PROSAGA码农传奇-通讯技术-Android蓝牙套接字教程，用于非阻塞通信

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  <P>
    看起来答案几乎是你做不到的
  </p>
  <P>
    然而，通过一些线程魔法，你可以让你的系统以你想要的方式工作
  </p>
   <pre>
    <code>
         BluetoothSocketListener bsl = new BluetoothSocketListener(socket, handler, messageText);
    Thread messageListener = new Thread(bsl);
    messageListener.start();

</code>
  </pre>
  <P>
    消息系统
  </p>
   <pre>
    <code>
       private class MessagePoster implements Runnable {
    private TextView textView;
    private String message;

public MessagePoster(TextView textView, String message) {
      this.textView = textView;
      this.message = message;
    }

public void run() {
      textView.setText(message);
    }     
  }

</code>
  </pre>
  <P>
    套接字监听器
  </p>
   <pre>
    <code>
      private class BluetoothSocketListener implements Runnable {

private BluetoothSocket socket;
  private TextView textView;
  private Handler handler;

public BluetoothSocketListener(BluetoothSocket socket, 
                                 Handler handler, TextView textView) {
    this.socket = socket;
    this.textView = textView;
    this.handler = handler;
  }

public void run() {
  int bufferSize = 1024;
  byte[] buffer = new byte[bufferSize];      
  try {
    InputStream instream = socket.getInputStream();
    int bytesRead = -1;
    String message = "";
    while (true) {
      message = "";
      bytesRead = instream.read(buffer);
      if (bytesRead != -1) {
        while ((bytesRead==bufferSize)&&(buffer[bufferSize-1] != 0)) {
          message = message + new String(buffer, 0, bytesRead);
          bytesRead = instream.read(buffer);
        }
        message = message + new String(buffer, 0, bytesRead - 1);

handler.post(new MessagePoster(textView, message));              
        socket.getInputStream();
      }
    }
  } catch (IOException e) {
    Log.d("BLUETOOTH_COMMS", e.getMessage());
  } 
}
}

</code>
  </pre>
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