问题描述
这是我的getimage函数。拍照后，将其裁剪。然后我转到下一页。一切正常。但是今天，我遇到了一个错误。这是为什么？我听不懂我应该更新拍击声还是其他？
getimage(ImageSource source,BuildContext context) async {
this.setState(() {
_inProcess = true;
});
// File image = await ImagePicker.pickImage(source: source);
final _picker = ImagePicker();
PickedFile image = await _picker.getimage(source: source);
// File file_image = File(image.path);
if (image != null) {
// Remove crop attribute if we don't want to resize the image
File cropped = await ImageCropper.cropImage(
sourcePath: image.path,aspectRatio: CropAspectRatio(ratioX: 1,ratioY: 1),compressQuality: 100,// 100 means no compression
maxWidth: 700,maxHeight: 700,compressFormat: ImageCompressFormat.jpg,androidUiSettings: AndroidUiSettings(
toolbarColor: primaryColor,toolbarTitle: "RPS Cropper",statusBarColor: primaryColor,backgroundColor: Colors.white,//toolbarWidgetColor: primaryColor,activeControlsWidgetColor: primaryColor,//dimmedLayerColor: primaryColor,cropFrameColor: primaryColor,cropGridColor: primaryColor,),);
print('======= After Cropped =======');
this.setState(() {
_selectedFile = cropped;
//_selectedFile = File(image.path);
_inProcess = false;
//_showDelete = true;
isTaken = true;
});
if (_selectedFile != null) {
print('====== Leaving Image Evaluation =====');
// Navigator.pop(context);
this.setState(() {
_inProcess = false;
});
await Navigator.pushReplacement(
context,MaterialPageRoute(
builder: (context) => UploadPictureInfo(
image: _selectedFile,);
print('After pop and push Image Evaluation');
} else {
//Navigator.of(context).pop();
this.setState(() {
//_selectedFile = cropped;
_inProcess = false;
// //_showDelete = true;
// isTaken = true;
});
}
} else {
this.setState(() {
_inProcess = false;
});
}
}
这是错误消息。
I/BitmapCropTask( 9329): Should crop: true
I/Flutter ( 9329): ======= After Cropped =======
I/Flutter ( 9329): ====== Leaving Image Evaluation =====
E/Flutter ( 9329): [ERROR:Flutter/lib/ui/ui_dart_state.cc(177)] Unhandled Exception: Looking up a deactivated widget's ancestor is unsafe.
E/Flutter ( 9329): At this point the state of the widget's element tree is no longer stable.
E/Flutter ( 9329): To safely refer to a widget's ancestor in its dispose() method,save a reference to the ancestor by calling dependOnInheritedWidgetofExactType() in the widget's didChangeDependencies() method.
E/Flutter ( 9329): #0 Element._debugCheckStateIsActiveForAncestorLookup.<anonymous closure> (package:Flutter/src/widgets/framework.dart:3904:9)
E/Flutter ( 9329): #1 Element._debugCheckStateIsActiveForAncestorLookup (package:Flutter/src/widgets/framework.dart:3918:6)
E/Flutter ( 9329): #2 Element.findAncestorStateOfType (package:Flutter/src/widgets/framework.dart:4037:12)
E/Flutter ( 9329): #3 Navigator.of (package:Flutter/src/widgets/navigator.dart:2216:40)
E/Flutter ( 9329): #4 Navigator.pushReplacement (package:Flutter/src/widgets/navigator.dart:1876:22)
E/Flutter ( 9329): #5 _ImageEvaluationState.getimage (package:PhotoEarn/screens/camera/image_evaluation.dart:199:25)
E/Flutter ( 9329): <asynchronous suspension>
