Simple Async with AlertDialog

MainActivit.java:

public class MainActivity extends MvpAppCompatActivity implements HelloWorldView {
	@InjectPresenter
	HelloWorldPresenter mHelloWorldPresenter;
	private TextView mTimerTextView;
	private AlertDialog mMessageDialog;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);

		mTimerTextView = (TextView) findViewById(R.id.timer_text_view);
	}

	@Override
	public void showTimer() {
		mTimerTextView.setVisibility(View.VISIBLE);
	}

	@Override
	public void hideTimer() {
		mTimerTextView.setVisibility(View.GONE);
	}

	@Override
	public void setTimer(int seconds) {
		mTimerTextView.setText(getString(R.string.timer, seconds));
	}

	@Override
	public void showMessage(int message) {
		mMessageDialog = new AlertDialog.Builder(this)
				.setTitle(R.string.app_name)
				.setMessage(message)
				.setPositiveButton(android.R.string.ok, null)
				.setOnDismissListener(new DialogInterface.OnDismissListener() {
					@Override
					public void onDismiss(DialogInterface dialogInterface) {
						mHelloWorldPresenter.onDismissMessage();
					}
				})
				.show();
	}

	@Override
	public void hideMessage() {
		if (mMessageDialog != null) {
			mMessageDialog.dismiss();
		}
	}
}

HelloWorldPresenter.java: ```java @InjectViewState public class HelloWorldPresenter extends MvpPresenter { public HelloWorldPresenter() { AsyncTask asyncTask = new AsyncTask() { @Override protected void onPreExecute() { getViewState().showTimer(); }

		@Override
		protected Void doInBackground(Void... voids) {
			for (int i = 2; i > 0; i--) {
				publishProgress(i);
				sleepSecond();
			}
			return null;
		}

		@Override
		protected void onProgressUpdate(Integer... values) {
			getViewState().setTimer(values[0]);
		}

		@Override
		protected void onPostExecute(Void aVoid) {
			getViewState().hideTimer();
			getViewState().showMessage(R.string.hello_world);
		}

		private void sleepSecond() {
			try {
				TimeUnit.SECONDS.sleep(1);
			} catch (InterruptedException e) {
				// pass
			}
		}
	};

	asyncTask.execute();
}

public void onDismissMessage() {
	getViewState().hideMessage();
}

}

<br />
HelloWorldView.java:
```java
public interface HelloWorldView extends MvpView {
	void showTimer();

	void hideTimer();

	void setTimer(int seconds);

	void showMessage(int message);

	void hideMessage();
}

Screen video capture