ci: update view

-include: package:flutter_lints/flutter.yaml
-
-# Additional information about this file can be found at
-# https://dart.dev/guides/language/analysis-options
+include: package:flutter_lints/flutter.yaml

@@ -9,8 +9,7 @@ buildscript {
     }
     }
 
 
     dependencies {
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.1.3'
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        classpath 'com.android.tools.build:gradle:7.1.0'
     }
     }
 }
 }
 
 

@@ -31,10 +31,9 @@ class MobileScanner(private val activity: Activity, private val textureRegistry:
     private var camera: Camera? = null
     private var camera: Camera? = null
     private var textureEntry: TextureRegistry.SurfaceTextureEntry? = null
     private var textureEntry: TextureRegistry.SurfaceTextureEntry? = null
 
 
-//    @AnalyzeMode
-//    private var analyzeMode: Int = AnalyzeMode.NONE
+    @AnalyzeMode
+    private var analyzeMode: Int = AnalyzeMode.NONE
 
 
-    @ExperimentalGetImage
     override fun onMethodCall(@NonNull call: MethodCall, @NonNull result: MethodChannel.Result) {
     override fun onMethodCall(@NonNull call: MethodCall, @NonNull result: MethodChannel.Result) {
         when (call.method) {
         when (call.method) {
             "state" -> stateNative(result)
             "state" -> stateNative(result)
@@ -101,8 +100,8 @@ class MobileScanner(private val activity: Activity, private val textureRegistry:
             val preview = Preview.Builder().build().apply { setSurfaceProvider(surfaceProvider) }
             val preview = Preview.Builder().build().apply { setSurfaceProvider(surfaceProvider) }
             // Analyzer
             // Analyzer
             val analyzer = ImageAnalysis.Analyzer { imageProxy -> // YUV_420_888 format
             val analyzer = ImageAnalysis.Analyzer { imageProxy -> // YUV_420_888 format
-//                when (analyzeMode) {
-//                    AnalyzeMode.BARCODE -> {
+                when (analyzeMode) {
+                    AnalyzeMode.BARCODE -> {
                         val mediaImage = imageProxy.image ?: return@Analyzer
                         val mediaImage = imageProxy.image ?: return@Analyzer
                         val inputImage = InputImage.fromMediaImage(mediaImage, imageProxy.imageInfo.rotationDegrees)
                         val inputImage = InputImage.fromMediaImage(mediaImage, imageProxy.imageInfo.rotationDegrees)
                         val scanner = BarcodeScanning.getClient()
                         val scanner = BarcodeScanning.getClient()
@@ -115,9 +114,9 @@ class MobileScanner(private val activity: Activity, private val textureRegistry:
                                 }
                                 }
                                 .addOnFailureListener { e -> Log.e(TAG, e.message, e) }
                                 .addOnFailureListener { e -> Log.e(TAG, e.message, e) }
                                 .addOnCompleteListener { imageProxy.close() }
                                 .addOnCompleteListener { imageProxy.close() }
-//                    }
-//                    else -> imageProxy.close()
-//                }
+                    }
+                    else -> imageProxy.close()
+                }
             }
             }
             val analysis = ImageAnalysis.Builder()
             val analysis = ImageAnalysis.Builder()
                     .setBackpressureStrategy(ImageAnalysis.STRATEGY_KEEP_ONLY_LATEST)
                     .setBackpressureStrategy(ImageAnalysis.STRATEGY_KEEP_ONLY_LATEST)
@@ -152,7 +151,7 @@ class MobileScanner(private val activity: Activity, private val textureRegistry:
     }
     }
 
 
     private fun analyzeNative(call: MethodCall, result: MethodChannel.Result) {
     private fun analyzeNative(call: MethodCall, result: MethodChannel.Result) {
-//        analyzeMode = call.arguments as Int
+        analyzeMode = call.arguments as Int
         result.success(null)
         result.success(null)
     }
     }
 
 
@@ -162,6 +161,7 @@ class MobileScanner(private val activity: Activity, private val textureRegistry:
         cameraProvider!!.unbindAll()
         cameraProvider!!.unbindAll()
         textureEntry!!.release()
         textureEntry!!.release()
 
