOL)application:(UIApplication *)application
+    didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
+  [GeneratedPluginRegistrant registerWithRegistry:self];
+  // Override point for customization after application launch.
+  return [super application:application didFinishLaunchingWithOptions:launchOptions];
+}
+
+@end
diff --git a/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
new file mode 100644
index 0000000..d36b1fa
--- /dev/null
+++ b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
@@ -0,0 +1,122 @@
+{
+  "images" : [
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "83.5x83.5",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-83.5x83.5@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "1024x1024",
+      "idiom" : "ios-marketing",
+      "filename" : "Icon-App-1024x1024@1x.png",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
diff --git a/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-1024x1024@1x.png
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diff --git a/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@2x.png b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-76x76@2x.png
new file mode 100644
index 0000000..6a84f41
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diff --git a/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-83.5x83.5@2x.png b/example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Icon-App-83.5x83.5@2x.png
new file mode 100644
index 0000000..d0e1f58
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diff --git a/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json b/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json
new file mode 100644
index 0000000..0bedcf2
--- /dev/null
+++ b/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json
@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@3x.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}
diff --git a/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png b/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage.png
new file mode 100644
index 0000000..9da19ea
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diff --git a/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png b/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@2x.png
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index 0000000..9da19ea
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diff --git a/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png b/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/LaunchImage@3x.png
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diff --git a/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md b/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md
new file mode 100644
index 0000000..89c2725
--- /dev/null
+++ b/example/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md
@@ -0,0 +1,5 @@
+# Launch Screen Assets
+
+You can customize the launch screen with your own desired assets by replacing the image files in this directory.
+
+You can also do it by opening your Flutter project's Xcode project with `open ios/Runner.xcworkspace`, selecting `Runner/Assets.xcassets` in the Project Navigator and dropping in the desired images.
\ No newline at end of file
diff --git a/example/ios/Runner/Base.lproj/LaunchScreen.storyboard b/example/ios/Runner/Base.lproj/LaunchScreen.storyboard
new file mode 100644
index 0000000..f2e259c
--- /dev/null
+++ b/example/ios/Runner/Base.lproj/LaunchScreen.storyboard
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="12121" systemVersion="16G29" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="12089"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="Ydg-fD-yQy"/>
+                        <viewControllerLayoutGuide type="bottom" id="xbc-2k-c8Z"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <imageView opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" image="LaunchImage" translatesAutoresizingMaskIntoConstraints="NO" id="YRO-k0-Ey4">
+                            </imageView>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <constraints>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerX" secondItem="Ze5-6b-2t3" secondAttribute="centerX" id="1a2-6s-vTC"/>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerY" secondItem="Ze5-6b-2t3" secondAttribute="centerY" id="4X2-HB-R7a"/>
+                        </constraints>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+    <resources>
+        <image name="LaunchImage" width="168" height="185"/>
+    </resources>
+</document>
diff --git a/example/ios/Runner/Base.lproj/Main.storyboard b/example/ios/Runner/Base.lproj/Main.storyboard
new file mode 100644
index 0000000..f3c2851
--- /dev/null
+++ b/example/ios/Runner/Base.lproj/Main.storyboard
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="10117" systemVersion="15F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="BYZ-38-t0r">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="10085"/>
+    </dependencies>
+    <scenes>
+        <!--Flutter View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="FlutterViewController" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="y3c-jy-aDJ"/>
+                        <viewControllerLayoutGuide type="bottom" id="wfy-db-euE"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+        </scene>
+    </scenes>
+</document>
diff --git a/example/ios/Runner/Info.plist b/example/ios/Runner/Info.plist
