UITableViewCell 删除滑动动画丑陋

Question

I have the following problem. When I delete UITableViewCells from my UITableView with "swipe to delete" I see an ugly behaviour of the UITableView. Regardless which animation I choose in the deleteRows method all deletions result in the same strange behaviour.

This is my code for deleting the cell

func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCellEditingStyle, forRowAt indexPath: IndexPath) {
    if editingStyle == .delete {
        print("Deleted")

        self.tvItems.beginUpdates()

        if(indexPath.section == 0){
            Shoppingcart.shared.removeItemForId(ident: indexPath.row)
        }else if (indexPath.section == 1){
            Shoppingcart.shared.serviceContent.remove(at: indexPath.row)
        }

        if let parent = self.parent as? CollectionViewController{
            parent.collectionView?.reloadData()
        }
        self.tvItems.deleteRows(at: [indexPath], with: .fade)

        self.tvItems.endUpdates()

    }
}  

Here is an image of the broken animation:

Answer 1

I found a solution for my problem. The tableviewcell hight estimation was set on automatic. I did set the hight on the same as the row height and the broken animation disappeared.

Settings for the broken animation:

Settings for the working animation:

Answer 2

I had A LOT of trouble with this. Moving completion(true) to the top instead of at the bottom solved the problem. Hope it helps someone out there!

    alert.addAction(UIAlertAction(title: "Delete", style: .destructive) { (action) in
        completion(true) // *** PUT THIS HERE!!! ****
        self.searchFoodView.beginUpdates()
        self.foodMachine.deleteFood(at: indexPath.row - 1)
        self.searchFoodView.deleteRows(at: [indexPath], with: .fade)
        self.searchFoodView.endUpdates()
    })