public void ReturnChosenFile(string path)
            {
                Intent data = new Intent();

                data.PutExtra("path", path);
                _activity.HandleActivityResult(_requestCode, Result.Ok, data);
            }
            public void ReturnProtocol(string protocolId)
            {
                Intent intent = new Intent();

                intent.PutExtra("protocolId", protocolId);
                _testControllableSelectStorageLocationActivity.HandleActivityResult(_requestCode, Result.FirstUser + 825 /*fs select ok*/, intent);
            }
            public void ReturnSelectedFile(string selectedUri)
            {
                Intent data = new Intent();

                data.PutExtra("path", selectedUri);
                _activity.HandleActivityResult(_requestCode, Result.Ok, data);
            }
            public void PrepareFileChooser(string protocolId)
            {
                Intent data = new Intent();

                data.PutExtra("path", protocolId + "://");
                _testControllableSelectStorageLocationActivity.HandleActivityResult(_browseRequestCode, (Result)FileStorageResults.FileChooserPrepared, data);
            }