iOS UITableView that uses drag to delete?

You probably need to ask more specific questions.

UITableView has a way to reorder rows that is built-in and which many users will be familiar with. It might be best to use that.

I guess there's also a way to delete a row by swiping.

OK, assuming you want to do this all yourself I might take this approach. When the user starts a drag I would generate an image of the row. Then add the image to an image view, set the image to be partly transparent, and let the user drag the image view. There's some very old sample code from Apple called MoveMe that shows how to drag a view around the screen.

Then it's up to you to manage what happens when the image goes over the trashcan and then when the user drops the image over the trashcan. (Animate the trashcan, remove the row from the table. etc.)

It's conceivable that you could do something clever with the tableview to allow reordering in response to the user moving this image view. You could insert a blank row to indicate where the row is supposed to drop. You could move the blank row up or down as the user moves the image view. Then delete the row and reinsert it in the new position. I think you'll have to do some experimentation to get this right though.

UITableView has built-in support for row deletion. Is there a reason you want your users to do it differently than what they would be used to?