A Boolean value that determines whether the status bar is hidden.
YES means the status bar is hidden;
NO means it's visible.
Changing the value of this property changes the visibility of the status bar immediately—that is, without animations.
The frame rectangle defining the area of the status bar.
The minimum amount of time (measured in seconds) an app may run a critical background task in the background.
Attempts to open the resource at the specified URL.
Sets the icon of a Newsstand app to an image depicting the current issue of a publication.