A sustained touch on the screen of an iOS device, typically lasting for a predefined duration, triggers secondary actions or contextual menus. For instance, holding an app icon on the Home Screen initiates the icon-jiggling mode for rearranging or deleting applications, or presents a quick actions menu if the app supports it.
This interaction method enhances user experience by providing efficient access to frequently used functions without navigating through multiple layers of menus. It simplifies complex tasks and contributes to a more intuitive interaction paradigm. Its implementation stems from the need to optimize screen real estate and declutter interfaces, offering a hidden layer of functionality accessible through a deliberate gesture.