@Override
public void run() {
DatagramSocket datagramSocket = null;
while (isContinueListen) {
try {
if (datagramSocket == null) {
datagramSocket = new DatagramSocket(null);
datagramSocket.setReuseAddress(true);
datagramSocket.bind(new InetSocketAddress(listenPort));
datagramSocket.setReceiveBufferSize(512 * 1024);
}
byte[] buffer = new byte[1024 * 1024];
DatagramPacket udpPacket = new DatagramPacket(buffer, buffer.length);
datagramSocket.receive(udpPacket);
LPP.put(udpPacket);
Logg.e(TAG, "收到2000包");
} catch (Exception e) {
e.printStackTrace();
Logg.e(TAG, "收到2000包 error");
continue;
}
}
if (datagramSocket != null) {
datagramSocket.close();
datagramSocket = null;
}
}
@Override
public void run() {
while (isContinueListen) {
DatagramPacket udpPacket = null;
try {
Logg.i(TAG, "准备从LPP列表中取出一个UDP数据报");
udpPacket = LPP.take();
Logg.i(TAG, "从LPP列表中取出了一个UDP数据报");
} catch (InterruptedException e) {
e.printStackTrace();
Logg.e(TAG, "run error");
continue;
}
boolean isScreenLocked = ((ClassWorkActivity) mContext).isScreenLocked();
if (!isScreenLocked) continue;
int packetLen = udpPacket.getLength();
byte[] packetData = udpPacket.getData();
int operationType = myConvertByteArrToInt_bigend(packetData, 0);
System.out.println("操作类型为" + operationType);
// handDraw(packetData);
switch (operationType) {
case OPERATION_TYPE_HANDDRAW:
handDraw(packetData);
break;
case OPERATION_TYPE_ERASE:
eraseArea(packetData);
break;
case OPERATION_TYPE_LINE:
drawLine(packetData);
break;
case OPERATION_TYPE_RECTANGLE:
drawRectangle(packetData);
break;
case OPERATION_TYPE_ELLIPSE:
drawEllipse(packetData);
break;
case OPERATION_TYPE_TEXT:
drawText(packetData);
break;
case OPERATION_TYPE_PAGE:
changePage(packetData);
clearCanvas();
break;
case OPERATION_TYPE_CLEARCANVAS:
clearCanvas();
break;
case OPERATION_TYPE_UNDO:
undo();
break;
case OPERATION_TYPE_REDO:
redo();
break;
case OPERATION_TYPE_MOVECANVAS:
moveCanvas(packetData);
break;
}
} // end of while
} // end of run