bagaimana caranya supaya upload selesai masuk ke layout lain

selamat sore teman2 saya mau bertanya tentang android studio, bagaimana caranya setelah selesai upload muncul pop-up upload berhasil dan masuk ke layout lain. in contoh kode yang saya pake (boleh copas dari internet).

             @Override
            public void onSuccess(int statusCode, Header[] headers, JSONObject response) {
                super.onSuccess(statusCode, headers, response);
                Log.d("Tag", statusCode + "");
                Log.d("Response", String.valueOf(response));

                try {
                    if (response.getString(KEY_SUCCESS) != null) {
                        String res = response.getString(KEY_SUCCESS);
                        if (Integer.parseInt(res) == 1) {

                            edttxt_title.setText("");
                            edttxt_description.setText("");
                            edttxt_tag.setText("");
                            selectedFilePath = "";
                            messageText.setText("No file chosen");
                            track_image.setImageBitmap(null);
                            Toast.makeText(getApplicationContext(), "uploaded successfully", Toast.LENGTH_SHORT).show();
                           // dialog.dismiss();

                        } else {
                            Toast.makeText(getApplicationContext(), "not uploaded", Toast.LENGTH_SHORT).show();
                          //  dialog.dismiss();
                        }
                    }
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }

mohon bantuanya,