How Android creates an alert box _android

The example in this article describes how Android creates an alert box. Share to everyone for your reference. Specifically as follows:

Package com.akwolf.android;
Import android.app.Activity;
Import Android.app.AlertDialog;
Import Android.os.Bundle;
Import Android.view.View;
Import Android.view.View.OnClickListener;
Import Android.widget.Button;
The public class Dialogactivity extends activity {/** called the ' when ' is the ' The activity ' is a
 -a-created.
 @Override public
 void OnCreate (Bundle savedinstancestate) {
  super.oncreate (savedinstancestate);
  Setcontentview (r.layout.main);
  DIALOGBTN = (Button) Findviewbyid (r.id.button1);
  Dialogbtn.setonclicklistener (New Onclicklistener () {
   @Override public
   void OnClick (View v) {
    new Alertdialog.builder (dialogactivity.this).
      SetIcon (R.drawable.icon). Settitle ("infomation")
      . Setmessage ("Hello World"), Show ();}}

I hope this article will help you with your Android program.