AlertDialog with an OK button

package com.example.kiosk.dialog;

import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.content.DialogInterface;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;


public class MainActivity extends ActionBarActivity {

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

        DisplayDialog();
    }

    private void DisplayDialog() {
        Builder MyDialogBuilder = new AlertDialog.Builder(this);
        MyDialogBuilder.setTitle("Warning");
        MyDialogBuilder.setMessage("Hello World!");
        MyDialogBuilder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {

            }
        });
        MyDialogBuilder.show();
    }


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UIAlertView in iOS Swift