 
+        analyzeMode = AnalyzeMode.NONE
         camera = null
         camera = null
         textureEntry = null
         textureEntry = null
         cameraProvider = null
         cameraProvider = null
@@ -169,14 +169,13 @@ class MobileScanner(private val activity: Activity, private val textureRegistry:
         result.success(null)
         result.success(null)
     }
     }
 }
 }
-//
-//
-//@IntDef(AnalyzeMode.NONE, AnalyzeMode.BARCODE)
-//@Target(AnnotationTarget.FIELD)
-//@Retention(AnnotationRetention.SOURCE)
-//annotation class AnalyzeMode {
-//    companion object {
-//        const val NONE = 0
-//        const val BARCODE = 1
-//    }
-//}
+
+@IntDef(AnalyzeMode.NONE, AnalyzeMode.BARCODE)
+@Target(AnnotationTarget.FIELD)
+@Retention(AnnotationRetention.SOURCE)
+annotation class AnalyzeMode {
+    companion object {
+        const val NONE = 0
+        const val BARCODE = 1
+    }
+}

@@ -24,8 +24,6 @@ if (flutterVersionName == null) {
 apply plugin: 'com.android.application'
 apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
-// Apply the Performance Monitoring plugin
-apply plugin: 'com.google.firebase.firebase-perf'
 
 
 android {
 android {
     compileSdkVersion flutter.compileSdkVersion
     compileSdkVersion flutter.compileSdkVersion
@@ -59,6 +57,7 @@ android {
             signingConfig signingConfigs.debug
             signingConfig signingConfigs.debug
         }
         }
     }
     }
+    namespace 'dev.steenbakker.mobile_scanner_example'
 }
 }
 
 
 flutter {
 flutter {

-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="dev.steenbakker.mobile_scanner_example">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
     <!-- Flutter needs it to communicate with the running application
     <!-- Flutter needs it to communicate with the running application
          to allow setting breakpoints, to provide hot reload, etc.
          to allow setting breakpoints, to provide hot reload, etc.
     -->
     -->

 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="dev.steenbakker.mobile_scanner_example">
+    package="dev.steenbakker.mobile_scanner.example">
+
    <application
    <application
         android:label="mobile_scanner_example"
         android:label="mobile_scanner_example"
-        android:name="${applicationName}"
         android:icon="@mipmap/ic_launcher">
         android:icon="@mipmap/ic_launcher">
         <activity
         <activity
-            android:name=".MainActivity"
+            android:name="io.flutter.embedding.android.FlutterActivity"
             android:exported="true"
             android:exported="true"
             android:launchMode="singleTop"
             android:launchMode="singleTop"
             android:theme="@style/LaunchTheme"
             android:theme="@style/LaunchTheme"

-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="dev.steenbakker.mobile_scanner_example">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
     <!-- Flutter needs it to communicate with the running application
     <!-- Flutter needs it to communicate with the running application
          to allow setting breakpoints, to provide hot reload, etc.
          to allow setting breakpoints, to provide hot reload, etc.
     -->
     -->

@@ -6,8 +6,7 @@ buildscript {
     }
     }
 
 
     dependencies {
     dependencies {
-        classpath 'com.google.firebase:perf-plugin:1.4.0'  // Performanc
-        classpath 'com.android.tools.build:gradle:7.0.4'
+        classpath 'com.android.tools.build:gradle:7.1.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
     }
 }
 }

-
 import 'dart:ui';
 import 'dart:ui';
 
 
 import 'package:flutter/material.dart';
 import 'package:flutter/material.dart';
@@ -17,76 +16,75 @@ class AnalyzeView extends StatefulWidget {
 
 
 class _AnalyzeViewState extends State<AnalyzeView>
 class _AnalyzeViewState extends State<AnalyzeView>
     with SingleTickerProviderStateMixin {
     with SingleTickerProviderStateMixin {
-
   List<Offset> points = [];
   List<Offset> points = [];
 
 
   CameraController cameraController = CameraController();
   CameraController cameraController = CameraController();
 
 
   String? barcode = null;
   String? barcode = null;
 
