eu.davidea.flexibleadapter

Interface FlexibleAdapter.OnItemMoveListener

All Superinterfaces:

FlexibleAdapter.OnActionStateListener

Enclosing class:

FlexibleAdapter<T extends IFlexible>

public static interface FlexibleAdapter.OnItemMoveListener
extends FlexibleAdapter.OnActionStateListener

Since:

26/01/2016

Method Summary

Modifier and Type	Method and Description
void	onItemMove(int fromPosition, int toPosition) Called when an item has been dragged far enough to trigger a move.
boolean	shouldMoveItem(int fromPosition, int toPosition) Called when the item would like to be swapped.

Methods inherited from interface eu.davidea.flexibleadapter.FlexibleAdapter.OnActionStateListener

onActionStateChanged

Method Detail

shouldMoveItem

boolean shouldMoveItem(int fromPosition,
                       int toPosition)

Called when the item would like to be swapped.

Delegate this permission to the user.

Parameters:

fromPosition - the potential start position of the dragged item

toPosition - the potential resolved position of the swapped item

Returns:

return true if the items can swap (onItemMove() will be called), false otherwise (nothing happens)

Since:

5.0.0-b8

See Also:

FlexibleAdapter.onItemMove(int, int)

onItemMove

void onItemMove(int fromPosition,
                int toPosition)

Called when an item has been dragged far enough to trigger a move. This is called every time an item is shifted, and not at the end of a "drop" event.

The end of the "drop" event is instead handled by FlexibleViewHolder.onItemReleased(int).

Tip: Here, you should call FlexibleAdapter.invalidateItemDecorations(long) to recalculate item offset if any item decoration has been set.

Parameters:

fromPosition - the start position of the moved item

toPosition - the resolved position of the moved item

Since:

5.0.0-b1

See Also:

FlexibleAdapter.shouldMove(int, int)