Trait UITraitDefinition 

pub unsafe trait UITraitDefinition: MainThreadOnly {
    // Provided methods
    fn identifier(mtm: MainThreadMarker) -> Retained<NSString>
       where Self: Sized + ClassType { ... }
    fn name(mtm: MainThreadMarker) -> Retained<NSString>
       where Self: Sized + ClassType { ... }
    fn affectsColorAppearance(mtm: MainThreadMarker) -> bool
       where Self: Sized + ClassType { ... }
}

Available on crate feature UITrait only.

Apple’s documentation

Provided Methods

fn identifier(mtm: MainThreadMarker) -> Retained<NSString>

where Self: Sized + ClassType,

A unique identifier string for the trait (reverse-DNS format recommended). Allows the trait to be encoded/decoded, and to map both a Swift and Objective-C trait to the same data.

fn name(mtm: MainThreadMarker) -> Retained<NSString>

where Self: Sized + ClassType,

A short human-readable name for the trait, e.g. for printing and debugging output. By default, the trait’s class name is used when not implemented.

fn affectsColorAppearance(mtm: MainThreadMarker) -> bool

where Self: Sized + ClassType,

Whether the trait is used to resolve dynamic colors (or images), and changes to the trait should automatically trigger views using dynamic colors/images to update their appearance. Default is NO.

Trait Implementations

impl ProtocolType for dyn UITraitDefinition

const NAME: &'static str = "UITraitDefinition"

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 UITraitDefinition

where T: ?Sized + Message + UITraitDefinition,

Implementations on Foreign Types

impl<T> UITraitDefinition for ProtocolObject<T>

where T: ?Sized + UITraitDefinition,

Implementors

impl UITraitDefinition for UITraitAccessibilityContrast

impl UITraitDefinition for UITraitActiveAppearance

impl UITraitDefinition for UITraitDisplayGamut

impl UITraitDefinition for UITraitDisplayScale

impl UITraitDefinition for UITraitForceTouchCapability

impl UITraitDefinition for UITraitHDRHeadroomUsageLimit

impl UITraitDefinition for UITraitHorizontalSizeClass

impl UITraitDefinition for UITraitImageDynamicRange

impl UITraitDefinition for UITraitLayoutDirection

impl UITraitDefinition for UITraitLegibilityWeight

impl UITraitDefinition for UITraitListEnvironment

Available on crate feature UITraitListEnvironment only.

impl UITraitDefinition for UITraitPreferredContentSizeCategory

impl UITraitDefinition for UITraitResolvesNaturalAlignmentWithBaseWritingDirection

impl UITraitDefinition for UITraitSceneCaptureState

impl UITraitDefinition for UITraitSplitViewControllerLayoutEnvironment

Available on crate feature UISplitViewControllerLayoutEnvironment only.

impl UITraitDefinition for UITraitTabAccessoryEnvironment

Available on crate feature UITabAccessory only.

impl UITraitDefinition for UITraitToolbarItemPresentationSize

impl UITraitDefinition for UITraitTypesettingLanguage

impl UITraitDefinition for UITraitUserInterfaceIdiom

impl UITraitDefinition for UITraitUserInterfaceLevel

impl UITraitDefinition for UITraitUserInterfaceStyle

impl UITraitDefinition for UITraitVerticalSizeClass