Trait UIObjectTraitDefinition

pub unsafe trait UIObjectTraitDefinition: UITraitDefinition + MainThreadOnly {
    // Provided method
    unsafe fn defaultValue(
        mtm: MainThreadMarker,
    ) -> Option<Retained<ProtocolObject<dyn NSObjectProtocol>>>
       where Self: Sized + ClassType { ... }
}

Available on crate feature UITrait only.

Apple’s documentation

Provided Methods

unsafe fn defaultValue( mtm: MainThreadMarker, ) -> Option<Retained<ProtocolObject<dyn NSObjectProtocol>>>

where Self: Sized + ClassType,

The default value for this trait in a trait collection when no value has been set.

Trait Implementations

impl ProtocolType for dyn UIObjectTraitDefinition

const NAME: &'static str = "UIObjectTraitDefinition"

The name of the Objective-C protocol that this type represents.

fn protocol() -> Option<&'static AnyProtocol>

Get a reference to the Objective-C protocol object that this type represents.

impl<T> ImplementedBy<T> for dyn UIObjectTraitDefinition

where T: ?Sized + Message + UIObjectTraitDefinition,

Implementations on Foreign Types

impl<T> UIObjectTraitDefinition for ProtocolObject<T>

where T: ?Sized + UIObjectTraitDefinition,

Implementors

impl UIObjectTraitDefinition for UITraitPreferredContentSizeCategory

impl UIObjectTraitDefinition for UITraitTypesettingLanguage