2020-12-23 1.调整mqtt挤下线，跑ui线程。2.LoadEvent_CheckLinkStatus方法调整

JLChen

2020-12-23 f9f9b0030fdd2691632569b7dcad9d0ddca5e4cf

 HDL_ON/UI/UI2/1-HomePage/MessageCenterPage.cs

old mode 100755
new mode 100644
@@ -464,7 +464,15 @@
        void GetPushMessageList(int queryType = 0)
        {
            bodyScrolView.RemoveAll();
            PushMessageInfoList.Clear();
            if(PushMessageInfoList == null)
            {
                PushMessageInfoList = new List<PushMessageInfo>();
            }
            else
            {
                PushMessageInfoList.Clear();
            }
          
            YearMark = "";//标记清空
            if (string.IsNullOrEmpty(OnAppConfig.Instance.PushId))
            {