Android远程服务（AIDL）实现步骤

public class aidlactivity extends Activity{
    private IMyAidlInterface mys = null;

    public ServiceConnection sc = new ServiceConnection() {
        @Override
        public void onServiceConnected(ComponentName name, IBinder service) {
            mys = IMyAidlInterface.Stub.asInterface(service);
            if(mys != null) {
                try {
                    Toast.makeText(aidlactivity.this, mys.getvalue(), Toast.LENGTH_LONG).show();
                } catch (RemoteException e) {
                    e.printStackTrace();
                }
                Log.v("sk", "not null");
            }


        }

        @Override
        public void onServiceDisconnected(ComponentName name) {

        }
    };
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Intent intent = new Intent();
        intent.setAction("com.xl.aild.myaidl");
        intent.setPackage(this.getPackageName());
        bindService(intent, sc, Context.BIND_AUTO_CREATE);
    }
}

interface IMyAidlInterface {
    /**
     * Demonstrates some basic types that you can use as parameters
     * and return values in AIDL.
     */
   String getvalue();
}

public class aidlservice extends Service {
    @Override
    public IBinder onBind(Intent intent) {
        Log.v("sk", "return");
        return new myaidl();
    }

    class myaidl extends IMyAidlInterface.Stub {

        @Override
        public String getvalue() throws RemoteException {
            return "such a powerful aidl";
        }
    }
}