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  • Handler主线程和子线程相通信

    //创建主线程的handler
    private Handler handler = new Handler(){
    @Override
    public void handleMessage(Message msg) {
    threadHandler.sendEmptyMessage(1);
    }
    };
    private Button button1 ,button2;
    private HandlerThread handlerThread;
    private Handler threadHandler;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    button1 = findViewById(R.id.send);
    button2 = findViewById(R.id.stop);
    //子线程的handler的创建
    handlerThread = new HandlerThread("HandlerThread");
    handlerThread.start();
    threadHandler = new Handler(handlerThread.getLooper()){
    @Override
    public void handleMessage(Message msg) {
    Log.i("TAG", "Thread---handleMessage: ");
    handler.sendEmptyMessage(1);
    }
    };

    }

    @Override
    public void onClick(View v) {
    switch (v.getId()){
    case R.id.send:
    handler.sendEmptyMessage(1);
    break;
    case R.id.stop:
    handler.removeMessages(1);
    break;
    }
    }
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  • 原文地址:https://www.cnblogs.com/liunx1109/p/9767415.html
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