从Xcode10.3.1升级到Xcode11.1之后,我在所有UIView上添加的自定义活动指示器都消失了。它是这样添加到keyWindow中的:
UIApplication.shared.keyWindow!.addSubview(PKHUD.sharedHUD)现在,它比其他UIView更低:

发布于 2019-11-13 03:52:00
您的UIView可能需要重构。
查看检查器,一定要看到Buildtime警告:
'keyWindow' was deprecated in iOS 13.0: Should not be used for applications that support multiple scenes as it returns a key window across all connected sceneshttps://stackoverflow.com/questions/58765899
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