What does the safeArea of keyWindow represent?












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The document of safeAreaLyoutGuide writes:



"For the view controller's root view, the layout guide accommodates the status bar, other visible bars, and any additional insets that you specified using the additionalSafeAreaInsets property of your view controller. For other views in the view hierarchy, the layout guide reflects only the portion of the view that is covered by other content."



But there is no mention of keyWindow.I tried to read keyWindow.safeAreaLyoutGuide, I found that no matter what the situation, the keyWindow's safeArea is always the rect which removes the top "ears" and the bottom "chin", whether under UINavigationController or UITabBarController management.



So, can I say that the safeArea of keyWindow must be the area where the "ear" and "chin" are removed?










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    0















    The document of safeAreaLyoutGuide writes:



    "For the view controller's root view, the layout guide accommodates the status bar, other visible bars, and any additional insets that you specified using the additionalSafeAreaInsets property of your view controller. For other views in the view hierarchy, the layout guide reflects only the portion of the view that is covered by other content."



    But there is no mention of keyWindow.I tried to read keyWindow.safeAreaLyoutGuide, I found that no matter what the situation, the keyWindow's safeArea is always the rect which removes the top "ears" and the bottom "chin", whether under UINavigationController or UITabBarController management.



    So, can I say that the safeArea of keyWindow must be the area where the "ear" and "chin" are removed?










    share|improve this question



























      0












      0








      0








      The document of safeAreaLyoutGuide writes:



      "For the view controller's root view, the layout guide accommodates the status bar, other visible bars, and any additional insets that you specified using the additionalSafeAreaInsets property of your view controller. For other views in the view hierarchy, the layout guide reflects only the portion of the view that is covered by other content."



      But there is no mention of keyWindow.I tried to read keyWindow.safeAreaLyoutGuide, I found that no matter what the situation, the keyWindow's safeArea is always the rect which removes the top "ears" and the bottom "chin", whether under UINavigationController or UITabBarController management.



      So, can I say that the safeArea of keyWindow must be the area where the "ear" and "chin" are removed?










      share|improve this question
















      The document of safeAreaLyoutGuide writes:



      "For the view controller's root view, the layout guide accommodates the status bar, other visible bars, and any additional insets that you specified using the additionalSafeAreaInsets property of your view controller. For other views in the view hierarchy, the layout guide reflects only the portion of the view that is covered by other content."



      But there is no mention of keyWindow.I tried to read keyWindow.safeAreaLyoutGuide, I found that no matter what the situation, the keyWindow's safeArea is always the rect which removes the top "ears" and the bottom "chin", whether under UINavigationController or UITabBarController management.



      So, can I say that the safeArea of keyWindow must be the area where the "ear" and "chin" are removed?







      ios safearealayoutguide






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      share|improve this question













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      share|improve this question








      edited Nov 21 '18 at 11:18







      Colick

















      asked Nov 21 '18 at 9:14









      ColickColick

      113




      113
























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