new file mode 100644
index 0000000..3ca07f0
--- /dev/null
+++ b/example/ios/Runner/Info.plist
@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>myketpayment_example</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>$(FLUTTER_BUILD_NAME)</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>$(FLUTTER_BUILD_NUMBER)</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UIViewControllerBasedStatusBarAppearance</key>
+	<false/>
+</dict>
+</plist>
diff --git a/example/ios/Runner/main.m b/example/ios/Runner/main.m
new file mode 100644
index 0000000..dff6597
--- /dev/null
+++ b/example/ios/Runner/main.m
@@ -0,0 +1,9 @@
+#import <Flutter/Flutter.h>
+#import <UIKit/UIKit.h>
+#import "AppDelegate.h"
+
+int main(int argc, char* argv[]) {
+  @autoreleasepool {
+    return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
+  }
+}
diff --git a/example/lib/main.dart b/example/lib/main.dart
new file mode 100644
index 0000000..5e09e61
--- /dev/null
+++ b/example/lib/main.dart
@@ -0,0 +1,87 @@
+import 'package:flutter/material.dart';
+import 'dart:async';
+
+import 'package:flutter/services.dart';
+import 'package:myketpayment/myketpayment.dart';
+
+void main() {
+  runApp(MyApp());
+}
+
+class MyApp extends StatefulWidget {
+  @override
+  _MyAppState createState() => _MyAppState();
+}
+
+class _MyAppState extends State<MyApp> {
+  String _platformVersion = 'Unknown';
+
+  @override
+  void initState() {
+    super.initState();
+  }
+
+  final String rsa = "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCPBy3LGWCeF5AwPIVdS6DvkTHkS9qa45vNhpZiJTjELjG1VLa9a8nAsm4E6qqKoQ6wh5Cuq3T9NqdtkTwWtLgVYvTl6JQlkN/2XfabkWcn58f14mvrkVv8qHUFr0m/kqz9sp/fk1KvS16BjVy/M3ScuvLr0ONJ+HS5PQvHUTdDLQIDAQAB";
+  bool setup = false;
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      home: Scaffold(
+        appBar: AppBar(
+          title: const Text('Plugin example app'),
+        ),
+        body: Center(
+          child: Column(
+            children: [
+              Text('myket for appeto'),
+              SizedBox(height: 20,),
+              FlatButton(
+                child: Text("buy and consume"),
+                onPressed: () async {
+                  if(!setup) {
+                    setup = await Myketpayment.setup(rsa);
+                  }
+                  print("setup: $setup");
+                  if(setup) {
+                    final result = await Myketpayment.buy(sku: 'myflutter', consume: true);
+                    afterPurchase(result);
+                  }
+                  else {
+                    print("can not connect to myket");
+                  }
+                },
+              ),
+              SizedBox(height: 20,),
+              FlatButton(
+                child: Text("buy unlimit"),
+                onPressed: () async {
+                  if(!setup) {
+                    setup = await Myketpayment.setup(rsa);
+                  }
+                  print("setup: $setup");
+                  if(setup) {
+                    final result = await Myketpayment.buy(sku: 'flunlimit');
+                    afterPurchase(result);
+                  }
+                  else {
+                    print("can not connect to myket");
+                  }
+                },
+              ),
+            ],
+          ),
+        ),
+      ),
+    );
+  }
+
+  void afterPurchase(Map result) {
+    if(result.containsKey('purchased') && result['purchased'] == true) {
+      print("purchase info: $result");
+    }
+    else {
+      print("no purchase: $result");
+    }
+  }
+}
diff --git a/example/pubspec.lock b/example/pubspec.lock
new file mode 100644
index 0000000..02c648d
--- /dev/null
+++ b/example/pubspec.lock
@@ -0,0 +1,154 @@
+# Generated by pub
+# See https://dart.dev/tools/pub/glossary#lockfile
+packages:
+  async:
+    dependency: transitive
+    description:
+      name: async
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.4.1"
+  boolean_selector:
+    dependency: transitive
+    description:
+      name: boolean_selector
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.0"
+  charcode:
+    dependency: transitive
+    description:
+      name: charcode
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.3"
+  clock:
+    dependency: transitive
+    description:
+      name: clock
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
+  collection:
+    dependency: transitive
+    description:
+      name: collection
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.14.12"
+  cupertino_icons:
+    dependency: "direct main"
+    description:
+      name: cupertino_icons
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.1.3"
+  fake_async:
+    dependency: transitive
+    description:
+      name: fake_async
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
+  flutter:
+    dependency: "direct main"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  flutter_test:
+    dependency: "direct dev"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  matcher:
+    dependency: transitive
+    description:
+      name: matcher
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.12.6"
+  meta:
+    dependency: transitive
+    description:
+      name: meta
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.8"
+  myketpayment:
+    dependency: "direct main"
+    description:
+      path: ".."
