1021作业

@[toc] zuoye

加 减 乘 三个类似

服务端

package com.example.myapplication;

import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.os.RemoteException;

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

    IBinder iBinder = new IMyAidlInterface.Stub() {
        @Override
        public int add(int a, int b) throws RemoteException {
            return a+b;
        }
    };


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

    public int add(int a,int b){
        return a+b;
    }


}

客户端

package com.example.app_client;

import androidx.appcompat.app.AppCompatActivity;

import android.app.Service;
import android.content.ComponentName;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.IBinder;
import android.os.RemoteException;
import android.util.Log;
import android.widget.Toast;

import com.example.myapplication.IMyAidlInterface;

public class MainActivity extends AppCompatActivity {

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

        ServiceConnection connection = new ServiceConnection(){

            @Override
            public void onServiceConnected(ComponentName name, IBinder service) {
                IMyAidlInterface anInterface = IMyAidlInterface.Stub.asInterface(service);
                try {
                    int add = anInterface.add(4, 5);
                    Log.i("TAG", "onServiceConnected: "+add);
                    Toast.makeText(MainActivity.this, add+"", Toast.LENGTH_SHORT).show();
                } catch (RemoteException e) {
                    e.printStackTrace();
                }
            }

            @Override
            public void onServiceDisconnected(ComponentName name) {

            }
        };

        Intent intent = new Intent();
        intent.setPackage("com.example.myapplication");
        intent.setAction("com.one.exex");

        bindService(intent,connection, Service.BIND_AUTO_CREATE);

    }
}