I'm taking a photo with the newest camera plugin version and I'm using code from flutter example. This is how I pick a camera:
final cameras = await availableCameras();
final firstCamera = cameras.first;
This is inside init:
_cameraController = CameraController(
widget.camera,
ResolutionPreset.medium,
enableAudio: false,
);
This is the rest of the relevant code:
Future _takePhoto(BuildContext context) async {
try {
await _initializeControllerFuture;
final path = join(
(await getTemporaryDirectory()).path,
'${DateTime.now()}.png',
);
await _cameraController.takePicture(path);
setState(() {
_imagePath = path;
});
} catch (e) {
print(e);
}
}
Afterwards, I show the photo to the user with Image.file(File(_imagePath))
and later I send the photo to API.
The problem is that the photo is sometimes captured with a wrong orientation. (I'm sure about this because the photo is also rotated in the database.) For example, on 3 years old Xiaomi phone, it works flawlessly, but on a certain new Samsung phone, the photo is always rotated.
How to make sure that the rotation is always correct? (Even on ios devices)
Right-click the image and select Details to reveal a screen with metadata, including EXIF data, that you can adjust if the image supports it. Force a preferred orientation. Rotate the image, then save it. That process reconstructs the image along the requested dimensions.
This worked for me:
import 'package:image/image.dart' as img;
...
final img.Image capturedImage = img.decodeImage(await File(path).readAsBytes());
final img.Image orientedImage = img.bakeOrientation(capturedImage);
await File(path).writeAsBytes(img.encodeJpg(orientedImage));
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