 
-
   @override
   @override
   Widget build(BuildContext context) {
   Widget build(BuildContext context) {
     return MaterialApp(
     return MaterialApp(
       home: Scaffold(
       home: Scaffold(
-        body: Builder(
-          builder: (context) {
-            return Stack(
-              children: [
-                CameraView(cameraController,
-                    onDetect: (barcode, args) {
-                  if (this.barcode != barcode.rawValue) {
-                    this.barcode = barcode.rawValue;
-                    if ( barcode.corners != null) {
-                      debugPrint('Size: ${MediaQuery.of(context).size}');
-                      ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('${barcode.rawValue}'), duration: Duration(milliseconds: 200), animation: null,));
-                      setState(() {
-                        final List<Offset> points = [];
-                        double factorWidth = args.size.width / 520;
-                        double factorHeight = args.size.height / 640;
-                        for (var point in barcode.corners!) {
-                          points.add(Offset(point.dx * factorWidth, point.dy * factorHeight));
-                        }
-                        this.points = points;
-                      });
+        body: Builder(builder: (context) {
+          return Stack(
+            children: [
+              CameraView(
+                  controller: cameraController,
+                  onDetect: (barcode, args) {
+                    if (this.barcode != barcode.rawValue) {
+                      this.barcode = barcode.rawValue;
+                      if (barcode.corners != null) {
+                        debugPrint('Size: ${MediaQuery.of(context).size}');
+                        ScaffoldMessenger.of(context).showSnackBar(SnackBar(
+                          content: Text('${barcode.rawValue}'),
+                          duration: Duration(milliseconds: 200),
+                          animation: null,
+                        ));
+                        setState(() {
+                          final List<Offset> points = [];
+                          double factorWidth = args.size.width / 520;
+                          double factorHeight = args.size.height / 640;
+                          for (var point in barcode.corners!) {
+                            points.add(Offset(point.dx * factorWidth,
+                                point.dy * factorHeight));
+                          }
+                          this.points = points;
+                        });
+                      }
                     }
                     }
-                  }
-                  // Default 640 x480
-
-                    }),
-                Container(
-                  // width: 400,
-                  // height: 400,
-                  child: CustomPaint(
-                    painter: OpenPainter(points),
-                  ),
+                    // Default 640 x480
+                  }),
+              Container(
+                // width: 400,
+                // height: 400,
+                child: CustomPaint(
+                  painter: OpenPainter(points),
                 ),
                 ),
-                Container(
-                  alignment: Alignment.bottomCenter,
-                  margin: EdgeInsets.only(bottom: 80.0),
-                  child: IconButton(
-                    icon: ValueListenableBuilder(
-                      valueListenable: cameraController.torchState,
-                      builder: (context, state, child) {
-                        final color =
-                        state == TorchState.off ? Colors.grey : Colors.white;
-                        return Icon(Icons.bolt, color: color);
-                      },
-                    ),
-                    iconSize: 32.0,
-                    onPressed: () => cameraController.torch(),
+              ),
+              Container(
+                alignment: Alignment.bottomCenter,
+                margin: EdgeInsets.only(bottom: 80.0),
+                child: IconButton(
+                  icon: ValueListenableBuilder(
+                    valueListenable: cameraController.torchState,
+                    builder: (context, state, child) {
+                      final color =
+                          state == TorchState.off ? Colors.grey : Colors.white;
+                      return Icon(Icons.bolt, color: color);
+                    },
                   ),
                   ),
+                  iconSize: 32.0,
+                  onPressed: () => cameraController.torch(),
                 ),
                 ),
-              ],
-            );
-          }
-        ),
+              ),
+            ],
+          );
+        }),
       ),
       ),
     );
     );
   }
   }
 
 
-
-
   @override
   @override
   void dispose() {
   void dispose() {
     cameraController.dispose();
     cameraController.dispose();

@@ -4,11 +4,20 @@ import 'package:flutter/cupertino.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter/services.dart';
 
 
 import 'camera_args.dart';
 import 'camera_args.dart';
-import 'camera_facing.dart';
 import 'objects/barcode.dart';
 import 'objects/barcode.dart';
 import 'torch_state.dart';
 import 'torch_state.dart';
 import 'util.dart';
 import 'util.dart';
 
 
+/// The facing of a camera.
+enum CameraFacing {
+  /// Front facing camera.
+  front,
+
+  /// Back facing camera.
+  back,
+}
+
+
 /// A camera controller.
 /// A camera controller.
 abstract class CameraController {
 abstract class CameraController {
   /// Arguments for [CameraView].
   /// Arguments for [CameraView].

-/// The facing of a camera.
-enum CameraFacing {
-  /// Front facing camera.
-  front,
-
-  /// Back facing camera.
-  back,
-}

@@ -2,44 +2,60 @@ import 'package:flutter/material.dart';
 import 'package:mobile_scanner/mobile_scanner.dart';
 import 'package:mobile_scanner/mobile_scanner.dart';
 
 
 import 'camera_args.dart';
 import 'camera_args.dart';
-import 'camera_controller.dart';
 
 
 /// A widget showing a live camera preview.
 /// A widget showing a live camera preview.
-class CameraView extends StatelessWidget {
+class CameraView extends StatefulWidget {
   /// The controller of the camera.
   /// The controller of the camera.
-  final CameraController controller;
+  final CameraController? controller;
   final Function(Barcode barcode, CameraArgs args)? onDetect;
   final Function(Barcode barcode, CameraArgs args)? onDetect;
 
