ios13在跟视图present一个视图然后下拉页面消失重新再present无效 #16
Description
出现错误Warning: Attempt to present <MHNavigationController: 0x7f84da031000> on <MHNavigationController: 0x7f84d9892000> whose view is not in the window hierarchy!怎么解决
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出现错误Warning: Attempt to present <MHNavigationController: 0x7f84da031000> on <MHNavigationController: 0x7f84d9892000> whose view is not in the window hierarchy!怎么解决