Android UDP Code

Package com.chy.socket;
Import java.io.IOException;
Import Java.net.DatagramPacket;
Import Java.net.DatagramSocket;

Import java.net.SocketException;

Import Com.chy.global.GlobalValue;
	public class UdpClient {private Boolean isstop = false;
	Private Datagramsocket datagramsocket = null;
	Private Onreceivelistener onreceivelistener = null;
	
	Private Readthread readthread = null;
	Public interface Onreceivelistener {public void OnReceive (Datagrampacket packet); Class Readthread extends Thread {@Override public void run () {byte[] buffer = new Byte[globalvalue.read_bloc
			K_size];
			Datagrampacket packet = new Datagrampacket (buffer, buffer.length);
					while (!isstop &&!isinterrupted ()) {try {datagramsocket.receive (packet);
					if (Onreceivelistener!= null) {onreceivelistener.onreceive (packet);
				} catch (IOException ex) {ex.printstacktrace (); "}}} public udpclient (int port, Onreceivelistener onreceivelisteneR) {try {datagramsocket = new Datagramsocket (port);
		catch (SocketException ex) {ex.printstacktrace ();
		} if (datagramsocket = = null) {return;
		} This.onreceivelistener = Onreceivelistener;
		Readthread = new Readthread ();
	Readthread.start ();
		Public synchronized Boolean send (byte[] buffer {Boolean result = false;
			if (datagramsocket!= null) {Datagrampacket packet = new Datagrampacket (buffer, buffer.length);
				try {datagramsocket.send (packet);
			result = true;
			catch (IOException ex) {ex.printstacktrace ();
	} return result;
		public void Close () {isstop = true;
			if (readthread!= null &&!readthread.isinterrupted ()) {readthread.interrupt ();
		Readthread = null;
		} if (Datagramsocket!= null) {datagramsocket.close ();
 }
	}
}