Android之Service

package com.example.mars_2000_service;

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

public class FirstService extends Service {

@Override
public IBinder onBind(Intent intent) {
System.out.println("Service onBind");
return null;
}

// 当创建一个Servcie对象之后，会首先调用这个函数
@Override
public void onCreate() {
// TODO Auto-generated method stub
super.onCreate();
System.out.println("Service onCreate");
}

@Override
public int onStartCommand(Intent intent, int flags, int startId) {
// TODO Auto-generated method stub
System.out.println("flags--->" + flags);
System.out.println("startId--->" + startId);
System.out.println("Service onStartCommand");
return START_NOT_STICKY;
}

@Override
public void onDestroy() {
// TODO Auto-generated method stubo
System.out.println("Service onDestory");
super.onDestroy();
}
}

public class MainActivity extends Activity {
private Button startServiceButton = null;
private Button stopServiceButton = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

startServiceButton = (Button) findViewById(R.id.startService);
startServiceButton.setOnClickListener(new StartServiceListener());
stopServiceButton = (Button) findViewById(R.id.stopService);
stopServiceButton.setOnClickListener(new StopServiceListener());
System.out.println("Activity onCreate");

/*if (savedInstanceState == null) {
getSupportFragmentManager().beginTransaction()
.add(R.id.container, new PlaceholderFragment()).commit();
}*/
}

class StartServiceListener implements OnClickListener {
@Override
public void onClick(View v) {
Intent intent = new Intent();
intent.setClass(MainActivity.this, FirstService.class);
startService(intent);
}
}

class StopServiceListener implements OnClickListener {
@Override
public void onClick(View v) {
Intent intent = new Intent();
intent.setClass(MainActivity.this, FirstService.class);
stopService(intent);
}
}

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.mars_2000_service"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="19" />

<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.mars_2000_service.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service android:name=".FirstService"></service>
</application>

</manifest>