Android udpserver不断接收数据信息问题

Question

通过udpserver循环接收客户端发来的数据，将所有的数据显示在界面我这边就通过while循环在线程中接收数据，然后通过handler将数据显示在主界面上！可是为什么有时候会卡死！    public class UDPServer implements Runnable {         private byte[] msg = new byte[1024];         private boolean life = true;         private DatagramSocket dSocket = null;         public UDPServer() {             try {                 dSocket = new DatagramSocket(17009);             } catch (SocketException e) {                 e.printStackTrace();             }         }         /**          * @return the life          */         public boolean isServer() {             return life;         }         /**          * @param lifes the life to set          */         public void setServer(boolean lifes) {             this.life = lifes;             LogUtil.e("dSocket.isClosed()show==");             if (life == false && dSocket != null) {                               if (!dSocket.isClosed()) {                     dSocket.close();                 }                 dSocket.disconnect();               //                dSocket = null;             }         }         @Override         public void run() {             DatagramPacket dPacket = new DatagramPacket(msg, msg.length);                      while (life) {                 try {                     Thread.sleep(5);                     if (dSocket != null) {   dSocket.receive(dPacket);                                     String datas = ByteUtil.byte2HexStr(dPacket.getData(), dPacket.getLength());                                             //将收到的消息发给主界面                                               if (dPacket.getAddress() != null) {                             Message message = new Message();                             message.obj = dPacket.getAddress() + "--" + datas;                             message.what = 2;                             myHandler.sendMessage(message);                         }                     } else {                         life = false;                     }                 } catch (IOException e) {                     life = false;                     if (dSocket != null) {                         if (!dSocket.isClosed()) {                             dSocket.close();                         }                         dSocket.disconnect();                     }                 } catch (InterruptedException e) {                     life = false;                     if (dSocket != null) {                         if (!dSocket.isClosed()) {                             dSocket.close();                         }                         dSocket.disconnect();                     }                 }             }         }     }