第二种是通过绑定的方式来启动Service。先看流程图，点击放大。

在这里我们使用了this.bindService(intent, myServiceConnection, Context.BIND_AUTO_CREATE); 来启动Service，当Service创建了同时绑定了之后，会回调我们定义的ServiceConnection()，从而传回IBinder接口，我们就能够调用Service中的方法了。这时候Activity就和Service实现了绑定，Activity退出了Service就相应的退出了。

<service android:enabled="true" android:name=".service.mediaplayer.BindMusicService"> <intent-filter> <action android:name="com.androidtest.service.mediaplayer.BindMusicService" /> </intent-filter> </service>

主要代码如下：

?[Copy to clipboard] Download zuiniuwang.java

        
            
/** 
            
*BinderMusicPlayerActivity.java 
            
*com.androidtest.activity.musicplayer 
            
* 
            
*Function：TODO 
            
* 
            
*verdateauthor 
            
*────────────────────────────────── 
            
*2011-5-17Leon 
            
* 
            
*Copyright(c)2011,TNTAllRightsReserved. 
            
*/ 
            
 
            
packagecom.androidtest.activity.musicplayer; 
            
 
            
importcom.androidtest.R; 
            
importcom.androidtest.service.mediaplayer.BindMusicService; 
            
importcom.androidtest.service.mediaplayer.MyBinder; 
            
importcom.androidtest.service.mediaplayer.MyMediaController; 
            
 
            
importandroid.app.Activity; 
            
importandroid.content.ComponentName; 
            
importandroid.content.Context; 
            
importandroid.content.Intent; 
            
importandroid.content.ServiceConnection; 
            
importandroid.os.Bundle; 
            
importandroid.os.IBinder; 
            
importandroid.util.Log; 
            
importandroid.view.View; 
            
importandroid.view.View.OnClickListener; 
            
importandroid.widget.Button; 
            
 
            
/** 
            
*ClassName:BinderMusicPlayerActivityFunction:TODOADDFUNCTIONReason:TODO 
            
*ADDREASON 
            
* 
            
*@authorLeon 
            
*@version 
            
*@sinceVer1.1 
            
*@Date2011-5-17 
            
*/ 
            
publicclassBinderMusicPlayerActivityextendsActivityimplements 
            
OnClickListener{ 
            
 
            
privatestaticfinalStringTAG=BinderMusicPlayerActivity.class 
            
.getSimpleName(); 
            
privateBindMusicServicebindMusicService; 
            
privateButtonplayButton,pauseButton,stopButton,closeActivityButton, 
            
exitActivityButton; 
            
 
            
@Override 
            
protectedvoidonCreate(BundlesavedInstanceState){ 
            
 
            
//TODOAuto-generatedmethodstub 
            
super.onCreate(savedInstanceState); 
            
Log.v(TAG,TAG+"onCreate()"); 
            
this.setContentView(R.layout.music_player_layout); 
            
findViews(); 
            
bindViews(); 
            
connection(); 
            
} 
            
 
            
privatevoidfindViews(){ 
            
playButton=(Button)this.findViewById(R.id.play); 
            
pauseButton=(Button)this.findViewById(R.id.pause); 
            
stopButton=(Button)this.findViewById(R.id.stop); 
            
closeActivityButton=(Button)this.findViewById(R.id.close); 
            
exitActivityButton=(Button)this.findViewById(R.id.exit); 
            
} 
            
 
            
privatevoidbindViews(){ 
            
playButton.setOnClickListener(this); 
            
pauseButton.setOnClickListener(this); 
            
stopButton.setOnClickListener(this); 
            
closeActivityButton.setOnClickListener(this); 
            
exitActivityButton.setOnClickListener(this); 
            
} 
            
 
            
privatevoidconnection(){ 
            
Log.v(TAG,TAG+"connection"); 
            
Intentintent=newIntent("com.androidtest.service.mediaplayer.BindMusicService"); 
            
this.startService(intent); 
            
this.bindService(intent,myServiceConnection,Context.BIND_AUTO_CREATE); 
            
