uicontrol


Control, Target, and Action in iOS 14

The target–action pattern is one of the oldest in Cocoa, and it’s used with some of the most important interface objects, namely controls (UIControl). That includes buttons (UIButton), switches (UISwitch), segmented controls (UISegmentedControl), and many others. It is also used with UIBarButtonItem because it’s button-like even though it isn’t a control (or even a view). …

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