Merge remote-tracking branch 'origin/wxr4' into dev-tzy

tzy

2021-06-09 692a20fc80688bfa4b20eaca513470f2c3135ec9

 HDL-ON_iOS/Scan.cs

@@ -35,7 +35,6 @@
                var bOn = false;
                mZXingOverlayView.OnCancel += () =>
                {

                    scanner?.Cancel();
                };