UIControlEvent
UIControlEvent is a type used in the UIKit framework of Apple's iOS and macOS operating systems. It represents an event that can be triggered by a user interacting with a UIControl, such as a button, slider, or switch. UIControlEvents are used to define the specific actions that a control should respond to, such as a touch down, touch up inside, or value changed event. These events are typically handled by a target-action mechanism, where a target object and an action method are specified to be called when the event occurs. UIControlEvents are an essential part of building interactive user interfaces in iOS and macOS applications, allowing developers to create responsive and engaging user experiences.