android_58_service_remote_AIDL调用远程服务

AIDL: 安卓接口定义语言,用于进程间通信

步骤:

1.来到提供远程服务的project的文件目录, 将抽取的接口OpenInterface.java直接改成.aidl后缀

2.来到项目中,刷新一下, 注意在aidl文件中,所有东西都是public,所以删除掉报错的public关键字

3.此时,在gen目录的包下,多了一个自动生成的OpenInterface.java

里面有一个public static abstract class Stub extends Binder implements OpenInterface

4.因此,服务里的 中间人 只要extends Stub即可

5.把提供服务的 .aidl文件,直接拷贝到  别的项目里 (注意,.aidl所在的包名不能变, 即需新建一个同名的包)

此时,会出动生成一个OpenInterface.java, 与 提供远程服务的项目中的 是一模一样,内也有中间人 Stub

6.通过Stub.asInterface(IBinder service)转成中间人

效果:

远程服务app:

清单文件:

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.sg31.remoteservice"    android:versionCode="1"    android:versionName="1.0" >    <uses-sdk        android:minSdkVersion="8"        android:targetSdkVersion="21" />    <application        android:allowBackup="true"        android:icon="@drawable/ic_launcher"        android:label="@string/app_name"        android:theme="@style/AppTheme" >        <activity            android:name=".MainActivity"            android:label="@string/app_name" >            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>                // 注册自定义的 远程服务        <service android:name=".SGRemoteService">            <intent-filter >                <action android:name="com.sg31.sgremoteservice"/>            </intent-filter>        </service>            </application></manifest>

OpenInterface.aidl: (注意所在的包)

package com.sg31.remoteservice; interface OpenInterface {void call_tequan();}

服务:

package com.sg31.remoteservice;import com.sg31.remoteservice.OpenInterface.Stub;import android.app.Service;import android.content.Intent;import android.os.IBinder;public class SGRemoteService extends Service {@Overridepublic void onCreate() {// TODO Auto-generated method stubSystem.out.println("sg__create");super.onCreate();}@Overridepublic int onStartCommand(Intent intent, int flags, int startId) {System.out.println("sg__startCommand");return super.onStartCommand(intent, flags, startId);}@Overridepublic IBinder onBind(Intent intent) {System.out.println("bind方法");return new MiddlePerson();}// 中间人class MiddlePerson extends Stub {@Overridepublic void call_tequan() {inner_teQuanMethod();}}public void inner_teQuanMethod() {System.out.println("sg__特权内部的方法");}}

另一个app,通过拷贝过来的aidl文件,调用远程服务内的方法

清单:

布局:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context="com.sg31.callremoteservice.MainActivity"     android:orientation="vertical"    >    <Button        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="启动远程服务"         android:onClick="startRemoteServiceBtnClicked"        />    <Button        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="停止远程服务"         android:onClick="stopRemoteServiceBtnClicked"        />    <Button        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="绑定远程服务"         android:onClick="bindRemoteServiceBtnClicked"        />    <Button        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="解绑远程服务"         android:onClick="unBindRemoteServiceBtnClicked"        />    <Button        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="远程办证"         android:onClick="callRemoteServiceMethodBtnClicked"        /></LinearLayout>

控制器: (必须指定远程服务的包名)

package com.sg31.callremoteservice;import com.sg31.remoteservice.OpenInterface;import com.sg31.remoteservice.OpenInterface.Stub;import android.support.v7.app.ActionBarActivity;import android.content.ComponentName;import android.content.Intent;import android.content.ServiceConnection;import android.os.Bundle;import android.os.IBinder;import android.view.Menu;import android.view.MenuItem;import android.view.View;public class MainActivity extends ActionBarActivity {private SGServiceConnection conn;OpenInterface openInterface;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);conn = new SGServiceConnection();}public void startRemoteServiceBtnClicked(View v) {// 启动远程服务Intent intent = new Intent();intent.setAction("com.sg31.sgremoteservice");intent.setPackage("com.sg31.remoteservice");startService(intent);}public void stopRemoteServiceBtnClicked(View v) {// 停止远程服务Intent intent = new Intent();intent.setAction("com.sg31.sgremoteservice");intent.setPackage("com.sg31.remoteservice");stopService(intent);}public void bindRemoteServiceBtnClicked(View v) {Intent intent = new Intent();intent.setAction("com.sg31.sgremoteservice");intent.setPackage("com.sg31.remoteservice");bindService(intent, conn, BIND_AUTO_CREATE);}public void unBindRemoteServiceBtnClicked(View v) {unbindService(conn);}class SGServiceConnection implements ServiceConnection {@Overridepublic void onServiceConnected(ComponentName name, IBinder service) {System.out.println("sg__on__service__connected");// 把Ibinder中间人对象强转成publicbusinessopenInterface = Stub.asInterface(service);}@Overridepublic void onServiceDisconnected(ComponentName name) {System.out.println("sg__on__service__disconnected");}}public void callRemoteServiceMethodBtnClicked(View v) {try {// 通过aidl中间人,调用远程服务内的特权方法openInterface.call_tequan();} catch (Exception e) {e.printStackTrace();}}}