优化了获取播放地址不对的bug

ui/CameraArea.py

@@ -178,7 +178,9 @@ class CameraArea():
     #      获取视频播放地址
     ####################################################
     def doGetPlayUrl(self,textCtr):
-        res = requests.post(self.getGetPlayUrl, data=json.dumps({'devId': self.devId, 'chan': str(self.channel)})).text
+        devId = self.devIdText.GetValue()
+        channel = self.channelText.GetValue()
+        res = requests.post(self.getGetPlayUrl, data=json.dumps({'devId': devId, 'chan': str(channel)})).text
         res = json.loads(res)
         url = res["data"]["url"]
         textCtr.SetValue(url)