AIDL的简单实现

//AIDL

interface IMyAidlInterface {

    int plus(int plus01, int plus02);

}
//service

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

    // 创建
    @Override
    public void onCreate() {
        super.onCreate();
        Log.d("1507", "Service onCreate");
    }

    // 1、创建胶水类
    // stub：本意为存根。AIDL提供的类似于胶水的类，在这个胶水中实现了加法运算
    private static class MyBinder extends IMyAidlInterface.Stub {

        @Override
        public int plus(int plus01, int plus02) throws RemoteException {
            return plus01 + plus02;
        }
    }

    // 绑定
    @Override
    public IBinder onBind(Intent intent) {
        Log.d("1507", "Service onBind");
        return new MyBinder();
    }

    // 解绑
    @Override
    public boolean onUnbind(Intent intent) {
        Log.d("1507", "Service onUnbind");
        return super.onUnbind(intent);
    }

    // 销毁
    @Override
    public void onDestroy() {
        Log.d("1507", "Service onDestroy");
        super.onDestroy();
    }
}

  <intent-filter>
                <action android:name="bind_server"/>
            </intent-filter>

//客户端

/**
 * 3、绑定服务端的Service
 * 4、通过ServiceConnection接口确定是否连接成功
 * 5、如果连接成功，调用Service的操作
 */
public class MainActivity extends AppCompatActivity implements
        View.OnClickListener, ServiceConnection {

    // 自定义Action
    public static final String ACTION_BIND = "bind_server";

    protected EditText mPlus01Et;
    protected EditText mPlus02Et;
    protected Button mCalculateBtn;
    protected TextView mResultTv;
    private IMyAidlInterface mPlusInterface;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Log.d("1507", "Activity onCreate");
        super.setContentView(R.layout.activity_main);
        initView();
        bindService();
    }

    // 绑定Service
    private void bindService() {
        Intent intent = new Intent(ACTION_BIND);// action
        intent.setPackage("net.bwie.aidlserver");// server端对应的包名
        boolean isBindSuccessful = bindService(intent, this, Context.BIND_AUTO_CREATE);
        Toast.makeText(this, "" + isBindSuccessful, Toast.LENGTH_SHORT).show();
    }

    @Override
    public void onClick(View view) {
        if (view.getId() == R.id.calculate_btn) {
            int plus01 = Integer.parseInt(mPlus01Et.getText().toString());
            int plus02 = Integer.parseInt(mPlus02Et.getText().toString());

            // 调用AIDL接口中的方法
            try {
                int result = mPlusInterface.plus(plus01, plus02);
                mResultTv.setText("结果是：" + result);
            } catch (RemoteException e) {
                e.printStackTrace();
            }
        }
    }

    private void initView() {
        mPlus01Et = (EditText) findViewById(R.id.plus01_et);
        mPlus02Et = (EditText) findViewById(R.id.plus02_et);
        mCalculateBtn = (Button) findViewById(R.id.calculate_btn);
        mCalculateBtn.setOnClickListener(MainActivity.this);
        mResultTv = (TextView) findViewById(R.id.result_tv);
    }

    // 绑定成功
    @Override
    public void onServiceConnected(ComponentName name, IBinder iBinder) {
        // 将IBinder用AIDL独有的方式转换为自定义胶水（AIDL接口）
        mPlusInterface = IMyAidlInterface.Stub.asInterface(iBinder);
    }

    // 绑定未成功
    @Override
    public void onServiceDisconnected(ComponentName name) {

    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        Log.d("1507", "Activity onDestroy");
    }
}