A visual element occupying a portion of the display, typically positioned at the top or bottom, can be implemented in iOS applications using Swift. This graphical user interface component often serves as a container for controls or information, presenting a focused area of functionality to the user. An example would be a bar displayed at the bottom of the screen presenting options relative to the content above, while still permitting the primary content to remain visible.
Such a feature improves user experience by providing readily accessible controls without obscuring the entire screen. Its implementation allows developers to create more intuitive interfaces and streamlined workflows. Historically, this approach stems from a desire to maximize screen real estate and to offer a clear separation between primary content and related actions or supplementary information.
