一、创建 Service 远程服务

1、创建 Service

package kim.hsl.aidl_demo;

import androidx.appcompat.app.AppCompatActivity;

import android.content.ComponentName;
import android.content.Context;
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.view.View;
import android.widget.Toast;

import java.util.List;

public class MainActivity extends AppCompatActivity 
    public static final String TAG = "MainActivity";

    private IMyAidlInterface aidl;

    private ServiceConnection serviceConnection = new ServiceConnection() 
        /**
         * 传入需要的 Service , 让系统寻找指定的远程服务
         * @param name
         * @param service
         */
        @Override
        public void onServiceConnected(ComponentName name, IBinder service) 
            // 通过 IBinder 对象 , 从系统中获取对应的远程服务或代理对象
            aidl = IMyAidlInterface.Stub.asInterface(service);
            Log.i(TAG, "AIDL 获取成功");
        

        @Override
        public void onServiceDisconnected(ComponentName name) 
            aidl = null;
        
    ;

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

        // 通过 Action 和 包名 , 绑定远程服务
        Intent intent = new Intent("android.intent.action.MyService");
        intent.setPackage("kim.hsl.aidl_demo");
        bindService(intent, serviceConnection, Context.BIND_AUTO_CREATE);

        findViewById(R.id.add).setOnClickListener((View view)->
            try 
                aidl.addStudent(new Student("Tom"));
             catch (RemoteException e) 
                e.printStackTrace();
            
        );

        findViewById(R.id.get).setOnClickListener((View view)->
            try 
                List<Student> students = aidl.getStudents();
                Log.i(TAG, "students = " + students);
             catch (RemoteException e) 
                e.printStackTrace();
            
        );
    

2、AndroidManifest.xml 清单文件中配置 Service

        <service
            android:name=".MyService"
            android:enabled="true"
            android:exported="true">
            <intent-filter>
                <action android:name="android.intent.action.MyService" />
            </intent-filter>
        </service>

二、绑定 Service 远程服务

1、核心代码

通过 Action 和 包名 , 绑定远程服务 , 其中 Action 是在 AndroidManifest.xml 清单文件中配置的 ;

        // 通过 Action 和 包名 , 绑定远程服务
        Intent intent = new Intent("android.intent.action.MyService");
        intent.setPackage("kim.hsl.aidl_demo");
        bindService(intent, serviceConnection, Context.BIND_AUTO_CREATE);

2、完整代码

完整代码如下 :

package kim.hsl.aidl_demo;

import androidx.appcompat.app.AppCompatActivity;

import android.content.ComponentName;
import android.content.Context;
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.view.View;
import android.widget.Toast;

import java.util.List;

public class MainActivity extends AppCompatActivity 
    public static final String TAG = "MainActivity";

    private IMyAidlInterface aidl;

    private ServiceConnection serviceConnection = new ServiceConnection() 
        /**
         * 传入需要的 Service , 让系统寻找指定的远程服务
         * @param name
         * @param service
         */
        @Override
        public void onServiceConnected(ComponentName name, IBinder service) 
            // 通过 IBinder 对象 , 从系统中获取对应的远程服务或代理对象
            aidl = IMyAidlInterface.Stub.asInterface(service);
            Log.i(TAG, "AIDL 获取成功");
        

        @Override
        public void onServiceDisconnected(ComponentName name) 
            aidl = null;
        
    ;

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

        // 通过 Action 和 包名 , 绑定远程服务
        Intent intent = new Intent("android.intent.action.MyService");
        intent.setPackage("kim.hsl.aidl_demo");
        bindService(intent, serviceConnection, Context.BIND_AUTO_CREATE);

        findViewById(R.id.add).setOnClickListener((View view)->
            try 
                aidl.addStudent(new Student("Tom"));
             catch (RemoteException e) 
                e.printStackTrace();
            
        );

        findViewById(R.id.get).setOnClickListener((View view)->
            try 
                List<Student> students = aidl.getStudents();
                Log.i(TAG, "students = " + students);
             catch (RemoteException e) 
                e.printStackTrace();
            
        );
    

3、运行结果

点击添加按钮 , 即可向远程服务中添加 Student 对象 , 点击获取按钮 , 即可在日志中打印之前添加的所有 Student 对象 ;

2021-09-16 15:11:14.492 27781-27781/kim.hsl.aidl_demo I/MainActivity: AIDL 获取成功
2021-09-16 15:11:14.499 27781-27866/kim.hsl.aidl_demo I/ConfigStore: android::hardware::configstore::V1_0::ISurfaceFlingerConfigs::hasWideColorDisplay retrieved: 1
2021-09-16 15:11:14.499 27781-27866/kim.hsl.aidl_demo I/ConfigStore: android::hardware::configstore::V1_0::ISurfaceFlingerConfigs::hasHDRDisplay retrieved: 0
2021-09-16 15:11:14.499 27781-27866/kim.hsl.aidl_demo I/OpenGLRenderer: Initialized EGL, version 1.4
2021-09-16 15:11:27.704 27781-27781/kim.hsl.aidl_demo I/MainActivity: students = [name=Tom, name=Tom]


2021-09-16 15:11:40.729 27781-27781/kim.hsl.aidl_demo I/MainActivity: students = [name=Tom, name=Tom, name=Tom, name=Tom, name=Tom, name=Tom, name=Tom, name=Tom]