 
            
} 
            
 
            
@Override 
            
publicvoidonClick(Viewview){ 
            
 
            
//TODOAuto-generatedmethodstub 
            
//TODOAuto-generatedmethodstub 
            
switch(view.getId()){ 
            
caseR.id.play: 
            
Log.d(TAG,"play......."); 
            
MyMediaController.play.execute(); 
            
break; 
            
caseR.id.pause: 
            
Log.d(TAG,"pause......."); 
            
MyMediaController.pause.execute(); 
            
break; 
            
caseR.id.stop: 
            
Log.d(TAG,"stop......."); 
            
MyMediaController.stop.execute(); 
            
break; 
            
caseR.id.close: 
            
Log.d(TAG,"close......."); 
            
this.finish(); 
            
break; 
            
caseR.id.exit: 
            
Log.d(TAG,"exit......."); 
            
this.finish(); 
            
this.stopService(newIntent("com.androidtest.service.mediaplayer.BindMusicService")); 
            
 
            
} 
            
 
            
} 
            
//调用bindService后Service调用onBind()后回调此函数 
            
privateServiceConnectionmyServiceConnection=newServiceConnection(){ 
            
 
            
@Override 
            
publicvoidonServiceConnected(ComponentNamename,IBinderbinder){ 
            
Log.v(TAG,TAG+"onServiceConnected"); 
            
//TODOAuto-generatedmethodstub 
            
bindMusicService=((MyBinder)binder).getService(); 
            
//给Controller设置Service初始化的MediaPlayer 
            
MyMediaController.mediaPlayer=bindMusicService.getMyMediaPlayer(); 
            
 
            
} 
            
 
            
@Override 
            
publicvoidonServiceDisconnected(ComponentNamename){ 
            
 
            
//TODOAuto-generatedmethodstub 
            
bindMusicService=null; 
            
Log.v(TAG,"..............onServiceDisconnected"); 
            
 
            
} 
            
 
            
}; 
            
//当Activityfinish时必须解绑不然会出现溢出 
            
 
            
publicvoidfinish(){ 
            
//TODOAuto-generatedmethodstub 
            
super.finish(); 
            
this.unbindService(myServiceConnection); 
            
 
            
} 
            
 
            
} 
            
 
            
/** 
            
*BindMusicService.java 
            
*com.androidtest.service.mediaplayer 
            
* 
            
*Function：TODO 
            
* 
            
*verdateauthor 
            
*────────────────────────────────── 
            
*2011-5-16Leon 
            
* 
            
*Copyright(c)2011,TNTAllRightsReserved. 
            
*/ 
            
 
            
packagecom.androidtest.service.mediaplayer; 
            
 
            
importcom.androidtest.R; 
            
 
            
importandroid.app.Service; 
            
importandroid.content.Intent; 
            
importandroid.media.MediaPlayer; 
            
importandroid.os.IBinder; 
            
importandroid.util.Log; 
            
 
            
/** 
            
*ClassName:BindMusicService 
            
*Function:TODOADDFUNCTION 
            
*Reason:TODOADDREASON 
            
* 
            
*@authorLeon 
            
*@version 
            
*@sinceVer1.1 
            
*@Date2011-5-16 
            
*/ 
            
publicclassBindMusicServiceextendsService{ 
            
 
            
privatestaticfinalStringTAG=BindMusicService.class.getSimpleName(); 
            
 
            
privateMediaPlayermyMediaPlayer; 
            
 
            
privateIBinderbinder=newMyBinder(this); 
            
 
            
publicMediaPlayergetMyMediaPlayer(){ 
            
returnmyMediaPlayer; 
            
} 
            
 
            
publicvoidsetMyMediaPlayer(MediaPlayermyMediaPlayer){ 
            
this.myMediaPlayer=myMediaPlayer; 
            
} 
            
 
            
@Override 
            
publicIBinderonBind(Intentintent){ 
            
Log.v(TAG,TAG+"onBind"); 
            