E/Flutter ( 9329): #6 _ImageEvaluationState.build.<anonymous closure>.<anonymous closure> (package:PhotoEarn/screens/camera/image_evaluation.dart:474:33)
E/Flutter ( 9329): #7 _InkResponseState._handleTap (package:Flutter/src/material/ink_well.dart:993:19)
E/Flutter ( 9329): #8 _InkResponseState.build.<anonymous closure> (package:Flutter/src/material/ink_well.dart:1111:38)
E/Flutter ( 9329): #9 GestureRecognizer.invokeCallback (package:Flutter/src/gestures/recognizer.dart:183:24)
E/Flutter ( 9329): #10 TapGestureRecognizer.handleTapUp (package:Flutter/src/gestures/tap.dart:598:11)
E/Flutter ( 9329): #11 BaseTapGestureRecognizer._checkUp (package:Flutter/src/gestures/tap.dart:287:5)
E/Flutter ( 9329): #12 BaseTapGestureRecognizer.handlePrimaryPointer (package:Flutter/src/gestures/tap.dart:222:7)
E/Flutter ( 9329): #13 PrimaryPointerGestureRecognizer.handleEvent (package:Flutter/src/gestures/recognizer.dart:476:9)
E/Flutter ( 9329): #14 PointerRouter._dispatch (package:Flutter/src/gestures/pointer_router.dart:77:12)
E/Flutter ( 9329): #15 PointerRouter._dispatchEventToRoutes.<anonymous closure> (package:Flutter/src/gestures/pointer_router.dart:122:9)
E/Flutter ( 9329): #16 _LinkedHashMapMixin.forEach (dart:collection-patch/compact_hash.dart:377:8)
E/Flutter ( 9329): #17 PointerRouter._dispatchEventToRoutes (package:Flutter/src/gestures/pointer_router.dart:120:18)
E/Flutter ( 9329): #18 PointerRouter.route (package:Flutter/src/gestures/pointer_router.dart:106:7)
E/Flutter ( 9329): #19 GestureBinding.handleEvent (package:Flutter/src/gestures/binding.dart:370:19)
E/Flutter ( 9329): #20 GestureBinding.dispatchEvent (package:Flutter/src/gestures/binding.dart:350:22)
E/Flutter ( 9329): #21 RendererBinding.dispatchEvent (package:Flutter/src/rendering/binding.dart:266:11)
E/Flutter ( 9329): #22 GestureBinding.handlePointerEvent (package:Flutter/src/gestures/binding.dart:305:7)
E/Flutter ( 9329): #23 GestureBinding._flushPointerEventQueue (package:Flutter/src/gestures/binding.dart:240:7)
E/Flutter ( 9329): #24 GestureBinding._handlePointerDataPacket (package:Flutter/src/gestures/binding.dart:213:7)
E/Flutter ( 9329): #25 _rootRunUnary (dart:async/zone.dart:1206:13)
E/Flutter ( 9329): #26 _CustomZone.runUnary (dart:async/zone.dart:1100:19)
E/Flutter ( 9329): #27 _CustomZone.runUnaryguarded (dart:async/zone.dart:1005:7)
E/Flutter ( 9329): #28 _invoke1 (dart:ui/hooks.dart:265:10)
E/Flutter ( 9329): #29 _dispatchPointerDataPacket (dart:ui/hooks.dart:174:5)
E/Flutter ( 9329):
D/EGL_emulation( 9329): eglMakeCurrent: 0xddd058e0: ver 3 0 (tinfo 0xdcaa8ec0)
D/EGL_emulation( 9329): eglMakeCurrent: 0xddd19e80: ver 3 0 (tinfo 0xdcab1c40)
D/EGL_emulation( 9329): eglMakeCurrent: 0xddd19e80: ver 3 0 (tinfo 0xdcab1c40)
D/EGL_emulation( 9329): eglMakeCurrent: 0xddd058e0: ver 3 0 (tinfo 0xdcaa8ec0)
D/eglCodecCommon( 9329): setVertexArrayObject: set vao to 0 (0) 53 0
D/EGL_emulation( 9329): eglMakeCurrent: 0xddd19e80: ver 3 0 (tinfo 0xdcab1c40)
请查看我的代码！我期待着您的回音。非常感谢！
解决方法
我找到了解决方法。
我改用这种类型的导航器。
order