 
   /// Create a [CameraView] with a [controller], the [controller] must has been initialized.
   /// Create a [CameraView] with a [controller], the [controller] must has been initialized.
-  CameraView(this.controller, {this.onDetect});
+  const CameraView({Key? key, this.onDetect, this.controller}) : super(key: key);
+
+  @override
+  State<CameraView> createState() => _CameraViewState();
+}
+
+class _CameraViewState extends State<CameraView> {
+
+  late CameraController controller;
+  @override
+  initState() {
+    super.initState();
+    controller = widget.controller ?? CameraController();
+  }
 
 
   @override
   @override
   Widget build(BuildContext context) {
   Widget build(BuildContext context) {
     return ValueListenableBuilder(
     return ValueListenableBuilder(
-      valueListenable: controller.args,
-      builder: (context, value, child) => _build(context, value as CameraArgs?),
-    );
-  }
+        valueListenable: controller.args,
+        builder: (context, value, child) {
+          value = value as CameraArgs?;
+          if (value == null) {
+            return Container(color: Colors.black);
+          } else {
+            controller.barcodes
+                .listen((a) => widget.onDetect!(a, value as CameraArgs));
 
 
-  Widget _build(BuildContext context, CameraArgs? value) {
-    if (value == null) {
-      return Container(color: Colors.black);
-    } else {
+            return ClipRect(
+              child: Transform.scale(
+                scale: value.size.fill(MediaQuery.of(context).size),
+                child: Center(
+                  child: AspectRatio(
+                    aspectRatio: value.size.aspectRatio,
+                    child: Texture(textureId: value.textureId),
+                  ),
+                ),
+              ),
+            );
+          }
+        });
+  }
 
 
-      controller.barcodes.listen((a) => onDetect!(a, value));
-
-      return ClipRect(
-        child: Transform.scale(
-          scale: value.size.fill(MediaQuery.of(context) .size),
-          child: Center(
-            child: AspectRatio(
-              aspectRatio: value.size.aspectRatio,
-              child: Texture(textureId: value.textureId),
-            ),
-          ),
-        ),
-      );
-    }
+  @override
+  void dispose() {
+    controller.dispose();
+    super.dispose();
   }
   }
 }
 }
 
 