+      relative: true
+    source: path
+    version: "0.0.1"
+  path:
+    dependency: transitive
+    description:
+      name: path
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.7.0"
+  sky_engine:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.99"
+  source_span:
+    dependency: transitive
+    description:
+      name: source_span
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.7.0"
+  stack_trace:
+    dependency: transitive
+    description:
+      name: stack_trace
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.9.3"
+  stream_channel:
+    dependency: transitive
+    description:
+      name: stream_channel
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.0"
+  string_scanner:
+    dependency: transitive
+    description:
+      name: string_scanner
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.5"
+  term_glyph:
+    dependency: transitive
+    description:
+      name: term_glyph
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
+  test_api:
+    dependency: transitive
+    description:
+      name: test_api
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.15"
+  typed_data:
+    dependency: transitive
+    description:
+      name: typed_data
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.6"
+  vector_math:
+    dependency: transitive
+    description:
+      name: vector_math
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.8"
+sdks:
+  dart: ">=2.7.0 <3.0.0"
+  flutter: ">=1.10.0"
diff --git a/example/pubspec.yaml b/example/pubspec.yaml
new file mode 100644
index 0000000..dbc2ab5
--- /dev/null
+++ b/example/pubspec.yaml
@@ -0,0 +1,71 @@
+name: myketpayment_example
+description: Add myket in app purchase for appeto team.
+
+# The following line prevents the package from being accidentally published to
+# pub.dev using `pub publish`. This is preferred for private packages.
+publish_to: 'none' # Remove this line if you wish to publish to pub.dev
+
+environment:
+  sdk: ">=2.7.0 <3.0.0"
+
+dependencies:
+  flutter:
+    sdk: flutter
+
+  myketpayment:
+    # When depending on this package from a real application you should use:
+    #   myketpayment: ^x.y.z
+    # See https://dart.dev/tools/pub/dependencies#version-constraints
+    # The example app is bundled with the plugin so we use a path dependency on
+    # the parent directory to use the current plugin's version. 
+    path: ../
+
+  # The following adds the Cupertino Icons font to your application.
+  # Use with the CupertinoIcons class for iOS style icons.
+  cupertino_icons: ^0.1.3
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+
+# For information on the generic Dart part of this file, see the
+# following page: https://dart.dev/tools/pub/pubspec
+
+# The following section is specific to Flutter.
+flutter:
+
+  # The following line ensures that the Material Icons font is
+  # included with your application, so that you can use the icons in
+  # the material Icons class.
+  uses-material-design: true
+
+  # To add assets to your application, add an assets section, like this:
+  # assets:
+  #   - images/a_dot_burr.jpeg
+  #   - images/a_dot_ham.jpeg
+
+  # An image asset can refer to one or more resolution-specific "variants", see
+  # https://flutter.dev/assets-and-images/#resolution-aware.
