White/blank screen after close camera in Flutter - flutter

Question

I have a widget to take pictures on my app working like so:
final File imageFile =
await ImagePicker.pickImage(source: ImageSource.camera).then((test) {
print('TEST $test');
return test;
});
I can open the camera without any error and also take the picture but when I try to go back or accept the picture I've taken the app displays an white screen and the console show no errors at all.
This is failing on a real device (Xiaomi Redmi Note 8t) but it works on Android Emulator.
The only message I can see is Lost connection to device. when I take the camera

Answer 1

Fixed adding a try catch:
Future<Null> _pickImageFromCamera(BuildContext context, int index) async {
File imageFile;
try {
imageFile = await ImagePicker.pickImage(source: ImageSource.camera)
.then((picture) {
return picture; // I found this .then necessary
});
} catch (eror) {
print('error taking picture ${error.toString()}');
}
setState(() => this._imageFile = imageFile);
}

Answer 2

I found the solution for flutter 2
In Android
You need to add this to your 3 manifest (debug, main , profile)
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
Then pick the image with a try catch, like this
Future getbehind() async {
try{
final pickedFile = await picker.getImage(source: (ImageSource.camera:ImageSource.gallery),)
.then((value) {
setState(() {
if (value != null) {
behind = File(value.path);
} else {
print('No image selected.');
}
});
});
}catch(e){
}
Run the app in a release mode and its done!