tableView(_:targetIndexPathForMoveFromRowAt:toProposedIndexPath:)
Asks the delegate to return a new index path to retarget a proposed move of a row.
Declaration
optional func tableView(_ tableView: UITableView, targetIndexPathForMoveFromRowAt sourceIndexPath: IndexPath, toProposedIndexPath proposedDestinationIndexPath: IndexPath) -> IndexPathParameters
- tableView:
The table view that is requesting this information.
- sourceIndexPath:
An index path identifying the original location of a row (in its section) that is being dragged.
- proposedDestinationIndexPath:
An index path identifying the currently proposed destination of the row being dragged.
Return Value
An index path locating the desired row destination for the move operation. Return proposedDestinationIndexPath if that location is suitable.
Discussion
This method allows customization of the target row for a particular row as it is being moved up and down a table view. As the dragged row hovers over another row, the destination row slides downward to visually make room for the relocation; this is the location identified by proposedDestinationIndexPath.