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@ -26,7 +26,8 @@ class ReaderWidget extends StatefulWidget { |
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this.scanDelaySuccess = const Duration(milliseconds: 1000), // 1000ms delay |
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this.scanDelaySuccess = const Duration(milliseconds: 1000), // 1000ms delay |
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this.cropPercent = 0.5, // 50% of the screen |
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this.cropPercent = 0.5, // 50% of the screen |
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this.resolution = ResolutionPreset.high, |
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this.resolution = ResolutionPreset.high, |
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this.loading = const DecoratedBox(decoration: BoxDecoration(color: Colors.black)), |
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this.loading = |
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const DecoratedBox(decoration: BoxDecoration(color: Colors.black)), |
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}); |
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}); |
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final Function(CodeResult) onScan; |
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final Function(CodeResult) onScan; |
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@ -46,7 +47,8 @@ class ReaderWidget extends StatefulWidget { |
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State<ReaderWidget> createState() => _ReaderWidgetState(); |
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State<ReaderWidget> createState() => _ReaderWidgetState(); |
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} |
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} |
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class _ReaderWidgetState extends State<ReaderWidget> with TickerProviderStateMixin, WidgetsBindingObserver { |
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class _ReaderWidgetState extends State<ReaderWidget> |
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with TickerProviderStateMixin, WidgetsBindingObserver { |
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List<CameraDescription> cameras = <CameraDescription>[]; |
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List<CameraDescription> cameras = <CameraDescription>[]; |
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CameraController? controller; |
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CameraController? controller; |
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bool _cameraOn = false; |
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bool _cameraOn = false; |
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@ -89,7 +91,6 @@ class _ReaderWidgetState extends State<ReaderWidget> with TickerProviderStateMix |
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if (cameras.isNotEmpty && !_cameraOn) { |
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if (cameras.isNotEmpty && !_cameraOn) { |
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onNewCameraSelected(cameras.first); |
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onNewCameraSelected(cameras.first); |
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} |
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} |
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break; |
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break; |
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case AppLifecycleState.inactive: |
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case AppLifecycleState.inactive: |
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break; |
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break; |
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@ -131,7 +132,8 @@ class _ReaderWidgetState extends State<ReaderWidget> with TickerProviderStateMix |
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cameraDescription, |
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cameraDescription, |
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widget.resolution, |
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widget.resolution, |
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enableAudio: false, |
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enableAudio: false, |
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imageFormatGroup: isAndroid() ? ImageFormatGroup.yuv420 : ImageFormatGroup.bgra8888, |
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imageFormatGroup: |
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isAndroid() ? ImageFormatGroup.yuv420 : ImageFormatGroup.bgra8888, |
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); |
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); |
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if (controller == null) { |
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if (controller == null) { |
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return; |
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return; |
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@ -144,6 +146,8 @@ class _ReaderWidgetState extends State<ReaderWidget> with TickerProviderStateMix |
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controller!.startImageStream(processImageStream); |
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controller!.startImageStream(processImageStream); |
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} on CameraException catch (e) { |
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} on CameraException catch (e) { |
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debugPrint('${e.code}: ${e.description}'); |
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debugPrint('${e.code}: ${e.description}'); |
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} catch (e) { |
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debugPrint('Error: $e'); |
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} |
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} |
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controller!.addListener(rebuildOnMount); |
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controller!.addListener(rebuildOnMount); |
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@ -179,7 +183,10 @@ class _ReaderWidgetState extends State<ReaderWidget> with TickerProviderStateMix |
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@override |
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@override |
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Widget build(BuildContext context) { |
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Widget build(BuildContext context) { |
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final bool isCameraReady = cameras.isNotEmpty && _cameraOn && controller != null && controller!.value.isInitialized; |
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final bool isCameraReady = cameras.isNotEmpty && |
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_cameraOn && |
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controller != null && |
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controller!.value.isInitialized; |
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final Size size = MediaQuery.of(context).size; |
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final Size size = MediaQuery.of(context).size; |
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final double cameraMaxSize = max(size.width, size.height); |
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final double cameraMaxSize = max(size.width, size.height); |
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final double cropSize = min(size.width, size.height) * widget.cropPercent; |
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final double cropSize = min(size.width, size.height) * widget.cropPercent; |
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@ -224,29 +231,29 @@ class _ReaderWidgetState extends State<ReaderWidget> with TickerProviderStateMix |
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_zoom = _scaleFactor; |
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_zoom = _scaleFactor; |
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}, |
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}, |
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onScaleUpdate: (ScaleUpdateDetails details) { |
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onScaleUpdate: (ScaleUpdateDetails details) { |
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_scaleFactor = (_zoom * details.scale).clamp(_minZoomLevel, _maxZoomLevel); |
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_scaleFactor = |
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(_zoom * details.scale).clamp(_minZoomLevel, _maxZoomLevel); |
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controller?.setZoomLevel(_scaleFactor); |
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controller?.setZoomLevel(_scaleFactor); |
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}, |
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}, |
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), |
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), |
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if (widget.showFlashlight) |
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if (widget.showFlashlight && isCameraReady) |
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Positioned( |
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Positioned( |
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bottom: 20, |
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bottom: 20, |
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left: 20, |
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left: 20, |
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child: FloatingActionButton( |
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child: FloatingActionButton( |
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onPressed: () { |
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onPressed: () { |
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if (controller != null) { |
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FlashMode mode = controller!.value.flashMode; |
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FlashMode mode = controller!.value.flashMode; |
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if (mode == FlashMode.torch) { |
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if (mode == FlashMode.torch) { |
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mode = FlashMode.off; |
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mode = FlashMode.off; |
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} else { |
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} else { |
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mode = FlashMode.torch; |
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mode = FlashMode.torch; |
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} |
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} |
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controller!.setFlashMode(mode); |
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controller?.setFlashMode(mode); |
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setState(() {}); |
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setState(() {}); |
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} |
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}, |
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}, |
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backgroundColor: Colors.black26, |
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backgroundColor: Colors.black26, |
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child: _FlashIcon(flashMode: controller!.value.flashMode)), |
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child: _FlashIcon( |
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flashMode: controller?.value.flashMode ?? FlashMode.off)), |
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), |
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), |
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], |
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], |
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); |
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); |
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Khoren Markosyan
2 years ago