Merge branch 'wxr4' into temp-wxr

wxr

2021-04-19 bbcd6c2017762f9a0e6cf0ac6466bbf78f593b14

 HDL-ON_Android/Application.cs

@@ -85,7 +85,8 @@
                }
                catch (Exception ex)
                {
                    Console.WriteLine(ex.Message);
                    MainPage.Log(ex.Message);
                    BaseActivity.VerifyDateTime = DateTime.MaxValue;
                }
            };