Trait UICollectionViewDropDelegate 

pub unsafe trait UICollectionViewDropDelegate: NSObjectProtocol + MainThreadOnly {
    // Provided methods
    fn collectionView_performDropWithCoordinator(
        &self,
        collection_view: &UICollectionView,
        coordinator: &ProtocolObject<dyn UICollectionViewDropCoordinator>,
    )
       where Self: Sized + Message { ... }
    fn collectionView_canHandleDropSession(
        &self,
        collection_view: &UICollectionView,
        session: &ProtocolObject<dyn UIDropSession>,
    ) -> bool
       where Self: Sized + Message { ... }
    fn collectionView_dropSessionDidEnter(
        &self,
        collection_view: &UICollectionView,
        session: &ProtocolObject<dyn UIDropSession>,
    )
       where Self: Sized + Message { ... }
    fn collectionView_dropSessionDidUpdate_withDestinationIndexPath(
        &self,
        collection_view: &UICollectionView,
        session: &ProtocolObject<dyn UIDropSession>,
        destination_index_path: Option<&NSIndexPath>,
    ) -> Retained<UICollectionViewDropProposal>
       where Self: Sized + Message { ... }
    fn collectionView_dropSessionDidExit(
        &self,
        collection_view: &UICollectionView,
        session: &ProtocolObject<dyn UIDropSession>,
    )
       where Self: Sized + Message { ... }
    fn collectionView_dropSessionDidEnd(
        &self,
        collection_view: &UICollectionView,
        session: &ProtocolObject<dyn UIDropSession>,
    )
       where Self: Sized + Message { ... }
    fn collectionView_dropPreviewParametersForItemAtIndexPath(
        &self,
        collection_view: &UICollectionView,
        index_path: &NSIndexPath,
    ) -> Option<Retained<UIDragPreviewParameters>>
       where Self: Sized + Message { ... }
}

Available on crate feature UICollectionView only.

Apple’s documentation

Provided Methods

fn collectionView_performDropWithCoordinator( &self, collection_view: &UICollectionView, coordinator: &ProtocolObject<dyn UICollectionViewDropCoordinator>, )

where Self: Sized + Message,

Available on crate features UIResponder and UIScrollView and UIView only.

fn collectionView_canHandleDropSession( &self, collection_view: &UICollectionView, session: &ProtocolObject<dyn UIDropSession>, ) -> bool

where Self: Sized + Message,

Available on crate features UIDragSession and UIResponder and UIScrollView and UIView only.

fn collectionView_dropSessionDidEnter( &self, collection_view: &UICollectionView, session: &ProtocolObject<dyn UIDropSession>, )

where Self: Sized + Message,

Available on crate features UIDragSession and UIResponder and UIScrollView and UIView only.

fn collectionView_dropSessionDidUpdate_withDestinationIndexPath( &self, collection_view: &UICollectionView, session: &ProtocolObject<dyn UIDropSession>, destination_index_path: Option<&NSIndexPath>, ) -> Retained<UICollectionViewDropProposal>

where Self: Sized + Message,

Available on crate features UIDragSession and UIDropInteraction and UIResponder and UIScrollView and UIView only.

fn collectionView_dropSessionDidExit( &self, collection_view: &UICollectionView, session: &ProtocolObject<dyn UIDropSession>, )

where Self: Sized + Message,

Available on crate features UIDragSession and UIResponder and UIScrollView and UIView only.

fn collectionView_dropSessionDidEnd( &self, collection_view: &UICollectionView, session: &ProtocolObject<dyn UIDropSession>, )

where Self: Sized + Message,

Available on crate features UIDragSession and UIResponder and UIScrollView and UIView only.

fn collectionView_dropPreviewParametersForItemAtIndexPath( &self, collection_view: &UICollectionView, index_path: &NSIndexPath, ) -> Option<Retained<UIDragPreviewParameters>>

where Self: Sized + Message,

Available on crate features UIDragPreviewParameters and UIPreviewParameters and UIResponder and UIScrollView and UIView only.

Trait Implementations

impl<T> ImplementedBy<T> for dyn UICollectionViewDropDelegate

where T: ?Sized + Message + UICollectionViewDropDelegate,

impl ProtocolType for dyn UICollectionViewDropDelegate

const NAME: &'static str = "UICollectionViewDropDelegate"

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.

Dyn Compatibility

This trait is dyn compatible.

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

Implementations on Foreign Types

impl<T> UICollectionViewDropDelegate for ProtocolObject<T>

where T: ?Sized + UICollectionViewDropDelegate,

Implementors