1 package com.example.myact4;
2
3 import android.app.AlertDialog;
4 import android.content.DialogInterface;
5 import android.os.Bundle;
6 import android.os.Handler;
7 import android.os.Message;
8 import android.support.v7.app.ActionBarActivity;
9 import android.view.View;
10 import android.view.View.OnClickListener;
11 import android.widget.Button;
12 import android.widget.TextView;
13 import android.widget.Toast;
14 /**
15 * AlertDialog练习
16 * @author shaobn
17 *
18 */
19 public class MainActivity extends ActionBarActivity {
20 private Button button;
21 private TextView tView;
22 @Override
23 protected void onCreate(Bundle savedInstanceState) {
24 super.onCreate(savedInstanceState);
25 setContentView(R.layout.activity_main);
26 button = (Button) this.findViewById(R.id.button1);
27 tView = (TextView) this.findViewById(R.id.textView1);
28 final Handler handler = new Handler(){
29 @Override
30 public void handleMessage(Message msg) {
31 // TODO Auto-generated method stub
32 super.handleMessage(msg);
33 int num = msg.arg1;
34 MainActivity.this.tView.setText(String.valueOf(num));
35 Toast.makeText(MainActivity.this, Thread.currentThread().getName(), Toast.LENGTH_LONG).show();
36 }
37 };
38 button.setOnClickListener(new OnClickListener() {
39
40 @Override
41 public void onClick(View arg0) {
42 // TODO Auto-generated method stub
43 AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
44 builder.setIcon(R.drawable.ic_launcher);
45 builder.setTitle("友情提示");
46 builder.setMessage("您确定要删除吗？");
47 builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
48
49 @Override
50 public void onClick(DialogInterface arg0, int arg1) {
51 // TODO Auto-generated method stub
52 arg0.cancel();
53 }
54 });
55 builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
56
57 @Override
58 public void onClick(DialogInterface arg0, int arg1) {
59 // TODO Auto-generated method stub
60 Runnable runnable=new Runnable() {
61
62 @Override
63 public void run() {
64 // TODO Auto-generated method stub
65 Message message = new Message();
66 message.arg1 = 3;
67 handler.sendMessage(message);
68
69 }
70 };
71 new Thread(runnable).start();
72 }
73 });
74 AlertDialog alertDialog = builder.create();
75 alertDialog.show();
76 }
77 });
78
79
80 }
81 }
