Skip to main content

UITraitChangeHandler

objc2_ui_kit

Type Alias UITraitChangeHandler 

Source 
pub type UITraitChangeHandler = *mut DynBlock<dyn Fn(NonNull<ProtocolObject<dyn UITraitEnvironment>>, NonNull<UITraitCollection>)>;
Available on crate features block2 and UITraitCollection only.
Expand description

Apple’s documentation