Android创建Alert框的方法

本文实例讲述了android创建alert框的方法。分享给大家供大家参考。具体如下：

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;
public class dialogactivity extends activity {
 /** called when the activity is first created. */
 button dialogbtn;
 @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();
   }
  });
 }
}

希望本文所述对大家的android程序设计有所帮助。