还是关于蓝牙发送和接受数据的问题

[xin_zzq1]

为什么我30秒的发送下数据给外部蓝牙，程序调试到 mmOutStream.write(data)，就出现socket.close();

private class GetDataThread extends Thread {
        private final BluetoothSocket iSocket;
        private InputStream mmInStream;
        public GetDataThread(BluetoothSocket socket) {
            iSocket = socket; 
        }

        public void run() {
        	try {
				mmInStream = iSocket.getInputStream();
			} catch (IOException e1) {
				// TODO Auto-generated catch block
				e1.printStackTrace();
				return;
			}
        	if(!mBTConnect)
        		return;        	
        	{
	            try {
	            	byte[] data = ｛1,2,3,4,5,6｝
	                mmOutStream.write(data);
	            } catch (IOException e) {
	                Log.e("print", "Exception during write", e);
	            }	
        	}
        Log.e(TAG, "BEGIN mConnectedThread");
        int Err = ConstDefine.enumNetPromptMsg.ErrOK;
        final int len = 9;
		byte b[] = new byte[len];
		Calendar now = Calendar.getInstance();
		mBeginMillsecond  = now.getTimeInMillis();
        while (readflag) {
        	if(!mBTConnect)
        	{	 
        		return;
        	}
            try {	                    
                if(mmInStream.read(b) != -1){	        
             
                }
            }catch (IOException e) {
                Log.e(TAG, "disconnected", e);
                cancel();
                break;
            }        
         }            
        }
       
        public void cancel() {
            try {
            	
            		if(mmOutStream != null){mmOutStream.close();}
                    if(mmInStream != null){mmInStream.close();}
                   // if(mmSocket != null){mmSocket.close();}
            } catch (IOException e) {
                //Log.e(TAG, "close() of connect socket failed", e);
            }
        }
    }

[xin_zzq1]

来个人帮忙忙咯~~