Android AIDL使用

导引:
AIDL:Android Interface Definition Language，就是Android接口定义语言,为了实现两个app进程间数据通信

流程:所谓的C/S模式,客户端©+服务端(S)

释义:
AIDL:通过新建AIDL文件,build->make project生成.java文件,完成CS间的通信,但是我们最终关注的是android端通过AIDL调用别人的数据.

1:在java 源码同级目录新建aidl目录,先新建同服务器端相同包名的包new-folder-aidl folder,再新建Aidl文件new-aidl-aidl file,比如FService.aidl,保存后build-make project会自动在generated里生成FService.java文件,不用太关注里面什么东西

package com.Service.aidl;
interface FService{  
	int open(int num);
}    

2:定义MyService完成FService的绑定和解绑,并在AndroidManifest.xml中注册

 <service android:name=".service.MyService">
            <intent-filter>
                <action android:name="com.aile.device_service" />
            </intent-filter>
 </service>
 
public class MyService extends Service {
private static FService fService;
  private ServiceConnection serviceConnection = new ServiceConnection() {
        @Override
        public void onServiceDisconnected(ComponentName name) {
            fService= null;
        }
        @Override
        public void onServiceConnected(ComponentName name, IBinder service) {
            fService= FService .Stub.asInterface(service);
        }
    };
 public void connectDevice(Context paramContext) throws Exception {
        if (fService== null) {
            Intent intent = new Intent();
            intent.setPackage("com.aile.ware");
            intent.setAction("com.aile.device_service");
            bindService(intent, serviceConnection, BIND_AUTO_CREATE);
        }
    }
    private void disconnectDevice() {
        if (fService!= null) {
            try {
                unbindService(serviceConnection);
            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                fService= null;
            }
        }
    }
 public static FService getFService() {
        return fService;
    }
    @Override
    public void onCreate() {
        super.onCreate();
         try {
            connectDevice(this);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }
 public void onDestroy() {
        super.onDestroy();
        disconnectDevice();
    }
    public boolean onUnbind(Intent paramIntent) {
        disconnectDevice();
        return false;
    }
}

3:在mainactivity启动service

startService(new Intent(this, MyService .class));

4:在需要的activity中完成调用

MyService .getFService().open(50);

好了,结束