-import 'dart:async';
-import 'package:flutter/material.dart';
-import 'package:mobile_scanner/src/mobile_scanner_handler.dart';
-import 'package:mobile_scanner/src/objects/preview_details.dart';
-
-import 'mobile_scanner_preview.dart';
-import 'objects/barcode_formats.dart';
-
-typedef ErrorCallback = Widget Function(BuildContext context, Object? error);
-
-Text _defaultNotStartedBuilder(context) => const Text("Camera Loading ...");
-Text _defaultOffscreenBuilder(context) => const Text("Camera Paused.");
-Text _defaultOnError(BuildContext context, Object? error) {
-  debugPrint("Error reading from camera: $error");
-  return const Text("Error reading from camera...");
-}
-
-class MobileScanner extends StatefulWidget {
-  const MobileScanner(
-      {Key? key,
-      required this.qrCodeCallback,
-      this.child,
-      this.fit = BoxFit.cover,
-      WidgetBuilder? notStartedBuilder,
-      WidgetBuilder? offscreenBuilder,
-      ErrorCallback? onError,
-      this.formats,
-      this.rearLens = true,
-      this.manualFocus = false})
-      : notStartedBuilder = notStartedBuilder ?? _defaultNotStartedBuilder,
-        offscreenBuilder =
-            offscreenBuilder ?? notStartedBuilder ?? _defaultOffscreenBuilder,
-        onError = onError ?? _defaultOnError,
-        super(key: key);
-
-  final BoxFit fit;
-  final ValueChanged<String?> qrCodeCallback;
-  final Widget? child;
-  final WidgetBuilder notStartedBuilder;
-  final WidgetBuilder offscreenBuilder;
-  final ErrorCallback onError;
-  final List<BarcodeFormats>? formats;
-  final bool rearLens;
-  final bool manualFocus;
-
-  static void toggleFlash() {
-    MobileScannerHandler.toggleFlash();
-  }
-
-  static void flipCamera() {
-    MobileScannerHandler.switchCamera();
-  }
-
-  @override
-  _MobileScannerState createState() => _MobileScannerState();
-}
-
-class _MobileScannerState extends State<MobileScanner>
-    with WidgetsBindingObserver {
-
-  bool onScreen = true;
-  Future<PreviewDetails>? _previewDetails;
-
-  @override
-  void initState() {
-    super.initState();
-    WidgetsBinding.instance!.addObserver(this);
-  }
-
-  @override
-  void dispose() {
-    WidgetsBinding.instance!.removeObserver(this);
-    super.dispose();
-  }
-
-  @override
-  void didChangeAppLifecycleState(AppLifecycleState state) {
-    if (state == AppLifecycleState.resumed) {
-      setState(() => onScreen = true);
-    } else {
-      if (_previewDetails != null && onScreen) {
-        MobileScannerHandler.stop();
-      }
-      setState(() {
-        onScreen = false;
-        _previewDetails = null;
-      });
-    }
-  }
-
-  Future<PreviewDetails> _initPreview(num width, num height) async {
-    final devicePixelRatio = MediaQuery.of(context).devicePixelRatio;
-    return await MobileScannerHandler.start(
-      width: (devicePixelRatio * width.toInt()).ceil(),
-      height: (devicePixelRatio * height.toInt()).ceil(),
-      qrCodeHandler: widget.qrCodeCallback,
-      formats: widget.formats,
-    );
-  }
-
-  void switchCamera() {
-    MobileScannerHandler.rearLens = !MobileScannerHandler.rearLens;
-    restart();
-  }
-
-
-  void switchFocus() {
-    MobileScannerHandler.manualFocus = !MobileScannerHandler.manualFocus;
-    restart();
-  }
-
-  /// This method can be used to restart scanning
-  ///  the event that it was paused.
-  Future<void> restart() async {
-    await MobileScannerHandler.stop();
-    setState(() {
-      _previewDetails = null;
-    });
-  }
-
-  /// This method can be used to manually stop the
-  /// camera.
-  Future<void> stop() async {
-    await MobileScannerHandler.stop();
-  }
-
-  @override
-  deactivate() {
-    super.deactivate();
-    MobileScannerHandler.stop();
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    return LayoutBuilder(
-        builder: (BuildContext context, BoxConstraints constraints) {
-      if (_previewDetails == null && onScreen) {
-        _previewDetails =
-            _initPreview(constraints.maxWidth, constraints.maxHeight);
-      } else if (!onScreen) {
-        return widget.offscreenBuilder(context);
-      }
-
-      return FutureBuilder(
-        future: _previewDetails,
-        builder: (BuildContext context, AsyncSnapshot<PreviewDetails> details) {
-          switch (details.connectionState) {
-            case ConnectionState.none:
-            case ConnectionState.waiting:
-              return widget.notStartedBuilder(context);
-            case ConnectionState.done:
-              if (details.hasError) {
-                debugPrint(details.error.toString());
-                return widget.onError(context, details.error);
-              }
-              Widget preview = SizedBox(
-                width: constraints.maxWidth,
-                height: constraints.maxHeight,
-                child: Preview(
-                  previewDetails: details.data!,
-                  targetWidth: constraints.maxWidth,
-                  targetHeight: constraints.maxHeight,
-                  fit: widget.fit,
-                ),
-              );
-
-              if (widget.child != null) {
-                return Stack(
-                  children: [
-                    preview,
-                    widget.child!,
-                  ],
-                );
-              }
-              return preview;
-
-            default:
-              throw AssertionError("${details.connectionState} not supported.");
-          }
-        },
-      );
-    });
-  }
-}
+// import 'dart:async';
+// import 'package:flutter/material.dart';
+// import 'package:mobile_scanner/src/mobile_scanner_handler.dart';
+// import 'package:mobile_scanner/src/objects/preview_details.dart';
+//
+// import 'mobile_scanner_preview.dart';
