DraggableState

Interface

Common
@JvmDefaultWithCompatibility
interface DraggableState

State of draggable. Allows for a granular control of how deltas are consumed by the user as well as to write custom drag methods using drag suspend function.

Functions

suspend fun drag(
        dragPriority: MutatePriority = MutatePriority.Default,
        block: suspend DragScope.() -> Unit,
    )

Call this function to take control of drag logic.

All actions that change the logical drag position must be performed within a drag block (even if they don't call any other methods on this object) in order to guarantee that mutual exclusion is enforced.

If drag is called from elsewhere with the dragPriority higher or equal to ongoing drag, ongoing drag will be canceled.

Parameters

dragPriorityof the drag operation
blockto perform drag in
fun dispatchRawDelta(delta: Float)

Dispatch drag delta in pixels avoiding all drag related priority mechanisms.

NOTE: unlike drag, dispatching any delta with this method will bypass scrolling of any priority. This method will also ignore reverseDirection and other parameters set in draggable.

This method is used internally for low level operations, allowing implementers of DraggableState influence the consumption as suits them, e.g. introduce nested scrolling. Manually dispatching delta via this method will likely result in a bad user experience, you must prefer drag method over this one.

Parameters

deltaamount of scroll dispatched in the nested drag process