Question

我有一个后台线程，用于创建套接字连接，并根据MainActivity的请求将数据发送到套接字。以下代码是我的沟通主题的一部分：

public class networkTask extends Thread {
  Bundle inB = new Bundle();
  // variables, etc
  private Handler inHandler = new Handler() {
    @Override
    public void handleMessage(Message msg) {
      inB = msg.getData();
      switch (msg.arg1) {
      case 1:
        Log.i ("networkTask", "received CONNECT request");
        connect();
        break;
      case 2:
        Log.i ("networkTask", "received SEND request");
        sendData(inB);
        break;
      default:
        break;
      }
      else 
    }

  public void run() {
    Looper.prepare();
    Log.i("networkTask", "launched");
    Looper.loop();
  }

  public Handler getHandler() {
    return inHandler;
  }
}

我的MainActivity onCreate（）包含：

Log.i(TAG, "create NetworkTask");
netComms = new networkTask();
netComms.start();

然后，当我想发送网络流量时，我有：

Handler outHandler = networktask.getHandler();
Message msg = outHandler.obtainMessage();
myB.putString("out_pack", "connect");
msg.setData(myB);
msg.arg1 = 1;
Log.i(TAG, "sending CONNECT request");
outHandler.sendMessage(msg);

当我尝试运行此代码时，我得到 NetworkOnMainThreadException 。

查看logcat输出消息的PID / TID如下：

 PID   TID
1585  1585       MainActivity    create
1585  1598       networkTask     launched
1585  1585       MainActivity    sending CONNECT request
1585  1585       networkTask     received CONNECT request

为什么networkTask消息处理程序由MainActivity TID而不是networkTask TID提供服务？（这可能不是正确的询问方式。）

处理程序由错误的TID提供服务

0 个答案: