Android Lab: Dialog with Custom Layout - Create Custom Dialog program

gistfile1.java

package com.example.androidlab;

import android.os.Bundle;
import android.app.Activity;
import android.app.Dialog;
import android.content.Context;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class MainActivity extends Activity {
  final Context context = this;

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

		Button button = (Button) findViewById(R.id.buttonCustomDialog);

		// Add button listener
		button.setOnClickListener(new OnClickListener() {
			public void onClick(View arg0) {

				// Custom dialog
				final Dialog dialog = new Dialog(context);
				dialog.setContentView(R.layout.custom_dialog);
				dialog.setTitle("Edit");
				
				Button dialogButton = (Button) dialog.findViewById(R.id.buttonOK);
				// if button is clicked, close the custom dialog
				dialogButton.setOnClickListener(new OnClickListener() {
					@Override
					public void onClick(View v) {
						dialog.dismiss();
					}
				});				
				dialog.show();
			}
		});
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.main, menu);
		return true;
	}
}