ImageCropper use with Uint8List file -flutter - flutter

Question

I'm using image_picker & ImageCropper packages. I want to save a user-given picture in firestore database. So, I use functions like this.
First, set File? _image;
Functions for cropping & picking
Future _pickImage(ImageSource source) async {
Navigator.of(context).pop();
try {
final image = await ImagePicker().pickImage(source: source);
if (image == null) return;
File? img = File(image.path);
img = await _cropImage(imageFile: img);
setState(() {
_image = img;
});
} on PlatformException catch (e) {
print(e);
Navigator.of(context).pop();
}
}
Future<File?> _cropImage({required File imageFile}) async {
CroppedFile? croppedImage =
await ImageCropper().cropImage(sourcePath: imageFile.path);
if (CroppedFile == null) return null;
return File(croppedImage!.path);
}
and use this to save data in firestore
Future<String> uploadImageToStorage(
File file,
) async {
file
Reference ref =
_storage.ref().child("profilePics").child(_auth.currentUser!.uid);
UploadTask uploadTask = ref.putData(file);
TaskSnapshot snap = await uploadTask;
String downloadUrl = await snap.ref.getDownloadURL();
return downloadUrl;
}
Above function not work for File type data, It support for Uint8List. So, What can I do for this?
Next problem is, I'm getting File type data with ImagePicker for profile picture. Is it not problem?

Answer 1

Try changing your _cropImage-Method to return XFile? like this:
Future<XFile?> _cropImage({required File imageFile}) async {
CroppedFile? croppedImage =
await ImageCropper().cropImage(sourcePath: imageFile.path);
if (CroppedFile == null) return null;
return XFile(croppedImage!.path);
}
You also have to change the paramter of uploadImageToStorage to XFile file. Then you can use file!.readAsBytes(); to get a Uint8List.
Future<String> uploadImageToStorage(
XFile file,
) async {
Reference ref =
_storage.ref().child("profilePics").child(_auth.currentUser!.uid);
final fileBytes = await file.readAsBytes();
UploadTask uploadTask = ref.putData(fileBytes);
TaskSnapshot snap = await uploadTask;
String downloadUrl = await snap.ref.getDownloadURL();
return downloadUrl;
}