localPath function
Implementation
Future<String> localPath(
{Future<Directory> Function() fetchApplicationDirectory =
getApplicationDocumentsDirectory}) async {
final Directory directory = await fetchApplicationDirectory();
final String dirPath = '${directory.path}/Pictures/sil-mobile';
await Directory(dirPath).create(recursive: true);
final String filePath = '$dirPath/{$DateTime.now()}.png';
return filePath;
}