1 package zyf.EX_Ctrl_3_B; 2 import android.app.Activity; 3 import android.app.AlertDialog; 4 import android.os.Bundle; 5 public class EX_Ctrl_3_B extends Activity { 6 /** Called when the activity is first created. */ 7 @Override 8 public void onCreate(Bundle savedInstanceState) { 9 super.onCreate(savedInstanceState);10 /* 设置主屏布局*/11 setContentView(R.layout.main);12 /*新建一个AlertDialog.Builder对象*/13 AlertDialog.Builder my_ADialog =new AlertDialog.Builder(this);14 /*设置标题*/15 my_ADialog.setTitle("Android 提示");16 /*设置显示消息*/17 my_ADialog.setMessage("AlertDialog.Builder提示对话框消息!!");18 /*显示*/19 my_ADialog.show();20 }21 }