feature request: willDrag hook

[jklundell]

It would be a convenience to add a delegate call just before the addDraggableIndicatorsToCell: animation block. Something like

dragTableViewController:willDragCell:forIndexPath:

in order to prepare the cell for the drag animation.

Use case: my table cells are borderless images, and the stock shadow tends not to be visible when the images are dark. So I've replaced the shadow effect with a slight enlargement of the cell, which works well. I need to composite an overlay imageview to do this right. I'd prefer to do the compositing in a willDrag call. (My workaround is to always composite the overlay for all cells, and control it with .hidden, which is of course not animatable, so I can get the effect I want by setting it to NO inside the animation block.)

[shusta]

Funnily enough, I have this in my personal copy but haven't committed it to github.

Why doesn't - dragTableViewController:addDraggableIndicatorsToCell:forIndexPath: work for this?

[jklundell]

Because addDraggableIndicatorsToCell is animated. I'm looking for something that happens before the animation block. addDraggableIndicatorsToCell works as long as the effect in question happens not to be animatable (.hidden, for example), but I confess to being a bit fuzzy on the effect of adding a subview within the animation.