getExternalFilesDir method
storage/emulated/0/Android/data/[com.example.myapp]/files
context.getExternalFilesDir
External storage, app-only No (Android 4.4+ onwards)
Implementation
Future<String> getExternalFilesDir() async {
return await _channel.invokeMethod<String>('$_name/getExternalFilesDir') ??
'';
}