Trait UICollectionViewDragDelegate 

pub unsafe trait UICollectionViewDragDelegate: NSObjectProtocol + MainThreadOnly {
    // Provided methods
    fn collectionView_itemsForBeginningDragSession_atIndexPath(
        &self,
        collection_view: &UICollectionView,
        session: &ProtocolObject<dyn UIDragSession>,
        index_path: &NSIndexPath,
    ) -> Retained<NSArray<UIDragItem>>
       where Self: Sized + Message { ... }
    fn collectionView_itemsForAddingToDragSession_atIndexPath_point(
        &self,
        collection_view: &UICollectionView,
        session: &ProtocolObject<dyn UIDragSession>,
        index_path: &NSIndexPath,
        point: CGPoint,
    ) -> Retained<NSArray<UIDragItem>>
       where Self: Sized + Message { ... }
    fn collectionView_dragPreviewParametersForItemAtIndexPath(
        &self,
        collection_view: &UICollectionView,
        index_path: &NSIndexPath,
    ) -> Option<Retained<UIDragPreviewParameters>>
       where Self: Sized + Message { ... }
    fn collectionView_dragSessionWillBegin(
        &self,
        collection_view: &UICollectionView,
        session: &ProtocolObject<dyn UIDragSession>,
    )
       where Self: Sized + Message { ... }
    fn collectionView_dragSessionDidEnd(
        &self,
        collection_view: &UICollectionView,
        session: &ProtocolObject<dyn UIDragSession>,
    )
       where Self: Sized + Message { ... }
    fn collectionView_dragSessionAllowsMoveOperation(
        &self,
        collection_view: &UICollectionView,
        session: &ProtocolObject<dyn UIDragSession>,
    ) -> bool
       where Self: Sized + Message { ... }
    fn collectionView_dragSessionIsRestrictedToDraggingApplication(
        &self,
        collection_view: &UICollectionView,
        session: &ProtocolObject<dyn UIDragSession>,
    ) -> bool
       where Self: Sized + Message { ... }
}

Available on crate feature UICollectionView only.

Apple’s documentation

Provided Methods

fn collectionView_itemsForBeginningDragSession_atIndexPath( &self, collection_view: &UICollectionView, session: &ProtocolObject<dyn UIDragSession>, index_path: &NSIndexPath, ) -> Retained<NSArray<UIDragItem>>

where Self: Sized + Message,

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

fn collectionView_itemsForAddingToDragSession_atIndexPath_point( &self, collection_view: &UICollectionView, session: &ProtocolObject<dyn UIDragSession>, index_path: &NSIndexPath, point: CGPoint, ) -> Retained<NSArray<UIDragItem>>

where Self: Sized + Message,

Available on crate features UIDragItem and UIDragSession and UIResponder and UIScrollView and UIView and objc2-core-foundation only.

fn collectionView_dragPreviewParametersForItemAtIndexPath( &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.

fn collectionView_dragSessionWillBegin( &self, collection_view: &UICollectionView, session: &ProtocolObject<dyn UIDragSession>, )

where Self: Sized + Message,

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

fn collectionView_dragSessionDidEnd( &self, collection_view: &UICollectionView, session: &ProtocolObject<dyn UIDragSession>, )

where Self: Sized + Message,

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

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

where Self: Sized + Message,

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

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

where Self: Sized + Message,

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

Trait Implementations

impl ProtocolType for dyn UICollectionViewDragDelegate

const NAME: &'static str = "UICollectionViewDragDelegate"

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 UICollectionViewDragDelegate

where T: ?Sized + Message + UICollectionViewDragDelegate,

Implementations on Foreign Types

impl<T> UICollectionViewDragDelegate for ProtocolObject<T>

where T: ?Sized + UICollectionViewDragDelegate,

Implementors