When the view is visible onscreen, this guide reflects the portion of the view that is not covered by other content. The safe area of a view reflects the area covered by navigation bars, tab bars, toolbars, and other ancestors that obscure a view controller’s view. (In tvOS, the safe area incorporates the screen’s bezel, as defined by the overscanCompensationInsets
property of UIScreen.) It also covers any additional space defined by the view controller's additionalSafeAreaInsets
property. If the view is not currently installed in a view hierarchy, or is not yet visible onscreen, the layout guide always matches the edges…
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