universum.studios.android.recycler.helper

Interface ItemDragHelper.OnDragListener

Enclosing class:

ItemDragHelper

public static interface ItemDragHelper.OnDragListener

Listener which may be used to receive callbacks about started, finished or canceled drag gesture for a specific RecyclerView.ViewHolder instance.

Since:

1.0

Author:

Martin Albedinsky

Method Summary

Modifier and Type	Method and Description
void	onDragCanceled(ItemDragHelper dragHelper, androidx.recyclerview.widget.RecyclerView.ViewHolder viewHolder) Invoked whenever drag gesture is canceled for the given viewHolder.
void	onDragFinished(ItemDragHelper dragHelper, androidx.recyclerview.widget.RecyclerView.ViewHolder viewHolder, int fromPosition, int toPosition) Invoked whenever drag gesture is finished for the given viewHolder.
void	onDragStarted(ItemDragHelper dragHelper, androidx.recyclerview.widget.RecyclerView.ViewHolder viewHolder) Invoked whenever drag gesture is started for the given viewHolder.

Method Detail

onDragStarted

void onDragStarted(@NonNull
                   ItemDragHelper dragHelper,
                   @NonNull
                   androidx.recyclerview.widget.RecyclerView.ViewHolder viewHolder)

Invoked whenever drag gesture is started for the given viewHolder.

Parameters:

dragHelper - The item helper controlling the drag gesture for the view holder.

viewHolder - The view holder for which has been the drag gesture started.

See Also:

onDragFinished(ItemDragHelper, RecyclerView.ViewHolder, int, int)

onDragFinished

void onDragFinished(@NonNull
                    ItemDragHelper dragHelper,
                    @NonNull
                    androidx.recyclerview.widget.RecyclerView.ViewHolder viewHolder,
                    int fromPosition,
                    int toPosition)

Invoked whenever drag gesture is finished for the given viewHolder.

Parameters:

dragHelper - The item helper controlling the drag gesture for the view holder.

viewHolder - The view holder for which has been the drag gesture finished.

fromPosition - The position from which has been the view holder dragged.

toPosition - The position at which has been the view holder dropped.

See Also:

onDragStarted(ItemDragHelper, RecyclerView.ViewHolder)

onDragCanceled

void onDragCanceled(@NonNull
                    ItemDragHelper dragHelper,
                    @NonNull
                    androidx.recyclerview.widget.RecyclerView.ViewHolder viewHolder)

Invoked whenever drag gesture is canceled for the given viewHolder.

Parameters:

dragHelper - The item helper controlling the drag gesture for the view holder.

viewHolder - The view holder for which has been the drag gesture canceled.