刚开始接触AIDL，想学着使用它，但是网上搜了一圈发现全都是Eclipise教程，很少有Android studio 的教程，这篇博客将为大家介绍如何使用Android studio来使用aidl,.

一、AIDL创建的步骤

１、创建.aidl文件，可以在里面写自己的方法；

2、编译生成java interface 文件；

3、创建aidl service的服务类，重写前面提到的方法；

4、在Activity中启动Service  调用AIDL；

二、详细步骤

1、创建.adil文件 

如图所示，android studio提供了简便的创建方法：

我们创建一个名为MyService的aidl文件：源代码如下：

interface MyService {    /**     * Demonstrates some basic types that you can use as parameters     * and return values in AIDL.     */    void basicTypes(int anInt, long aLong, boolean aBoolean, float aFloat,            double aDouble, String aString);    void Download();    }

2、编译生成java interface

但是此时并没有AIDL的java文件产生，其实android studio也是带有自动生成的，只不过需要确认一些信息后才能生成。此时，我们可以在目录 build-->generated-->source-->aidl-->test-->debug下面发现还没有任何文件

此时，打开AndroidManifest.xml，确认package的值，如如上所示：我的应该是：com.example.terry.studyaidl

如果一致，则编译

编译后我们再看，debug，就会发现多了一个java文件。

3、创建MyService的服务类

package com.example.terry.studyaidl;import android.app.Notification;import android.app.Notification.Builder;import android.app.NotificationManager;import android.app.PendingIntent;import android.app.Service;import android.content.Intent;import android.os.Bundle;import android.os.IBinder;import android.os.RemoteException;import android.util.Log;/** * Created by Terry on 2016/4/18. */public class MainService extends Service {    boolean flag;    private final static String TAG = "MainService";int i=1;    @Override    public void onDestroy() {        super.onDestroy();        Log.e(TAG, "+++++=MainSeverice destory++++");        flag = false;    }    @Override    public IBinder onBind(Intent intent) {        Bundle bundle = intent.getExtras();        flag = bundle.getBoolean("flag");        System.out.println(flag);        return ms;    }    @Override    public int onStartCommand(Intent intent,int flags, int startId) {        return super.onStartCommand(intent,flags,startId);    }    @Override    public void onCreate() {        flag = true;        NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);        Builder builder = new Notification.Builder(MainService.this);        Intent intent = new Intent(this, MainActivity.class);        PendingIntent pi = PendingIntent.getActivity(this, 0, intent, 0);        Log.e(TAG, "++++++MainService Create++++++");      builder.setContentIntent(pi)              .setContentText("您有一条新消息！")             .setContentTitle("有通知到来")              .setSmallIcon(R.mipmap.ic_launcher)              .setWhen(System.currentTimeMillis())              .setAutoCancel(true);        Notification notification = builder.getNotification();        notificationManager.notify(i++,notification);    }    MyService.Stub ms = new MyService.Stub() {        @Override        public void basicTypes(int anInt, long aLong, boolean aBoolean, float aFloat, double aDouble, String aString) throws RemoteException {        }        @Override        public void Download() throws RemoteException {            Log.d(TAG,"***++++start download+++***");            new Thread(new Runnable() {                int i = 0;                @Override                public void run() {                    //未达到线程条件，会一直在后台运行，就算服务已经关闭                    while (flag) {                        try {                            i++;                            Log.e("i的值是：", String.valueOf(i));                            System.out.println("i的值是" + i);                            Thread.sleep(1000);                        } catch (InterruptedException e) {                            e.printStackTrace();                        }                    }                    Log.e("推出服务i的值是：", String.valueOf(i));                }            }).start();        }    };}

4、在Activity中调用Service

package com.example.terry.studyaidl;import android.content.ComponentName;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.util.Log;import android.view.View;import android.widget.Button;public class MainActivity extends AppCompatActivity { private MyService myService;    private Intent binderIntent;    private final static boolean create_flag =true;    private final static boolean destory_flag = false;    private String TAG = "MainActivity";private Button button;    private ServiceConnection sc = new ServiceConnection() {        @Override        public void onServiceConnected(ComponentName name, IBinder service) {            myService =MyService.Stub.asInterface(service);            try{            //通过AIDL调用Service                Log.d(TAG,"++++start download+++");                myService.Download();                Log.d(TAG, "++++start%%% download+++");            }catch (RemoteException e)            {                e.printStackTrace();            }        }        @Override        public void onServiceDisconnected(ComponentName name) {        }    };    @Override    protected void onCreate(Bundle savedInstanceState) {        Log.d(TAG, "+++++++MainActivity start++++");        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        //开启服务        Log.e(TAG, "%%%%%%%%%%%");        button = (Button) findViewById(R.id.start);        button.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                //Intent i = new Intent(MainActivity.this, MainService.class);                //startService(i);                Log.e(TAG, "%%%%#####%%%%%%%");                //链接远程Service和Activity                binderIntent = new Intent(MainActivity.this, MainService.class);                Bundle bundle = new Bundle();                bundle.putBoolean("flag", create_flag);                binderIntent.putExtras(bundle);                bindService(binderIntent, sc, BIND_AUTO_CREATE);                Log.e(TAG, "%%%%#####%%%%%@@@@@%%");            }        });    }    @Override    protected void onDestroy(){        super.onDestroy();        Log.d(TAG,"+++Activity   onDestory()+++++");        boolean flag = false;        //暂停服务        //Intent intent = new Intent(this,MainService.class);        ///stopService(intent);        //断开连接        unbindService(sc);    }}

对了不要忘记在AndroidMainifest.xml文件中注册Service