Android Service学习之AIDL实例

【每日话题】国庆放假期间的苦逼事,欢乐事!
http://www.eoeandroid.com/thread-204909-1-1.html

随手记源码啊!!忘记哪里的啦,给大家分享一下
http://www.eoeandroid.com/thread-203718-1-1.html

一个触摸界面会产生小气泡的例子
http://www.eoeandroid.com/thread-203665-1-1.html

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
package com.archermind.aidl;
parcelable Person;

ITaskBinder.aidl
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
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

@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

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

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");
}

 

详细信息请见附件中的源码工程,希望对大家有用.

posted on 2012-10-08 10:49  vus520  阅读(1098)  评论(1编辑  收藏  举报

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