//TODOAuto-generatedmethodstub 
            
returnbinder; 
            
 
            
} 
            
 
            
@Override 
            
publicvoidonCreate(){ 
            
 
            
//TODOAuto-generatedmethodstub 
            
super.onCreate(); 
            
if(myMediaPlayer==null){ 
            
myMediaPlayer=MediaPlayer.create(this,R.raw.test); 
            
myMediaPlayer.setLooping(false); 
            
} 
            
 
            
Log.v(TAG,TAG+"onCreate()"); 
            
 
            
} 
            
 
            
@Override 
            
publicvoidonDestroy(){ 
            
 
            
//TODOAuto-generatedmethodstub 
            
super.onDestroy(); 
            
Log.v(TAG,TAG+"onDestroy()"); 
            
if(myMediaPlayer!=null){ 
            
myMediaPlayer.stop(); 
            
myMediaPlayer.release(); 
            
} 
            
 
            
} 
            
 
            
//通过bindService的方式，onStart函数不会调用 
            
 
            
@Override 
            
publicvoidonStart(Intentintent,intstartId){ 
            
 
            
//TODOAuto-generatedmethodstub 
            
super.onStart(intent,startId); 
            
Log.v(TAG,TAG+"onStart()"); 
            
 
            
} 
            
 
            
@Override 
            
publicbooleanonUnbind(Intentintent){ 
            
 
            
//TODOAuto-generatedmethodstub 
            
Log.v(TAG,TAG+"onUnbind，成功没有？"+super.onUnbind(intent)); 
            
returntrue; 
            
 
            
} 
            
 
            
@Override 
            
publicvoidonRebind(Intentintent){ 
            
 
            
//TODOAuto-generatedmethodstub 
            
Log.v(TAG,TAG+"onRebind()----------------------------------->"); 
            
super.onRebind(intent); 
            
 
            
} 
            
 
            
} 
            
 
            
/** 
            
*MyBinder.java 
            
*com.androidtest.service.mediaplayer 
            
* 
            
*Function：TODO 
            
* 
            
*verdateauthor 
            
*────────────────────────────────── 
            
*2011-5-17Leon 
            
* 
            
*Copyright(c)2011,TNTAllRightsReserved. 
            
*/ 
            
 
            
packagecom.androidtest.service.mediaplayer; 
            
 
            
importandroid.os.Binder; 
            
 
            
/** 
            
*ClassName:MyBinderFunction:TODOADDFUNCTIONReason:TODOADDREASON 
            
* 
            
*@authorLeon 
            
*@version 
            
*@sinceVer1.1 
            
*@Date2011-5-17 
            
*/ 
            
publicclassMyBinderextendsBinder{ 
            
 
            
privateBindMusicServicebindMusicService; 
            
 
            
publicMyBinder(BindMusicServicebindMusicService){ 
            
this.bindMusicService=bindMusicService; 
            
}; 
            
 
            
publicBindMusicServicegetService(){ 
            
returnbindMusicService; 
            
} 
        

本文出自 “最牛傻蛋的博客” 博客，转载请与作者联系！

更多相关文章

1. uni-app提交表单到后端，接收表单数据
2. android PhoneGap源码详解
3. Android中显示动画的GIF-Movie类解决方案
4. Android(安卓)Adapter 源码笔记(3)
5. API Demos 2.2 研读笔记（12）——Intents Chooser
6. 使用响应式编程（RxJava）开发Android(安卓)App
7. Android(安卓)4.2 Ethernet启动流程
8. [Android]ActivityUnitTestCase解释
9. android wifiservice enable流程

随机推荐

1. 将Android Activity设置成对话框样式
2. Android巴士
3. 如何解决App无法收到android开机广播
4. 在Android中根据联系人查询电话号码
5. windows下载android源代码
6. Android中显示照片的Exif信息
7. 高仿Android 点心桌面皮肤实现方式
8. 【Android车载系统 News | Tech 3】News
9. 博客园app for xamarin android一款简洁
10. Android中的sqlite简单示例