From b17de675e99fee0cd8940b79b056c2f7d843779d Mon Sep 17 00:00:00 2001
From: Julian Steenbakker <juliansteenbakker@outlook.com>
Date: Fri, 5 Feb 2021 09:14:53 +0100
Subject: [PATCH] Fixed iOS not disposing camera

---
 .../kotlin/net/touchcapture/qr/flutterqr/QRView.kt |  2 ++
 ios/Classes/QRView.swift                           |  4 +++-
 lib/src/qr_code_scanner.dart                       | 14 ++++++++++++--
 3 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/android/src/main/kotlin/net/touchcapture/qr/flutterqr/QRView.kt b/android/src/main/kotlin/net/touchcapture/qr/flutterqr/QRView.kt
index 498911d..f9a6314 100644
--- a/android/src/main/kotlin/net/touchcapture/qr/flutterqr/QRView.kt
+++ b/android/src/main/kotlin/net/touchcapture/qr/flutterqr/QRView.kt
@@ -70,6 +70,8 @@ class QRView(messenger: BinaryMessenger, id: Int, private val params: HashMap<St
             "flipCamera" -> flipCamera(result)
             "toggleFlash" -> toggleFlash(result)
             "pauseCamera" -> pauseCamera(result)
+            // Stopping camera is the same as pausing camera
+            "stopCamera" -> pauseCamera(result)
             "resumeCamera" -> resumeCamera(result)
             "requestPermissions" -> checkAndRequestPermission(result)
             "getCameraInfo" -> getCameraInfo(result)
diff --git a/ios/Classes/QRView.swift b/ios/Classes/QRView.swift
index af9be2c..aa7aa69 100644
--- a/ios/Classes/QRView.swift
+++ b/ios/Classes/QRView.swift
@@ -59,6 +59,8 @@ public class QRView:NSObject,FlutterPlatformView {
                     self?.toggleFlash(result)
                 case "pauseCamera":
                     self?.pauseCamera(result)
+                case "stopCamera":
+                    self?.stopCamera(result)
                 case "resumeCamera":
                     self?.resumeCamera(result)
                 case "getCameraInfo":
@@ -185,7 +187,7 @@ public class QRView:NSObject,FlutterPlatformView {
     
     }
     
-    func stopScan(_ result: @escaping FlutterResult){
+    func stopCamera(_ result: @escaping FlutterResult){
         MTBBarcodeScanner.requestCameraPermission(success: { permissionGranted in
             if permissionGranted {
                 if let sc: MTBBarcodeScanner = self.scanner {
diff --git a/lib/src/qr_code_scanner.dart b/lib/src/qr_code_scanner.dart
index ea04c1e..ec28402 100644
--- a/lib/src/qr_code_scanner.dart
+++ b/lib/src/qr_code_scanner.dart
@@ -251,7 +251,7 @@ class QRViewController {
     }
   }
 
-  /// Pauses barcode scanning
+  /// Pauses the camera and barcode scanning
   Future<void> pauseCamera() async {
     try {
       await _channel.invokeMethod('pauseCamera');
@@ -260,6 +260,15 @@ class QRViewController {
     }
   }
 
+  /// Stops barcode scanning and the camera
+  Future<void> stopCamera() async {
+    try {
+      await _channel.invokeMethod('stopCamera');
+    } on PlatformException catch (e) {
+      throw CameraException(e.code, e.message);
+    }
+  }
+
   /// Resumes barcode scanning
   Future<void> resumeCamera() async {
     try {
@@ -280,8 +289,9 @@ class QRViewController {
     }
   }
 
-  /// Disposes the barcode stream.
+  /// Stops the camera and disposes the barcode stream.
   void dispose() {
+    stopCamera();
     _scanUpdateController.close();
   }