Summary: Ctors | Methods | Inherited Methods

BandPredicate.NonDraggableArea

Kotlin |Java

public static final class BandPredicate.NonDraggableArea
extends BandPredicate

java.lang.Object
↳	androidx.recyclerview.selection.BandPredicate
	↳	androidx.recyclerview.selection.BandPredicate.NonDraggableArea

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A BandPredicate that allows initiation of band selection in any area that is not draggable as determined by consulting ItemDetailsLookup.ItemDetails.inDragRegion(MotionEvent). By default empty areas (those with a position that maps to RecyclerView.NO_POSITION are considered non-draggable.

Use this implementation in order to permit band selection in otherwise empty areas of a View. This is useful especially in list layouts where there is no empty space surrounding the list items, and individual list items may contain extra white space (like in a list of varying length words).

See also:

• ItemDetailsLookup.ItemDetails.inDragRegion(MotionEvent)

Summary

Public constructors
NonDraggableArea(RecyclerView recyclerView, ItemDetailsLookup<?> detailsLookup) Creates a new instance.

Public methods
boolean	canInitiate(MotionEvent e)

Inherited methods
From class androidx.recyclerview.selection.BandPredicate abstract boolean canInitiate(MotionEvent e)
From class java.lang.Object Object clone() boolean equals(Object arg0) void finalize() final Class<?> getClass() int hashCode() final void notify() final void notifyAll() String toString() final void wait(long arg0, int arg1) final void wait(long arg0) final void wait()

Public constructors

NonDraggableArea

public NonDraggableArea (RecyclerView recyclerView, 
                ItemDetailsLookup<?> detailsLookup)

Creates a new instance.

Parameters
recyclerView	RecyclerView: the owner RecyclerView
detailsLookup	ItemDetailsLookup: provides access to item details.

Public methods

canInitiate

public boolean canInitiate (MotionEvent e)

Parameters
e	MotionEvent

Returns
boolean	true if band selection can be initiated in response to the MotionEvent.