Package apple.uikit.protocol

Interface UIDragDropSession

    • Method Detail

      • allowsMoveOperation

        boolean allowsMoveOperation()
        Whether this session allows moving, or not. This is determined based on the UIDragInteraction's delegate's `-dragInteraction:sessionAllowsMoveOperation:`. If true, then the delegate of UIDropInteraction is allowed to return `UIDropOperationMove` from `-dropInteraction:sessionDidUpdate:`.

      • canLoadObjectsOfClass

        boolean canLoadObjectsOfClass​(NSItemProviderReading aClass)
        Returns true if any of the session's items could create any objects of the specified class.

      • hasItemsConformingToTypeIdentifiers

        boolean hasItemsConformingToTypeIdentifiers​(NSArray<java.lang.String> typeIdentifiers)
        Convenience methods to iterate through this session's `items`. Returns true if any of the session's items conforms to any of the specified UTIs.

      • isRestrictedToDraggingApplication

        boolean isRestrictedToDraggingApplication()
        Whether this session is restricted to the application that began the drag. This is determined based on the UIDragInteraction's delegate's `-dragInteraction:sessionIsRestrictedToDraggingApplication:`.

      • items

        NSArray<? extends UIDragItem> items()
        The items in the session. Before the drop happens, the items' NSItemProviders do not allow the data in the NSItemProvider to be loaded. However, `registeredTypeIdentifiers` and metadata are available at any time. You may request the data only inside the UIDropInteractionDelegate's implementation of `-dropInteraction:performDrop:`. When handling the drop, if you display dropped items in a linear order, place them in this order, first to last.

      • locationInView

        CGPoint locationInView​(UIView view)
        The location of the drag in the specified view.