Trait NSCollectionLayoutEnvironment 

pub unsafe trait NSCollectionLayoutEnvironment: NSObjectProtocol + MainThreadOnly {
    // Provided methods
    fn container(
        &self,
    ) -> Retained<ProtocolObject<dyn NSCollectionLayoutContainer>>
       where Self: Sized + Message { ... }
    fn traitCollection(&self) -> Retained<UITraitCollection>
       where Self: Sized + Message { ... }
}

Available on crate feature UICollectionViewCompositionalLayout only.

Apple’s documentation

Provided Methods

fn container(&self) -> Retained<ProtocolObject<dyn NSCollectionLayoutContainer>>

where Self: Sized + Message,

fn traitCollection(&self) -> Retained<UITraitCollection>

where Self: Sized + Message,

Available on crate feature UITraitCollection only.

Trait Implementations

impl ProtocolType for dyn NSCollectionLayoutEnvironment

const NAME: &'static str = "NSCollectionLayoutEnvironment"

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 NSCollectionLayoutEnvironment

where T: ?Sized + Message + NSCollectionLayoutEnvironment,

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl<T> NSCollectionLayoutEnvironment for ProtocolObject<T>

where T: ?Sized + NSCollectionLayoutEnvironment,

Implementors