Android --（Service）AIDL跨线程通信

一，AIDL详情

AIDL是一种定义接口语言，用于多个应用间使用同一个Service的功能。

相比其他跨线程通信：Broadcast Receiver,它的优势是：性能稳定，效率高，而且系统上实现共享内存。

二，AIDL的使用：

通常使用它需要启动Client端和Service端

Service端创建

1，先创建AIDL

 

2,修改aidl文件，并 Rebuild

interface IMyAidlInterface {
    //传入int数据，返回string 数据
    String getstring(int data);
}

 

3,创建service

public class MyService extends Service {
    public MyService() {
    }

    @Override
    public IBinder onBind(Intent intent) {
        return  iMyAidlInterface;
    }

    private IMyAidlInterface.Stub iMyAidlInterface = new IMyAidlInterface.Stub() {
        @Override
        public String getstring(int data) throws RemoteException {
            String str = "传进来的数字："+data;
            return str;
        }
    };
}

Client 客户端创建

  private  IMyAidlInterface iMyAidlInterface;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
    /**
     * 绑定AIDL
     */
    public void onbang(View view ){
        Intent intent = new Intent(this , MyService.class);
        bindService(intent , connect , BIND_AUTO_CREATE);

    }

    /**
     * 解绑
     */
    public void unbang(View view){
        unbindService(connect);
        Toast.makeText(MainActivity.this , "解除绑定" , Toast.LENGTH_LONG).show();
    }

    /**
     * 连接
     */
    private ServiceConnection  connect = new ServiceConnection() {
        /**
         * 连接成功
         * @param name
         * @param service
         */
        @Override
        public void onServiceConnected(ComponentName name, IBinder service) {
            iMyAidlInterface = IMyAidlInterface.Stub.asInterface(service);
            try {
                String str = iMyAidlInterface.getstring(1);
                Toast.makeText(MainActivity.this , str , Toast.LENGTH_LONG).show();
            } catch (RemoteException e) {
                e.printStackTrace();
            }

        }

        /**
         * 连接失败
         * @param name
         */
        @Override
        public void onServiceDisconnected(ComponentName name) {
            iMyAidlInterface = null;

        }
    };
}

显示如图

第三方应用调用该服务

这里和之前的不一样

1，把之前的ADIL文件夹复制到第三方应用

2，调取的时候发生改变，创建Componnent

   public void onbang(View view ){
        Intent intent = new Intent();
        ComponentName com = new ComponentName(
                "qzjiami.c",  //包名
                "qzjiami.c.MyService");//服务类
        intent.setComponent(com);
        bindService(intent , connect , BIND_AUTO_CREATE);

    }

主代码：

public class MainActivity extends AppCompatActivity {
    private IMyAidlInterface DiMyAidlInterface;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    /**
     * 绑定AIDL
     */
    public void onbang(View view ){
        Intent intent = new Intent();
        ComponentName com = new ComponentName(
                "qzjiami.c",  //包名
                "qzjiami.c.MyService");//服务类
        intent.setComponent(com);
        bindService(intent , connect , BIND_AUTO_CREATE);

    }

    /**
     * 解绑
     */
    public void unbang(View view){
        unbindService(connect);
        Toast.makeText(MainActivity.this , "解除绑定" , Toast.LENGTH_LONG).show();
    }

    /**
     * 连接
     */
    private ServiceConnection connect = new ServiceConnection() {
        /**
         * 连接成功
         * @param name
         * @param service
         */
        @Override
        public void onServiceConnected(ComponentName name, IBinder service) {
            DiMyAidlInterface = IMyAidlInterface.Stub.asInterface(service);
            try {
                String str = DiMyAidlInterface.getstring(2);
                Toast.makeText(MainActivity.this , str , Toast.LENGTH_LONG).show();
            } catch (RemoteException e) {
                e.printStackTrace();
            }

        }

        /**
         * 连接失败
         * @param name
         */
        @Override
        public void onServiceDisconnected(ComponentName name) {
            DiMyAidlInterface = null;

        }
    };
}

显示如图：