AIDL初步

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一、整体工程图

二、首先创建在两个工程中都创建RemoteWebPage.aidl，然后分别在gen目录下生成了RemoteWebPage.java

package com.braincol.aidl.service; interface RemoteWebPage {String getCurrentPageUrl(); }

三、在RemoteService实现接口，并且在onBind方法中返回IBinder对象。

package com.braincol.aidl.service;import android.app.Service;import android.content.Intent;import android.os.IBinder;import android.os.RemoteException;import android.util.Log;/** *  * @author chenzheng_java * @description 提供服务的service * */public class RemoteService extends Service {private final static String TAG = "RemoteService";@Overridepublic IBinder onBind(Intent intent) {Log.i(TAG, "执行了OnBind");return new MyBinder();}private class MyBinder extends RemoteWebPage.Stub{@Overridepublic String getCurrentPageUrl() throws RemoteException{return "http://www.cnblogs.com/hibraincol/";}}}

四、ClientActivity中通过remoteWebPage = RemoteWebPage.Stub.asInterface(service)获取到RemoteWebPage，就可以调用其中的方法getCurrentPageUrl了。

package com.braincol.aidl.client;import android.app.Activity;import android.content.ComponentName;import android.content.Context;import android.content.Intent;import android.content.ServiceConnection;import android.os.Bundle;import android.os.IBinder;import android.os.RemoteException;import android.util.Log;import android.view.View;import android.view.View.OnClickListener;import android.widget.Button;import android.widget.TextView;import android.widget.Toast;import com.braincol.aidl.service.RemoteWebPage;public class ClientActivity extends Activity implements OnClickListener {private final static String TAG="jltxgcy";Button btn_bind ;String actionName = "com.braincol.aidl.remote.webpage";RemoteWebPage remoteWebPage=null;String allInfo = null;boolean isBinded=false;@Overridepublic void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);btn_bind = (Button) findViewById(R.id.btn_bind);btn_bind.setOnClickListener(this);}@Overrideprotected void onPause(){super.onPause();if(isBinded){Log.d(TAG,"unbind");unbindService(connection);}}private class MyServiceConnection implements ServiceConnection{@Overridepublic void onServiceConnected(ComponentName name, IBinder service) {Log.i(TAG, "建立连接...");remoteWebPage = RemoteWebPage.Stub.asInterface(service);try {Log.d(TAG, remoteWebPage.getCurrentPageUrl());} catch (RemoteException e) {// TODO Auto-generated catch blocke.printStackTrace();}}@Overridepublic void onServiceDisconnected(ComponentName name) {Log.i(TAG, "onServiceDisconnected...");}}MyServiceConnection connection = new MyServiceConnection();@Overridepublic void onClick(View v) {if(v==this.btn_bind){if(!isBinded){Intent intent  = new Intent(actionName);bindService(intent, connection, Context.BIND_AUTO_CREATE);isBinded= true;}}}}

五、另外注意RemoteService的AndroidManifest.xml写法。

ClientActivity的AndroidManifest.xml为：

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"      package="com.braincol.aidl.client"      android:versionCode="1"      android:versionName="1.0">    <uses-sdk android:minSdkVersion="8" />    <application android:icon="@drawable/icon" android:label="@string/app_name">        <activity android:name=".ClientActivity"                  android:label="@string/app_name">            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>    </application></manifest>

RemoteService的AndroidManifest.xml为：

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"      package="com.braincol.aidl.service"      android:versionCode="1"      android:versionName="1.0">    <uses-sdk android:minSdkVersion="8" />    <application android:icon="@drawable/icon" android:label="@string/app_name"><service android:name="RemoteService"><intent-filter><action android:name="com.braincol.aidl.remote.webpage"/></intent-filter></service>    </application></manifest>

代码地址：https://github.com/jltxgcy/Demo