+
+  # For details regarding adding assets from package dependencies, see
+  # https://flutter.dev/assets-and-images/#from-packages
+
+  # To add custom fonts to your application, add a fonts section here,
+  # in this "flutter" section. Each entry in this list should have a
+  # "family" key with the font family name, and a "fonts" key with a
+  # list giving the asset and other descriptors for the font. For
+  # example:
+  # fonts:
+  #   - family: Schyler
+  #     fonts:
+  #       - asset: fonts/Schyler-Regular.ttf
+  #       - asset: fonts/Schyler-Italic.ttf
+  #         style: italic
+  #   - family: Trajan Pro
+  #     fonts:
+  #       - asset: fonts/TrajanPro.ttf
+  #       - asset: fonts/TrajanPro_Bold.ttf
+  #         weight: 700
+  #
+  # For details regarding fonts from package dependencies,
+  # see https://flutter.dev/custom-fonts/#from-packages
diff --git a/example/test/widget_test.dart b/example/test/widget_test.dart
new file mode 100644
index 0000000..1dcf1af
--- /dev/null
+++ b/example/test/widget_test.dart
@@ -0,0 +1,27 @@
+// This is a basic Flutter widget test.
+//
+// To perform an interaction with a widget in your test, use the WidgetTester
+// utility that Flutter provides. For example, you can send tap and scroll
+// gestures. You can also use WidgetTester to find child widgets in the widget
+// tree, read text, and verify that the values of widget properties are correct.
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+import 'package:myketpayment_example/main.dart';
+
+void main() {
+  testWidgets('Verify Platform version', (WidgetTester tester) async {
+    // Build our app and trigger a frame.
+    await tester.pumpWidget(MyApp());
+
+    // Verify that platform version is retrieved.
+    expect(
+      find.byWidgetPredicate(
+        (Widget widget) => widget is Text &&
+                           widget.data.startsWith('Running on:'),
+      ),
+      findsOneWidget,
+    );
+  });
+}
diff --git a/example/web/favicon.png b/example/web/favicon.png
new file mode 100644
index 0000000..8aaa46a
Binary files /dev/null and b/example/web/favicon.png differ
diff --git a/example/web/icons/Icon-192.png b/example/web/icons/Icon-192.png
new file mode 100644
index 0000000..b749bfe
Binary files /dev/null and b/example/web/icons/Icon-192.png differ
diff --git a/example/web/icons/Icon-512.png b/example/web/icons/Icon-512.png
new file mode 100644
index 0000000..88cfd48
Binary files /dev/null and b/example/web/icons/Icon-512.png differ
diff --git a/example/web/index.html b/example/web/index.html
new file mode 100644
index 0000000..44c4674
--- /dev/null
+++ b/example/web/index.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="UTF-8">
+  <meta content="IE=Edge" http-equiv="X-UA-Compatible">
+  <meta name="description" content="Demonstrates how to use the myketpayment plugin.">
+
+  <!-- iOS meta tags & icons -->
+  <meta name="apple-mobile-web-app-capable" content="yes">
+  <meta name="apple-mobile-web-app-status-bar-style" content="black">
+  <meta name="apple-mobile-web-app-title" content="myketpayment_example">
+  <link rel="apple-touch-icon" href="icons/Icon-192.png">
+
+  <!-- Favicon -->
+  <link rel="shortcut icon" type="image/png" href="favicon.png"/>
+
+  <title>myketpayment_example</title>
+  <link rel="manifest" href="manifest.json">
+</head>
+<body>
+  <!-- This script installs service_worker.js to provide PWA functionality to
+       application. For more information, see:
