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：

package tk.handleractivity;

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;



public class MyHangler extends Activity {

    private Button startButton=null;
    private Button endButton=null;
    
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.myhangler);
        startButton=(Button)findViewById(R.id.startButton);
        startButton.setOnClickListener(new StartbuttonListener());
        endButton=(Button)findViewById(R.id.endButton);
        endButton.setOnClickListener(new EndbuttonListener());
        
        
    }

    class StartbuttonListener implements OnClickListener{
        @Override
        public void onClick(View v) {
            handler.post(updateThead);
        }        
    }
    class EndbuttonListener implements OnClickListener{
        @Override
        public void onClick(View v) {
            handler.removeCallbacks(updateThead);
        }        
    }
    
    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.myhangler, menu);
        return true;
    }
    Handler handler=new Handler();
    Runnable updateThead=new Runnable() {
        
        @Override
        public void run() {
            System.out.println("UpdateThead");
            handler.postDelayed(updateThead, 3000);
        }
    };
}

XML布局文件：

<?xml version= "1.0" encoding ="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width= "fill_parent"
    android:layout_height= "fill_parent"
    >

    <Button
        android:id="@+id/startButton"
        android:layout_width= "fill_parent"
        android:layout_height= "wrap_content"
        android:text="start"
        />
     <Button
        android:id="@+id/endButton"
        android:layout_width= "fill_parent"
        android:layout_height= "wrap_content"
        android:text="end"
        />
    
    
    
</LinearLayout>