android蓝牙编程,客户端为什么在捕获异常后开始连接服务器？

Question

try
    {
      this._socket = this._device.createRfcommSocketToServiceRecord(UUID.fromString("00001101-0000-1000-8000-00805F9B34FB"));
      localButton = (Button)findViewById(2131099658);
    }
    catch (IOException localIOException2)
    {
      try
      {
        Button localButton;
        this._socket.connect();
        Toast.makeText(this, "连接" + this._device.getName() + "成功！", 0).show();
        localButton.setText("断开");
      }
      catch (IOException localIOException2)
      {/*code*/}

谢谢了