Swift - Reorder UITableView cells

Question

I do know that it\'s not too hard to do it in objective C , the problem is I\'m learning Swift by skipping Objective C.

https://developer.apple.com/library/ios/docu

Answer 1

All the same rules apply as in Objective-C. You set the table view data source and delegate just like you would in Objective-C.

func tableView(tableView: UITableView!, canMoveRowAtIndexPath indexPath: NSIndexPath!) -> Bool {
    return true // Yes, the table view can be reordered
}

func tableView(tableView: UITableView!, moveRowAtIndexPath fromIndexPath: NSIndexPath!, toIndexPath: NSIndexPath!) {
    // update the item in my data source by first removing at the from index, then inserting at the to index.
    let item = items[fromIndexPath.row]
    items.removeAtIndex(fromIndexPath.row)
    items.insert(item, atIndex: toIndexPath.row)
}

If you need finer grain control, you can also implement

func tableView(tableView: UITableView!, targetIndexPathForMoveFromRowAtIndexPath sourceIndexPath: NSIndexPath!, toProposedIndexPath proposedDestinationIndexPath: NSIndexPath!) -> NSIndexPath! {
    …
}