Android 两个App间进行IPC通信

• • DemoA
  • DemoB

运行结果

2021-09-12 13:52:51.986 2568-2568/com.jlink.demob D/wangrui: 通信管道正在绑定
2021-09-12 13:53:11.969 2568-2568/com.jlink.demob D/wangrui: 接收到客户端消息
2021-09-12 13:53:11.970 2568-2568/com.jlink.demob D/wangrui: 名字：王睿    年龄21

MainActivity.java

public class MainActivity extends AppCompatActivity {

    private Button btnIPC;
    private Button btnSend;
    private Messenger messengerProxy;
    private Handler handler = new Handler(Looper.getMainLooper()){
        @Override
        public void handleMessage(@NonNull Message msg) {
            super.handleMessage(msg);
            Bundle bundle = msg.getData();
            bundle.setClassLoader(MyBean.class.getClassLoader());
            MyBean myBean = bundle.getParcelable("message");
            handler.postDelayed(new Runnable() {
                @Override
                public void run() {
                    Toast.makeText(MainActivity.this,myBean.getName(),Toast.LENGTH_SHORT).show();
                }
            },3000);
        }
    };

    private Messenger clientMessenger = new Messenger(handler);

    private ServiceConnection mServiceConnection = new ServiceConnection() {
        @Override
        public void onServiceConnected(ComponentName name, IBinder binder) {
            messengerProxy = new Messenger(binder);
            Toast.makeText(MainActivity.this,"连接成功",Toast.LENGTH_SHORT).show();
        }

        @Override
        public void onServiceDisconnected(ComponentName name) {
            android.util.Log.d("wangrui","断开连接！");
        }
    };

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

        btnIPC = findViewById(R.id.btn_ipc);
        btnIPC.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intentService = new Intent();
                intentService.setAction("com.jlink.demob.MyService");
                intentService.setPackage("com.jlink.demob");
                intentService.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                MainActivity.this.bindService(intentService, mServiceConnection, BIND_AUTO_CREATE);
            }
        });

        btnSend = findViewById(R.id.btn_send);
        btnSend.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
//                MyBean myBean = new MyBean();
//                myBean.setName("王睿对皮卡丘使用了精灵球");
                try {
                    Message message = new Message();
//                    message.replyTo = clientMessenger;
                    Bundle bundle = new Bundle();
                    bundle.putString("name", "王睿");
                    bundle.putString("age","21");
//                    bundle.putParcelable("message",myBean);
                    message.setData(bundle);
                    messengerProxy.send(message);
                } catch (RemoteException e) {
                    e.printStackTrace();
                }
            }
        });
    }
}

MyService.java

public class MyService extends Service {

    private Handler handler = new Handler(Looper.getMainLooper());
    private Messenger messenger = new Messenger(handler);


    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        android.util.Log.d("wangrui","通信管道正在绑定");
        return messenger.getBinder();
    }
}

AndroidManifest.xml

MainActivity.java

public class MainActivity extends AppCompatActivity {
    private ServiceConnection mServiceConnection = new ServiceConnection() {
        @Override
        public void onServiceConnected(ComponentName name, IBinder binder) {

        }

        @Override
        public void onServiceDisconnected(ComponentName name) {
        }
    };


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Intent intentService = new Intent();
        intentService.setAction("com.jlink.demob.MyService");
        intentService.setPackage("com.jlink.demob");
        intentService.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        MainActivity.this.bindService(intentService, mServiceConnection, BIND_AUTO_CREATE);
    }

MyService.java

public class MyService extends Service {

    private Handler handler = new Handler(Looper.getMainLooper()){
        @Override
        public void handleMessage(@NonNull Message msg) {
            super.handleMessage(msg);

            android.util.Log.d("wangrui","接收到客户端消息");


//            客户端→服务端
            Bundle bundle = msg.getData();
            android.util.Log.d("wangrui","名字：" + bundle.getString("name")+"nn"+"年龄：" + bundle.getString("age"));
//            bundle.setClassLoader(MyBean.class.getClassLoader());
//            MyBean myBean = bundle.getParcelable("message");
//            Toast.makeText(MyService.this,myBean.getName(),Toast.LENGTH_SHORT).show();

//            //服务端→客户端
//            try {
//                Messenger clientMessenger = msg.replyTo;
//                myBean = new MyBean();
//                myBean.setName("皮卡丘对王睿使用了十万伏特");
//                bundle = new Bundle();
//                bundle.putParcelable("message",myBean);
//                Message message = new Message();
//                message.setData(bundle);
//                message.replyTo = clientMessenger;
//                clientMessenger.send(message);
//            } catch (RemoteException e) {
//                e.printStackTrace();
//            }
        }
    };

    private Messenger messenger = new Messenger(handler);


    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        android.util.Log.d("wangrui","通信管道正在绑定");
        return messenger.getBinder();
    }
}

AndroidManifest.xml