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, RecyclerView.ViewHolder viewHolder) Invoked whenever drag gesture is canceled for the given viewHolder.
void	onDragFinished(ItemDragHelper dragHelper, RecyclerView.ViewHolder viewHolder, int fromPosition, int toPosition) Invoked whenever drag gesture is finished for the given viewHolder.
void	onDragStarted(ItemDragHelper dragHelper, RecyclerView.ViewHolder viewHolder) Invoked whenever drag gesture is started for the given viewHolder.

Method Detail

onDragStarted

void onDragStarted(@NonNull
                   ItemDragHelper dragHelper,
                   @NonNull
                   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
                    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
                    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.