requestPermissions method
Request all required permissions to access the existing backup files stored on the Media locations.
Implementation
Future<void> requestPermissions() async {
var statusStorage = await Permission.storage.status;
var statusManageStorage = await Permission.manageExternalStorage.status;
if (!statusStorage.isGranted) await Permission.storage.request();
if (!statusManageStorage.isGranted)
await Permission.manageExternalStorage.request();
}