Android AlertDialog Example

Android AlertDialog Example :-

To ask user permission for “Exit ?” we can use Android AlertDialog with Yes or No Button. So, by clicking Yes we can Exit the Application and by clicking No we need not to do any action.

public class ExampleApp extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        AlertDialog.Builder alt_bld = new AlertDialog.Builder(this);
        alt_bld.setMessage("Do you want to close this window ?")
            .setCancelable(false)
            .setPositiveButton("Yes", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int id) {
                    // Action for 'Yes' Button
                }
            })
            .setNegativeButton("No", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int id) {
                    // Action for 'NO' Button
                    dialog.cancel();
                }
            });
        AlertDialog alert = alt_bld.create();
        // Title for AlertDialog
        alert.setTitle("Title");
        // Icon for AlertDialog
        alert.setIcon(R.drawable.icon);
        alert.show();
    }
}

The output will looks like