Flutter image_gallery_saver image not-showing after saving - flutter

Question

I want to take a screenshot of my widget. For that, I am using the RepaintBoundary widget and to save the screenshot I use the image_gallery_saver plugin. But after saving the image it is not showing to the gallery. How to solve this issue?
class Utils {
static Future capture(GlobalKey key) async {
DateTime now;
now = DateTime.now();
if (key == null) return null;
final RenderRepaintBoundary boundary =
key.currentContext.findRenderObject();
final image = await boundary.toImage(pixelRatio: 3.0);
final byteData = await image.toByteData(format: ui.ImageByteFormat.png);
final pngByte = byteData.buffer.asUint8List();
// print(pngByte);
if (!(await Permission.storage.status.isGranted)) {
await Permission.storage.request();
}
final result = await ImageGallerySaver.saveImage(
Uint8List.fromList(pngByte),
quality: 90,
name:
'Screeshoot_${now.day.toString()}${now.hour.toString()}${now.minute.toString()}${now.second.toString()}');
return result;
// return pngByte;
}
}

Answer 1

I have done the same in my app but I have used the GallerySaver package instead.
First I have created a method that returns me the path where the image is located and then I use GallerySaver to save the image file.
Future<String> getImagePath() async {
RenderRepaintBoundary boundary = _renderQRandImageWidgetKey.currentContext.findRenderObject();
ui.Image image = await boundary.toImage(pixelRatio: 3.0);
ByteData byteData = await image.toByteData(format: ui.ImageByteFormat.png);
var pngBytes = byteData.buffer.asUint8List();
final tempDirectory = (await getTemporaryDirectory()).path;
final String filePath = '$tempDirectory/MyQRCode.png';
File imgFile = new File('$filePath');
await imgFile.writeAsBytes(pngBytes);
return filePath;
}
_saveImage(String userName) async {
try {
String filePath = await getImagePath();
bool isImageSaved = await GallerySaver.saveImage(filePath, albumName:"AlbumName");
SnackBar _snackbar = SnackBar(
content: isImageSaved ? Text('Image saved in gallery') : Text("There was an error while saving image"),
duration: const Duration(seconds: 1),
);
_scaffoldKey.currentState.showSnackBar(_snackbar);
} catch (exception) {
print("Error $exception");
SnackBar _snackbar = SnackBar(
content: Text('Something went wrong'),
duration: const Duration(seconds: 1),
);
_scaffoldKey.currentState.showSnackBar(_snackbar);
}