Release of v0.3.0

CHANGELOG.md

@@ -1,3 +1,18 @@
+## 0.3.0
+#### Breaking change
+Its not necessary anymore to wrap the QRView in a SizeChangedLayoutNotifier because this is handled inside the plugin.
+#### New Features
+* Added possibility to set allowed barcodes. (#135)
+* Added possibility to check what features are supported by device. (hasFlash, hasBackCamera, hasFrontCamera) (#135)
+* Added possibility to check if flash is on. (#135)
+* Added possibility to check which camera is active. (#135)
+* All functions are now async so you can await them. (#135)
+
+See the updated example on how to implement these features.
+#### Bug fixes
+* Fixed permission handling in Android.
+* Native functions now returns results so exceptions can be thrown when an error occurs.
+
 ## 0.2.1
 * Fixed critical bug where scanner wouldn't open when no scan overlay was configured.
 
@@ -29,7 +44,7 @@
 
 ## 0.0.12
 * Add optional parameter to use a camera overlay.
-* Simplfiy controller, expose scanDataStream.
+* Simplify controller, expose scanDataStream.
 * Fix for Android flash toggle.
 * Add ability to pause/resume the camera.
 * Thanks! to Luis Thein for all the above contributions.

example/README.md

@@ -21,16 +21,14 @@ Demonstrates how to use the qr_code_scanner plugin.
 
 ## Example:
 ```dart
+import 'dart:io';
+
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:qr_code_scanner/qr_code_scanner.dart';
 
 void main() => runApp(MaterialApp(home: QRViewExample()));
 
-const flashOn = 'FLASH ON';
-const flashOff = 'FLASH OFF';
-const frontCamera = 'FRONT CAMERA';
-const backCamera = 'BACK CAMERA';
-
 class QRViewExample extends StatefulWidget {
   const QRViewExample({
     Key key,
@@ -42,8 +40,6 @@ class QRViewExample extends StatefulWidget {
 
 class _QRViewExampleState extends State<QRViewExample> {
   Barcode result;
-  var flashState = flashOn;
-  var cameraState = frontCamera;
   QRViewController controller;
   final GlobalKey qrKey = GlobalKey(debugLabel: 'QR');
 
@@ -84,44 +80,33 @@ class _QRViewExampleState extends State<QRViewExample> {
                       Container(
                         margin: EdgeInsets.all(8),
                         child: RaisedButton(
-                          onPressed: () {
-                            if (controller != null) {
-                              controller.toggleFlash();
-                              if (_isFlashOn(flashState)) {
-                                setState(() {
-                                  flashState = flashOff;
-                                });
-                              } else {
-                                setState(() {
-                                  flashState = flashOn;
-                                });
-                              }
-                            }
-                          },
-                          child:
-                              Text(flashState, style: TextStyle(fontSize: 20)),
-                        ),
+                            onPressed: () => setState(() {
+                                  controller?.toggleFlash();
+                                }),
+                            child: FutureBuilder(
+                              future: controller?.getFlashStatus(),
+                              builder: (context, snapshot) {
+                                return Text('Flash: ${snapshot.data}');
+                              },
+                            )),
                       ),
                       Container(
                         margin: EdgeInsets.all(8),
                         child: RaisedButton(
-                          onPressed: () {
-                            if (controller != null) {
-                              controller.flipCamera();
-                              if (_isBackCamera(cameraState)) {
-                                setState(() {
-                                  cameraState = frontCamera;
-                                });
-                              } else {
-                                setState(() {
-                                  cameraState = backCamera;
-                                });
-                              }
-                            }
-                          },
-                          child:
-                              Text(cameraState, style: TextStyle(fontSize: 20)),
-                        ),
+                            onPressed: () => setState(() {
+                                  controller?.flipCamera();
+                                }),
+                            child: FutureBuilder(
+                              future: controller?.getCameraInfo(),
+                              builder: (context, snapshot) {
+                                if (snapshot.data != null) {
+                                  return Text(
+                                      'Camera facing ${describeEnum(snapshot.data)}');
+                                } else {
+                                  return Text('loading');
+                                }
+                              },
+                            )),
                       )
                     ],
                   ),
@@ -158,14 +143,6 @@ class _QRViewExampleState extends State<QRViewExample> {
     );
   }
 
-  bool _isFlashOn(String current) {
-    return flashOn == current;
-  }
-
-  bool _isBackCamera(String current) {
-    return backCamera == current;
-  }
-
   Widget _buildQrView(BuildContext context) {
     // For this example we check how width or tall the device is and change the scanArea and overlay accordingly.
     var scanArea = (MediaQuery.of(context).size.width < 400 ||
@@ -174,29 +151,27 @@ class _QRViewExampleState extends State<QRViewExample> {
         : 300.0;
     // To ensure the Scanner view is properly sizes after rotation
     // we need to listen for Flutter SizeChanged notification and update controller
-    return NotificationListener<SizeChangedLayoutNotification>(
-        onNotification: (notification) {
-          Future.microtask(
-              () => controller?.updateDimensions(qrKey, scanArea: scanArea));
-          return false;
-        },
-        child: SizeChangedLayoutNotifier(
-            key: const Key('qr-size-notifier'),
-            child: QRView(
-              key: qrKey,
-              onQRViewCreated: _onQRViewCreated,
-              overlay: QrScannerOverlayShape(
-                borderColor: Colors.red,
-                borderRadius: 10,
-                borderLength: 30,
-                borderWidth: 10,
-                cutOutSize: scanArea,
-              ),
-            )));
+    return QRView(
+      key: qrKey,
+      // You can choose between CameraFacing.front or CameraFacing.back. Defaults to CameraFacing.back
+      cameraFacing: CameraFacing.front,
+      onQRViewCreated: _onQRViewCreated,
+      // Choose formats you want to scan. Defaults to all formats.
+      formatsAllowed: [BarcodeFormat.qrcode],
+      overlay: QrScannerOverlayShape(
+        borderColor: Colors.red,
+        borderRadius: 10,
+        borderLength: 30,
+        borderWidth: 10,
+        cutOutSize: scanArea,
+      ),
+    );
   }
 
   void _onQRViewCreated(QRViewController controller) {
-    this.controller = controller;
+    setState(() {
+      this.controller = controller;
+    });
     controller.scannedDataStream.listen((scanData) {
       setState(() {
         result = scanData;

pubspec.yaml

@@ -1,6 +1,6 @@
 name: qr_code_scanner
 description: QR code scanner that can be embedded inside flutter. It uses zxing in Android and MTBBarcode scanner in iOS.
-version: 0.2.1
+version: 0.3.0
 homepage: https://juliuscanute.com
 repository: https://github.com/juliuscanute/qr_code_scanner