+       https://developers.google.com/web/fundamentals/primers/service-workers -->
+  <script>
+    if ('serviceWorker' in navigator) {
+      window.addEventListener('load', function () {
+        navigator.serviceWorker.register('flutter_service_worker.js');
+      });
+    }
+  </script>
+  <script src="main.dart.js" type="application/javascript"></script>
+</body>
+</html>
diff --git a/example/web/manifest.json b/example/web/manifest.json
new file mode 100644
index 0000000..41f9bae
--- /dev/null
+++ b/example/web/manifest.json
@@ -0,0 +1,23 @@
+{
+    "name": "myketpayment_example",
+    "short_name": "myketpayment_example",
+    "start_url": ".",
+    "display": "standalone",
+    "background_color": "#0175C2",
+    "theme_color": "#0175C2",
+    "description": "Demonstrates how to use the myketpayment plugin.",
+    "orientation": "portrait-primary",
+    "prefer_related_applications": false,
+    "icons": [
+        {
+            "src": "icons/Icon-192.png",
+            "sizes": "192x192",
+            "type": "image/png"
+        },
+        {
+            "src": "icons/Icon-512.png",
+            "sizes": "512x512",
+            "type": "image/png"
+        }
+    ]
+}
diff --git a/ios/.gitignore b/ios/.gitignore
new file mode 100644
index 0000000..aa479fd
--- /dev/null
+++ b/ios/.gitignore
@@ -0,0 +1,37 @@
+.idea/
+.vagrant/
+.sconsign.dblite
+.svn/
+
+.DS_Store
+*.swp
+profile
+
+DerivedData/
+build/
+GeneratedPluginRegistrant.h
+GeneratedPluginRegistrant.m
+
+.generated/
+
+*.pbxuser
+*.mode1v3
+*.mode2v3
+*.perspectivev3
+
+!default.pbxuser
+!default.mode1v3
+!default.mode2v3
+!default.perspectivev3
+
+xcuserdata
+
+*.moved-aside
+
+*.pyc
+*sync/
+Icon?
+.tags*
+
+/Flutter/Generated.xcconfig
+/Flutter/flutter_export_environment.sh
\ No newline at end of file
diff --git a/ios/Assets/.gitkeep b/ios/Assets/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/ios/Classes/MyketpaymentPlugin.h b/ios/Classes/MyketpaymentPlugin.h
new file mode 100644
index 0000000..37267f0
--- /dev/null
+++ b/ios/Classes/MyketpaymentPlugin.h
@@ -0,0 +1,4 @@
+#import <Flutter/Flutter.h>
+
+@interface MyketpaymentPlugin : NSObject<FlutterPlugin>
+@end
diff --git a/ios/Classes/MyketpaymentPlugin.m b/ios/Classes/MyketpaymentPlugin.m
new file mode 100644
index 0000000..d4867b6
--- /dev/null
+++ b/ios/Classes/MyketpaymentPlugin.m
@@ -0,0 +1,20 @@
+#import "MyketpaymentPlugin.h"
+
+@implementation MyketpaymentPlugin
++ (void)registerWithRegistrar:(NSObject<FlutterPluginRegistrar>*)registrar {
+  FlutterMethodChannel* channel = [FlutterMethodChannel
+      methodChannelWithName:@"myketpayment"
+            binaryMessenger:[registrar messenger]];
+  MyketpaymentPlugin* instance = [[MyketpaymentPlugin alloc] init];
+  [registrar addMethodCallDelegate:instance channel:channel];
+}
+
+- (void)handleMethodCall:(FlutterMethodCall*)call result:(FlutterResult)result {
+  if ([@"getPlatformVersion" isEqualToString:call.method]) {
+    result([@"iOS " stringByAppendingString:[[UIDevice currentDevice] systemVersion]]);
+  } else {
+    result(FlutterMethodNotImplemented);
+  }
+}
+
+@end
diff --git a/ios/myketpayment.podspec b/ios/myketpayment.podspec
new file mode 100644
index 0000000..575d9a9
--- /dev/null
+++ b/ios/myketpayment.podspec
@@ -0,0 +1,23 @@
+#
+# To learn more about a Podspec see http://guides.cocoapods.org/syntax/podspec.html.
+# Run `pod lib lint myketpayment.podspec' to validate before publishing.
