启动形式Service

定义一个类HelloIntentService：

package com.luohaibo.testdemo11;

import android.app.IntentService;

import android.content.Intent;

public class HelloIntentService extends IntentService {

    public HelloIntentService() {
        // TODO Auto-generated constructor stub
        super("HelloIntentService");
    }
    @Override
    protected void onHandleIntent(Intent intent) {
        // TODO Auto-generated method stub
        System.out.println("休息5秒！");
        try {
            Thread.sleep(8000);
        } catch (Exception e) {
            // TODO: handle exception
            e.printStackTrace();
        }

    }
    @Override
    public void onDestroy() {
        // TODO Auto-generated method stub
        System.out.println("执行完onHandleIntent之后自动调用");
        super.onDestroy();
    }

}

定义一个类HelloService：

package com.luohaibo.testdemo11;

import android.app.Service;
import android.content.Intent;
import android.os.IBinder;

public class HelloService extends Service {

    public HelloService() {
        // TODO Auto-generated constructor stub
    }
    
    @Override
    public void onCreate() {
        // TODO Auto-generated method stub
        super.onCreate();
    }
    @Override
    public void onDestroy() {
        // TODO Auto-generated method stub
        super.onDestroy();
    }
    @Override
    public void onStart(Intent intent, int startId) {
        // TODO Auto-generated method stub
        super.onStart(intent, startId);
        
        System.out.println("启动Service，休眠10秒");
        try {
            Thread.sleep(10000);
        } catch (Exception e) {
            // TODO: handle exception
            e.printStackTrace();
        }
    }
    

    @Override
    public IBinder onBind(Intent intent) {
        // TODO Auto-generated method stub
        return null;
    }

}

main代码如下：

package com.luohaibo.testdemo11;

import com.luohaibo.testdemo11.R.id;

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

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Button button =(Button)findViewById(R.id.button1);
        button.setOnClickListener(new OnClickListener() {
            
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                Intent intent = new Intent(MainActivity.this,HelloIntentService.class);
                startService(intent);
                
            }
        });
        Button button2 = (Button)findViewById(R.id.button2);
        button2.setOnClickListener(new OnClickListener() {
            
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                Intent  intent = new Intent(MainActivity.this,HelloIntentService.class);
                stopService(intent);
                
            }
        });
        Button button3 = (Button)findViewById(R.id.button3);
        button3.setOnClickListener(new OnClickListener() {
            
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                Intent intent = new Intent(MainActivity.this, HelloService.class);
                startService(intent);
                
            }
        });
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

}

布局文件：

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

   <Button android:id="@+id/button1"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:text="启动IntentService"/>
   
   <Button android:id="@+id/button2"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:text="停止IntentService"/>
   
   <Button android:id="@+id/button3"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:text="启动Service"/>
   

</LinearLayout>

需要在AndroidManifest.xml中声明Service

<service android:name="com.luohaibo.testdemo11.HelloService"></service>
<service android:name="com.luohaibo.testdemo11.HelloIntentService"></service>