+// import 'objects/barcode_formats.dart';
+//
+// typedef ErrorCallback = Widget Function(BuildContext context, Object? error);
+//
+// Text _defaultNotStartedBuilder(context) => const Text("Camera Loading ...");
+// Text _defaultOffscreenBuilder(context) => const Text("Camera Paused.");
+// Text _defaultOnError(BuildContext context, Object? error) {
+//   debugPrint("Error reading from camera: $error");
+//   return const Text("Error reading from camera...");
+// }
+//
+// class MobileScanner extends StatefulWidget {
+//   const MobileScanner(
+//       {Key? key,
+//       required this.qrCodeCallback,
+//       this.child,
+//       this.fit = BoxFit.cover,
+//       WidgetBuilder? notStartedBuilder,
+//       WidgetBuilder? offscreenBuilder,
+//       ErrorCallback? onError,
+//       this.formats,
+//       this.rearLens = true,
+//       this.manualFocus = false})
+//       : notStartedBuilder = notStartedBuilder ?? _defaultNotStartedBuilder,
+//         offscreenBuilder =
+//             offscreenBuilder ?? notStartedBuilder ?? _defaultOffscreenBuilder,
+//         onError = onError ?? _defaultOnError,
+//         super(key: key);
+//
+//   final BoxFit fit;
+//   final ValueChanged<String?> qrCodeCallback;
+//   final Widget? child;
+//   final WidgetBuilder notStartedBuilder;
+//   final WidgetBuilder offscreenBuilder;
+//   final ErrorCallback onError;
+//   final List<BarcodeFormats>? formats;
+//   final bool rearLens;
+//   final bool manualFocus;
+//
+//   static void toggleFlash() {
+//     MobileScannerHandler.toggleFlash();
+//   }
+//
+//   static void flipCamera() {
+//     MobileScannerHandler.switchCamera();
+//   }
+//
+//   @override
+//   _MobileScannerState createState() => _MobileScannerState();
+// }
+//
+// class _MobileScannerState extends State<MobileScanner>
+//     with WidgetsBindingObserver {
+//
+//   bool onScreen = true;
+//   Future<PreviewDetails>? _previewDetails;
+//
+//   @override
+//   void initState() {
+//     super.initState();
+//     WidgetsBinding.instance!.addObserver(this);
+//   }
+//
+//   @override
+//   void dispose() {
+//     WidgetsBinding.instance!.removeObserver(this);
+//     super.dispose();
+//   }
+//
+//   @override
+//   void didChangeAppLifecycleState(AppLifecycleState state) {
+//     if (state == AppLifecycleState.resumed) {
+//       setState(() => onScreen = true);
+//     } else {
+//       if (_previewDetails != null && onScreen) {
+//         MobileScannerHandler.stop();
+//       }
+//       setState(() {
+//         onScreen = false;
+//         _previewDetails = null;
+//       });
+//     }
+//   }
+//
+//   Future<PreviewDetails> _initPreview(num width, num height) async {
+//     final devicePixelRatio = MediaQuery.of(context).devicePixelRatio;
+//     return await MobileScannerHandler.start(
+//       width: (devicePixelRatio * width.toInt()).ceil(),
+//       height: (devicePixelRatio * height.toInt()).ceil(),
+//       qrCodeHandler: widget.qrCodeCallback,
+//       formats: widget.formats,
+//     );
+//   }
+//
+//   void switchCamera() {
+//     MobileScannerHandler.rearLens = !MobileScannerHandler.rearLens;
+//     restart();
+//   }
+//
+//
+//   void switchFocus() {
+//     MobileScannerHandler.manualFocus = !MobileScannerHandler.manualFocus;
+//     restart();
+//   }
+//
+//   /// This method can be used to restart scanning
+//   ///  the event that it was paused.
+//   Future<void> restart() async {
+//     await MobileScannerHandler.stop();
+//     setState(() {
+//       _previewDetails = null;
+//     });
+//   }
+//
+//   /// This method can be used to manually stop the
+//   /// camera.
+//   Future<void> stop() async {
+//     await MobileScannerHandler.stop();
+//   }
+//
+//   @override
+//   deactivate() {
+//     super.deactivate();
+//     MobileScannerHandler.stop();
+//   }
+//
+//   @override
+//   Widget build(BuildContext context) {
+//     return LayoutBuilder(
+//         builder: (BuildContext context, BoxConstraints constraints) {
+//       if (_previewDetails == null && onScreen) {
+//         _previewDetails =
+//             _initPreview(constraints.maxWidth, constraints.maxHeight);
+//       } else if (!onScreen) {
+//         return widget.offscreenBuilder(context);
+//       }
+//
+//       return FutureBuilder(
+//         future: _previewDetails,
+//         builder: (BuildContext context, AsyncSnapshot<PreviewDetails> details) {
+//           switch (details.connectionState) {
+//             case ConnectionState.none:
+//             case ConnectionState.waiting:
+//               return widget.notStartedBuilder(context);
+//             case ConnectionState.done:
+//               if (details.hasError) {
+//                 debugPrint(details.error.toString());
+//                 return widget.onError(context, details.error);
+//               }
+//               Widget preview = SizedBox(
+//                 width: constraints.maxWidth,
+//                 height: constraints.maxHeight,
+//                 child: Preview(
+//                   previewDetails: details.data!,
+//                   targetWidth: constraints.maxWidth,
+//                   targetHeight: constraints.maxHeight,
+//                   fit: widget.fit,
+//                 ),
+//               );
+//
+//               if (widget.child != null) {
+//                 return Stack(
+//                   children: [
+//                     preview,
+//                     widget.child!,
+//                   ],
+//                 );
+//               }
+//               return preview;
+//
+//             default:
+//               throw AssertionError("${details.connectionState} not supported.");
+//           }
+//         },
+//       );
+//     });
+//   }
+// }

