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[转载]Android Service学习之AIDL实例 – 梅义 – 博客园.
注：本文是我早些时候在eoe上发布的一篇文章
由于每个应用程序都运行在自己的进程空间，并且可以从应用程序UI运行另一个服务进程，而且经常会在不同的进程间传递对象。在 Android平台，一个进程通常不能访问另一个进程的内存空间，所以要想对话，需要将对象分解成操作系统可以理解的基本单元，并且有序的通过进程边界。
以下讲对如何实现AIDL调用进行讲解,本文包括AIDL接口调用,回调,以及传递复杂数据类型
Demo运行效果图
Aidl文件
Person.aidl
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package com.archermind.aidl;parcelable Person; |
ITaskBinder.aidl
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package com.archermind.aidl;import com.archermind.aidl.ITaskCallBack;import com.archermind.aidl.Person;interface ITaskBinder { void fuc01(); void fuc02(); String fuc03(in Person person); void registerCallBack(ITaskCallBack cb); void unregisterCallBack();} |
ITaskCallBack.aidl
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package com.archermind.aidl;interface ITaskCallBack { void onActionBack(String str);} |
先看Myservice的代码
服务端实现了AIDL的相关接口,供客户端调用
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@Override public IBinder onBind(Intent arg0) { // TODO Auto-generated method stub return mBinder; } private final ITaskBinder.Stub mBinder=new ITaskBinder.Stub() { @Override public void unregisterCallBack() throws RemoteException { // TODO Auto-generated method stub Log.v(TAG,"unregisterCallBack..."); mTaskCallBack=null; } @Override public void registerCallBack(ITaskCallBack cb) throws RemoteException { // TODO Auto-generated method stub Log.v(TAG,"registerCallBack..."); mTaskCallBack=cb; } @Override public void fuc01() throws RemoteException { // TODO Auto-generated method stub Log.v(TAG,"fuc01..."); } @Override public void fuc02() throws RemoteException { // TODO Auto-generated method stub Log.v(TAG,"fuc02..."); mTaskCallBack.onActionBack("hello world"); } @Override public String fuc03(Person person) throws RemoteException { // TODO Auto-generated method stub String name=person.getName(); String descrip=person.getDescrip(); int sex=person.getSex(); String ret=""; if(sex==0){ ret="Hello "+name+",you are handsome"+"("+descrip+")"; }else{ ret="Hello "+name+",you are beautiful"+"("+descrip+")"; } return ret; } }; |
客户端实现回调接口
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private final ITaskCallBack.Stub mCallBack=new ITaskCallBack.Stub() { @Override public void onActionBack(String str) throws RemoteException { // TODO Auto-generated method stub Log.v(TAG,"onActionBack str="+str); } }; |
客户端如何与服务器绑定并建立连接
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Intent intent=new Intent("com.archermind.aidl.myservice");bindService(intent,mConnection,BIND_AUTO_CREATE);private ServiceConnection mConnection=new ServiceConnection(){ @Override public void onServiceConnected(ComponentName name, IBinder service) { // TODO Auto-generated method stub mService=ITaskBinder.Stub.asInterface(service); try { mService.registerCallBack(mCallBack); } catch (RemoteException e) { // TODO Auto-generated catch block e.printStackTrace(); } Log.v(TAG,"onServiceConnected"); } |
源码工程:http://www.eoeAndroid.com/forum.php?mod=attachment&aid=NzQ0OTZ8ZjczNWI2NGN8MTM4ODY1NTQ1MnwxNjc0MnwyMDM5NTc%3D
