标签：intent private exce ack gets puts ide send 简单
messenger内部也是实现aidl通信,所以可以看做一个轻量级aidl,但相对比较简单.首先开启一个服务并实现一个Handler用来处理消息,在onbind方法中返回IBinder对象,通过Serviceconnect绑定服务,并把IBinder对象传递到Serviceconnect的IBinder iBinder 参数中.在onServiceConnected中创建message对象并发送带bundle的消息
public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Button button = findViewById(R.id.button); Intent intent = new Intent(MainActivity.this, MyService.class); bindService(intent,mConnection,BIND_AUTO_CREATE); } private ServiceConnection mConnection = new ServiceConnection() { @Override public void onServiceConnected(ComponentName componentName, IBinder iBinder) { Messenger messenger = new Messenger(iBinder); Message message = Message.obtain(null, 1);//获得一个message对象,并设置what标记为1 Bundle bundle = new Bundle(); bundle.putString("msg","msgisme"); message.setData(bundle); try { messenger.send(message); } catch (RemoteException e) { e.printStackTrace(); } } @Override public void onServiceDisconnected(ComponentName componentName) { } }; @Override protected void onDestroy() { unbindService(mConnection); super.onDestroy(); } }
上面是主activity代码
public class MyService extends Service { public MyService() { } private static final String TAG = "yjm"; private static class abchandle extends Handler { @Override public void handleMessage(Message msg) { if(msg.what==1){ // Log.e(TAG,msg.getData().getString("msg")); System.out.println(msg.getData().getString("msg")); } super.handleMessage(msg); } } private Messenger messenger=new Messenger(new abchandle()); @Nullable @Override public IBinder onBind(Intent intent) { return messenger.getBinder(); } }
上面是创建服务代码
标签：intent private exce ack gets puts ide send 简单
原文地址：https://www.cnblogs.com/Ocean123123/p/10956661.html
