Android(安卓)Studio中的跨进程访问（aidl）

服务端
创建一个MyService继承Service并在Manifests.xml中注册,因为服务器不需要界面，我将Activity删除了，记得同时将Manifests.xml中的Activity注册删除,右键创建AIDL文件，创建完成后将和java在同一个路径下

IService.aidl

// IService.aidlpackage com.example.yuxin.service_aidl;// Declare any non-default types here with import statementsinterface IService {    /**     * Demonstrates some basic types that you can use as parameters     * and return values in AIDL.     */      String getName(int num);}

创建完成可能不会马上编译成java文件，你可以选中项目，点击Make Project

MyService.java

package com.example.yuxin.service_aidl;import android.app.Service;import android.content.Intent;import android.os.IBinder;import android.os.RemoteException;import android.support.annotation.Nullable;/** * Created by yuxin on 2016/7/1 0001. */public class MyService extends Service {    private String[] name=new String[]{"琼恩","珊莎","猎狗"};    private  MyBinder myBinder=new MyBinder();    @Nullable    @Override    public IBinder onBind(Intent intent) {        return myBinder;    }    private class MyBinder extends IService.Stub{        @Override        public String getName(int num) throws RemoteException {            return name[num];        }    }}

Manifests.xml

<?xml version="1.0" encoding="utf-8"?><manifest package="com.example.yuxin.service_aidl"          xmlns:android="http://schemas.android.com/apk/res/android">    <application        android:allowBackup="true"        android:icon="@mipmap/ic_launcher"        android:label="@string/app_name"        android:supportsRtl="true"        android:theme="@style/AppTheme">        <service android:name=".MyService">            <intent-filter >            <action android:name="com.jju.aidlService">action>        intent-filter>        service>    application>manifest>

客户端
编写一个界面，这里不写了，同上面的步骤创建一个AIDL文件夹，将服务端adli文件夹中的package和package下面的文件复制到客户端的aidl文件夹中，注意是复制！包名和类名都不能修改，再次点击Make Project让其将aidl编译成java文件，在Activity中便可调用Stub类
MainActivity.java

package com.example.yuxin.service_aidl;import android.content.ComponentName;import android.content.Context;import android.content.Intent;import android.content.ServiceConnection;import android.os.IBinder;import android.os.RemoteException;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.EditText;public class MainActivity extends AppCompatActivity {    private EditText et_name;    private EditText et_num;    private IService iService;    private  MyServiceConnetion conn;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        et_name = (EditText) findViewById(R.id.et_name);        et_num = (EditText) findViewById(R.id.et_num);        Intent service=new Intent();         conn=new MyServiceConnetion();        service.setAction("com.jju.aidlService");        bindService(service,conn, Context.BIND_AUTO_CREATE);    }    private class MyServiceConnetion implements ServiceConnection {        @Override        public void onServiceConnected(ComponentName name, IBinder service) {            iService = IService.Stub.asInterface(service);        }        @Override        public void onServiceDisconnected(ComponentName name) {            conn=null;        }    }    public void quary(View v) throws RemoteException {       int num= Integer.parseInt(et_num.getText().toString());        String name = iService.getName(num);        et_name.setText(name);    }    @Override    protected void onDestroy() {        super.onDestroy();        unbindService(conn);    }}

目录结构：

先运行服务端，然后运行客服端，运行结果：

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