-import 'dart:async';
-
-import 'package:flutter/material.dart';
-import 'package:mobile_scanner/src/objects/preview_details.dart';
-import 'package:native_device_orientation/native_device_orientation.dart';
-import 'package:sensors_plus/sensors_plus.dart';
-
-class Preview extends StatefulWidget {
-  final double width, height;
-  final double targetWidth, targetHeight;
-  final int? textureId;
-  final int? sensorOrientation;
-  final BoxFit fit;
-
-  Preview({
-    Key? key,
-    required PreviewDetails previewDetails,
-    required this.targetWidth,
-    required this.targetHeight,
-    required this.fit,
-  })  : textureId = previewDetails.textureId,
-        width = previewDetails.width!.toDouble(),
-        height = previewDetails.height!.toDouble(),
-        sensorOrientation = previewDetails.sensorOrientation as int?,
-        super(key: key);
-
-  @override
-  State<Preview> createState() => _PreviewState();
-}
-
-class _PreviewState extends State<Preview> {
-
-  final _streamSubscriptions = <StreamSubscription<dynamic>>[];
-  bool landscapeLeft = false;
-
-  @override
-  void initState() {
-    super.initState();
-    _streamSubscriptions.add(
-      magnetometerEvents.listen(
-            (MagnetometerEvent event) {
-              if (event.x <= 0) {
-                landscapeLeft = true;
-              } else {
-                landscapeLeft = false;
-              }
-        },
-      ),
-    );
-  }
-
-  @override
-  void dispose() {
-    super.dispose();
-    for (final subscription in _streamSubscriptions) {
-      subscription.cancel();
-    }
-  }
-
-
-  int _getRotationCompensation(NativeDeviceOrientation nativeOrientation) {
-    int nativeRotation = 0;
-    switch (nativeOrientation) {
-      case NativeDeviceOrientation.portraitUp:
-        nativeRotation = 0;
-        break;
-      case NativeDeviceOrientation.landscapeRight:
-        nativeRotation = 90;
-        break;
-      case NativeDeviceOrientation.portraitDown:
-        nativeRotation = 180;
-        break;
-      case NativeDeviceOrientation.landscapeLeft:
-        nativeRotation = 270;
-        break;
-      case NativeDeviceOrientation.unknown:
-      default:
-        break;
-    }
-
-    return ((nativeRotation - widget.sensorOrientation! + 450) % 360) ~/ 90;
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    final orientation = MediaQuery.of(context).orientation;
-    double frameHeight = widget.width;
-    double frameWidth = widget.height;
-
-    return ClipRect(
-      child: FittedBox(
-        fit: widget.fit,
-        child: RotatedBox(
-          quarterTurns: orientation == Orientation.landscape ? landscapeLeft ? 1 : 3 : 0,
-          child: SizedBox(
-            width: frameWidth,
-            height: frameHeight,
-            child: Texture(textureId: widget.textureId!),
-          ),
-        ),
-      ),
-    );
-
-    return NativeDeviceOrientationReader(
-      builder: (context) {
-        var nativeOrientation =
-            NativeDeviceOrientationReader.orientation(context);
-
-        double frameHeight = widget.width;
-        double frameWidth = widget.height;
-
-        return ClipRect(
-          child: FittedBox(
-            fit: widget.fit,
-            child: RotatedBox(
-              quarterTurns: _getRotationCompensation(nativeOrientation),
-              child: SizedBox(
-                width: frameWidth,
-                height: frameHeight,
-                child: Texture(textureId: widget.textureId!),
-              ),
-            ),
-          ),
-        );
-      },
-    );
-  }
-}
+// import 'dart:async';
+//
+// import 'package:flutter/material.dart';
+// import 'package:mobile_scanner/src/objects/preview_details.dart';
+//
+// class Preview extends StatefulWidget {
+//   final double width, height;
+//   final double targetWidth, targetHeight;
+//   final int? textureId;
+//   final int? sensorOrientation;
+//   final BoxFit fit;
+//
+//   Preview({
+//     Key? key,
+//     required PreviewDetails previewDetails,
+//     required this.targetWidth,
+//     required this.targetHeight,
+//     required this.fit,
