Merge branch 'WJC' into wxr7

wxr

2021-09-01 4c0b2ce14b299b3409dfee230a052979c2844de4

 HDL_ON/UI/UI2/4-PersonalCenter/AddFunction/DeviceListPage.cs

@@ -91,7 +91,13 @@
                }
                finally
                {
                    Application.RunOnMainThread(() => { waitPage.Hide(); });
                    Application.RunOnMainThread(() => {
                        if (waitPage != null)
                        {
                            waitPage.RemoveFromParent();
                            waitPage = null;
                        }
                    });
                }
            })
            { IsBackground = true }.Start();