Android中AIDL跨进程访问机制

AILD机制：
通俗的讲就是访问别人的服务。
使用情况：
访问别人的第三方服务框架
例如：
自己的Activity访问别人的service

案例：跨应用进程绑定访问service

服务端

1、编写服务端
android_day11_service
PlayMusicService.java

package com.example.android_day11_service;import com.example.android_day11_service.MusicInterface.Stub;import android.app.Service;import android.content.Intent;import android.os.IBinder;import android.os.RemoteException;import android.util.Log;public class PlayMusicService extends Service{    /**     * 当调用bindService时执行       */    public IBinder onBind(Intent intent) {        return new MyBinder();    }    //等第二步编写完接口之后    class MyBinder extends Stub{        public void play() throws RemoteException {            Log.i("info", "play...");        }        public void next() throws RemoteException {            Log.i("info", "next...");        }        public void pre() throws RemoteException {            Log.i("info", "pre...");        }    }}

2、编写接口也就是AIDL(MusicInterface.aidl)
MusicInterface.aidl
后缀名改了之后根文件自动生成文件

package com.example.android_day11_service;/** *  当前接口  就是  aidl接口  *  在该接口中需要定义供客户端访问的抽象方法 */interface MusicInterface {    void play();    void next();    void pre();}

点击进入根文件自动生成的文件：

3、在清单文件中注册

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.example.android_day11_service"    android:versionCode="1"    android:versionName="1.0" >    <uses-sdk        android:minSdkVersion="8"        android:targetSdkVersion="17" />    <application        android:allowBackup="true"        android:icon="@drawable/ic_launcher"        android:label="@string/app_name"        android:theme="@style/AppTheme" >       <service android:name="com.example.android_day11_service.PlayMusicService">          <intent-filter >              <action android:name="com.tarena.action.MUSIC_SERVICE"/>          </intent-filter>        </service>    </application></manifest>

4、运行安装在手机上

客户端

android_day11_phone
1、新建Activity(PlayMusicActivity.java)

package com.example.android_day11_phone;import com.example.android_day11_service.MusicInterface;import com.example.android_day11_service.MusicInterface.Stub;import android.os.Bundle;import android.os.IBinder;import android.os.RemoteException;import android.app.Activity;import android.app.Service;import android.content.ComponentName;import android.content.Intent;import android.content.ServiceConnection;import android.view.Menu;import android.view.View;public class PlayMusicActivity extends Activity {    private ServiceConnection conn;    private MusicInterface musicInterface;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_play_music);        // 执行service绑定        Intent intent = new Intent("com.tarena.action.MUSIC_SERVICE");        conn = new ServiceConnection() {            public void onServiceDisconnected(ComponentName name) {            }            // 绑定成功时执行            public void onServiceConnected(ComponentName name, IBinder service) {                musicInterface = Stub.asInterface(service);            }        };        this.bindService(intent, conn, Service.BIND_AUTO_CREATE);    }    @Override    protected void onDestroy() {        super.onDestroy();        this.unbindService(conn);    }    public void doClick(View view) {        try {            switch (view.getId()) {            case R.id.button1:                musicInterface.play();                break;            case R.id.button2:                musicInterface.next();                break;            case R.id.button3:                musicInterface.pre();                break;            }        } catch (RemoteException e) {            e.printStackTrace();        }    }    @Override    public boolean onCreateOptionsMenu(Menu menu) {        // Inflate the menu; this adds items to the action bar if it is present.        getMenuInflater().inflate(R.menu.play_music, menu);        return true;    }}

2、客户端想要用，要将服务端AIDL文件复制到客户端（包名一致）

3、运行

代码下载：http://download.csdn.net/detail/prince77qiqiqq/9628751