+//   })  : textureId = previewDetails.textureId,
+//         width = previewDetails.width!.toDouble(),
+//         height = previewDetails.height!.toDouble(),
+//         sensorOrientation = previewDetails.sensorOrientation as int?,
+//         super(key: key);
+//
+//   @override
+//   State<Preview> createState() => _PreviewState();
+// }
+//
+// class _PreviewState extends State<Preview> {
+//
+//   final _streamSubscriptions = <StreamSubscription<dynamic>>[];
+//   bool landscapeLeft = false;
+//
+//   @override
+//   void initState() {
+//     super.initState();
+//     _streamSubscriptions.add(
+//       magnetometerEvents.listen(
+//             (MagnetometerEvent event) {
+//               if (event.x <= 0) {
+//                 landscapeLeft = true;
+//               } else {
+//                 landscapeLeft = false;
+//               }
+//         },
+//       ),
+//     );
+//   }
+//
+//   @override
+//   void dispose() {
+//     super.dispose();
+//     for (final subscription in _streamSubscriptions) {
+//       subscription.cancel();
+//     }
+//   }
+//
+//
+//   int _getRotationCompensation(NativeDeviceOrientation nativeOrientation) {
+//     int nativeRotation = 0;
+//     switch (nativeOrientation) {
+//       case NativeDeviceOrientation.portraitUp:
+//         nativeRotation = 0;
+//         break;
+//       case NativeDeviceOrientation.landscapeRight:
+//         nativeRotation = 90;
+//         break;
+//       case NativeDeviceOrientation.portraitDown:
+//         nativeRotation = 180;
+//         break;
+//       case NativeDeviceOrientation.landscapeLeft:
+//         nativeRotation = 270;
+//         break;
+//       case NativeDeviceOrientation.unknown:
+//       default:
+//         break;
+//     }
+//
+//     return ((nativeRotation - widget.sensorOrientation! + 450) % 360) ~/ 90;
+//   }
+//
+//   @override
+//   Widget build(BuildContext context) {
+//     final orientation = MediaQuery.of(context).orientation;
+//     double frameHeight = widget.width;
+//     double frameWidth = widget.height;
+//
+//     return ClipRect(
+//       child: FittedBox(
+//         fit: widget.fit,
+//         child: RotatedBox(
+//           quarterTurns: orientation == Orientation.landscape ? landscapeLeft ? 1 : 3 : 0,
+//           child: SizedBox(
+//             width: frameWidth,
+//             height: frameHeight,
+//             child: Texture(textureId: widget.textureId!),
+//           ),
+//         ),
+//       ),
+//     );
+//
+//     return NativeDeviceOrientationReader(
+//       builder: (context) {
+//         var nativeOrientation =
+//             NativeDeviceOrientationReader.orientation(context);
+//
+//         double frameHeight = widget.width;
+//         double frameWidth = widget.height;
+//
+//         return ClipRect(
+//           child: FittedBox(
+//             fit: widget.fit,
+//             child: RotatedBox(
+//               quarterTurns: _getRotationCompensation(nativeOrientation),
+//               child: SizedBox(
+//                 width: frameWidth,
+//                 height: frameHeight,
+//                 child: Texture(textureId: widget.textureId!),
+//               ),
+//             ),
+//           ),
+//         );
+//       },
+//     );
+//   }
+// }

@@ -8,25 +8,15 @@ environment:
   flutter: ">=2.5.0"
   flutter: ">=2.5.0"
 
 
 dependencies:
 dependencies:
-  native_device_orientation: ^1.0.0
-  sensors_plus: ^1.2.1
   flutter:
   flutter:
     sdk: flutter
     sdk: flutter
 
 
 dev_dependencies:
 dev_dependencies:
   flutter_test:
   flutter_test:
     sdk: flutter
     sdk: flutter
-  flutter_lints: ^1.0.0
+  flutter_lints: ^1.0.4
 
 
-# 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:
 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:
   plugin:
     platforms:
     platforms:
       android:
       android:
@@ -36,34 +26,3 @@ flutter:
         pluginClass: MobileScannerPlugin
         pluginClass: MobileScannerPlugin
       macos:
       macos:
         pluginClass: MobileScannerPlugin
         pluginClass: MobileScannerPlugin
-
-  # 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