安卓学习之多线程

看视频后自己编的，记录下来，以后忘了直接代码就行了。

java类：

View Code

 1 package tk.handleractivity;
 2 
 3 import android.app.Activity;
 4 import android.os.Bundle;
 5 import android.os.Handler;
 6 import android.view.Menu;
 7 import android.view.View;
 8 import android.view.View.OnClickListener;
 9 import android.widget.Button;
10 
11 
12 
13 public class MyHangler extends Activity {
14 
15     private Button startButton=null;
16     private Button endButton=null;
17     
18     @Override
19     public void onCreate(Bundle savedInstanceState) {
20         super.onCreate(savedInstanceState);
21         setContentView(R.layout.myhangler);
22         startButton=(Button)findViewById(R.id.startButton);
23         startButton.setOnClickListener(new StartbuttonListener());
24         endButton=(Button)findViewById(R.id.endButton);
25         endButton.setOnClickListener(new EndbuttonListener());
26         
27         
28     }
29 
30     class StartbuttonListener implements OnClickListener{
31         @Override
32         public void onClick(View v) {
33             handler.post(updateThead);
34         }        
35     }
36     class EndbuttonListener implements OnClickListener{
37         @Override
38         public void onClick(View v) {
39             handler.removeCallbacks(updateThead);
40         }        
41     }
42     
43     @Override
44     public boolean onCreateOptionsMenu(Menu menu) {
45         getMenuInflater().inflate(R.menu.myhangler, menu);
46         return true;
47     }
48     Handler handler=new Handler();
49     Runnable updateThead=new Runnable() {
50         
51         @Override
52         public void run() {
53             System.out.println("UpdateThead");
54             handler.postDelayed(updateThead, 3000);
55         }
56     };
57 }

XML布局文件：

View Code

 1 <?xml version= "1.0" encoding ="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     android:orientation="vertical"
 4     android:layout_width= "fill_parent"
 5     android:layout_height= "fill_parent"
 6     >
 7 
 8     <Button
 9         android:id="@+id/startButton"
10         android:layout_width= "fill_parent"
11         android:layout_height= "wrap_content"
12         android:text="start"
13         />
14      <Button
15         android:id="@+id/endButton"
16         android:layout_width= "fill_parent"
17         android:layout_height= "wrap_content"
18         android:text="end"
19         />
20     
21     
22     
23 </LinearLayout>