+#
+Pod::Spec.new do |s|
+  s.name             = 'myketpayment'
+  s.version          = '0.0.1'
+  s.summary          = 'Add myket in app purchase'
+  s.description      = <<-DESC
+Add myket in app purchase
+                       DESC
+  s.homepage         = 'http://example.com'
+  s.license          = { :file => '../LICENSE' }
+  s.author           = { 'Your Company' => 'email@example.com' }
+  s.source           = { :path => '.' }
+  s.source_files = 'Classes/**/*'
+  s.public_header_files = 'Classes/**/*.h'
+  s.dependency 'Flutter'
+  s.platform = :ios, '8.0'
+
+  # Flutter.framework does not contain a i386 slice. Only x86_64 simulators are supported.
+  s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES', 'VALID_ARCHS[sdk=iphonesimulator*]' => 'x86_64' }
+end
diff --git a/lib/myketpayment.dart b/lib/myketpayment.dart
new file mode 100644
index 0000000..f0a7743
--- /dev/null
+++ b/lib/myketpayment.dart
@@ -0,0 +1,21 @@
+import 'dart:async';
+import 'dart:convert';
+
+import 'package:flutter/services.dart';
+
+class Myketpayment {
+  static const MethodChannel _channel = const MethodChannel('myketpayment');
+
+
+  static Future<bool> setup(String rsa) async {
+    final bool version = await _channel.invokeMethod('setup', {"rsa": rsa});
+    return version;
+  }
+
+  static Future<Map> buy({String sku, bool consume = false, String payload = ""}) async {
+    Map result = await _channel.invokeMethod('buy', {"sku": sku, "payload": payload, "consume": consume});
+    return result;
+  }
+
+
+}
diff --git a/myketpayment.iml b/myketpayment.iml
new file mode 100644
index 0000000..73e7ebd
--- /dev/null
+++ b/myketpayment.iml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/lib" isTestSource="false" />
+      <excludeFolder url="file://$MODULE_DIR$/.dart_tool" />
+      <excludeFolder url="file://$MODULE_DIR$/.idea" />
+      <excludeFolder url="file://$MODULE_DIR$/.pub" />
+      <excludeFolder url="file://$MODULE_DIR$/build" />
+      <excludeFolder url="file://$MODULE_DIR$/example/.dart_tool" />
+      <excludeFolder url="file://$MODULE_DIR$/example/.pub" />
+      <excludeFolder url="file://$MODULE_DIR$/example/build" />
+    </content>
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" name="Dart SDK" level="project" />
+    <orderEntry type="library" name="Flutter Plugins" level="project" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/pubspec.lock b/pubspec.lock
new file mode 100644
index 0000000..e739599
--- /dev/null
+++ b/pubspec.lock
@@ -0,0 +1,140 @@
+# Generated by pub
+# See https://dart.dev/tools/pub/glossary#lockfile
+packages:
+  async:
+    dependency: transitive
+    description:
+      name: async
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.4.1"
+  boolean_selector:
+    dependency: transitive
+    description:
+      name: boolean_selector
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.0"
+  charcode:
+    dependency: transitive
+    description:
+      name: charcode
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.3"
+  clock:
+    dependency: transitive
+    description:
+      name: clock
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.1"
+  collection:
+    dependency: transitive
+    description:
+      name: collection
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.14.12"
+  fake_async:
+    dependency: transitive
+    description:
+      name: fake_async
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
+  flutter:
+    dependency: "direct main"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  flutter_test:
+    dependency: "direct dev"
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  matcher:
+    dependency: transitive
+    description:
+      name: matcher
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.12.6"
+  meta:
+    dependency: transitive
+    description:
+      name: meta
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.8"
+  path:
+    dependency: transitive
+    description:
+      name: path
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.7.0"
+  sky_engine:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.99"
+  source_span:
+    dependency: transitive
+    description:
+      name: source_span
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.7.0"
+  stack_trace:
+    dependency: transitive
+    description:
+      name: stack_trace
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.9.3"
+  stream_channel:
+    dependency: transitive
+    description:
+      name: stream_channel
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.0"
+  string_scanner:
+    dependency: transitive
+    description:
+      name: string_scanner
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.0.5"
+  term_glyph:
+    dependency: transitive
+    description:
+      name: term_glyph
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.0"
+  test_api:
+    dependency: transitive
+    description:
+      name: test_api
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "0.2.15"
+  typed_data:
+    dependency: transitive
+    description:
+      name: typed_data
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "1.1.6"
+  vector_math:
+    dependency: transitive
+    description:
+      name: vector_math
+      url: "https://pub.dartlang.org"
+    source: hosted
+    version: "2.0.8"
+sdks:
+  dart: ">=2.7.0 <3.0.0"
+  flutter: ">=1.10.0"
diff --git a/pubspec.yaml b/pubspec.yaml
new file mode 100644
index 0000000..d1f8834
--- /dev/null
+++ b/pubspec.yaml
@@ -0,0 +1,65 @@
+name: myketpayment
+description: Add myket in app purchase
+version: 0.0.1
+author:
+homepage:
+
+environment:
+  sdk: ">=2.7.0 <3.0.0"
+  flutter: ">=1.10.0"
+
+dependencies:
+  flutter:
+    sdk: flutter
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+
+# For information on the generic Dart part of this file, see the
+# following page: https://dart.dev/tools/pub/pubspec
+
+# The following section is specific to Flutter.
+flutter:
+  # This section identifies this Flutter project as a plugin project.
+  # The 'pluginClass' and Android 'package' identifiers should not ordinarily
+  # be modified. They are used by the tooling to maintain consistency when
+  # adding or updating assets for this project.
+  plugin:
+    platforms:
+      android:
+        package: ir.appeto.myketpayment
+        pluginClass: MyketpaymentPlugin
+      ios:
+        pluginClass: MyketpaymentPlugin
+
+  # To add assets to your plugin package, add an assets section, like this:
+  # assets:
+  #   - images/a_dot_burr.jpeg
+  #   - images/a_dot_ham.jpeg
+  #
+  # For details regarding assets in packages, see
+  # https://flutter.dev/assets-and-images/#from-packages
+  #
+  # An image asset can refer to one or more resolution-specific "variants", see
+  # https://flutter.dev/assets-and-images/#resolution-aware.
+
+  # To add custom fonts to your plugin package, add a fonts section here,
+  # in this "flutter" section. Each entry in this list should have a
+  # "family" key with the font family name, and a "fonts" key with a
+  # list giving the asset and other descriptors for the font. For
+  # example:
+  # fonts:
+  #   - family: Schyler
+  #     fonts:
+  #       - asset: fonts/Schyler-Regular.ttf
+  #       - asset: fonts/Schyler-Italic.ttf
+  #         style: italic
+  #   - family: Trajan Pro
+  #     fonts:
+  #       - asset: fonts/TrajanPro.ttf
+  #       - asset: fonts/TrajanPro_Bold.ttf
+  #         weight: 700
+  #
+  # For details regarding fonts in packages, see
+  # https://flutter.dev/custom-fonts/#from-packages
diff --git a/test/myketpayment_test.dart b/test/myketpayment_test.dart
new file mode 100644
index 0000000..b1ca798
--- /dev/null
+++ b/test/myketpayment_test.dart
@@ -0,0 +1,23 @@
+import 'package:flutter/services.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:myketpayment/myketpayment.dart';
+
+void main() {
+  const MethodChannel channel = MethodChannel('myketpayment');
+
+  TestWidgetsFlutterBinding.ensureInitialized();
+
+  setUp(() {
+    channel.setMockMethodCallHandler((MethodCall methodCall) async {
+      return '42';
+    });
+  });
+
+  tearDown(() {
+    channel.setMockMethodCallHandler(null);
+  });
+
+  test('getPlatformVersion', () async {
+    expect(await Myketpayment.platformVersion, '42');
+  });
+}