How to swipe to delete in a table view

Question

Hello,

I'm having trouble using the swipe to delete feature with Swift specifically, I implemented the following method to my table view but the delete button will not appear when I swipe across the simulator with the pointer. I tried to override the method but I got the following error saying,

• override can only be specified on class members

   func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) { if editingStyle == .Delete { // Delete the row from the data source Names.removeAtIndex(indexPath.row) Locations.removeAtIndex(indexPath.row) Types.removeAtIndex(indexPath.row) IsVisited.removeAtIndex(indexPath.row) Images.removeAtIndex(indexPath.row) print("Total Item: \\(Names.count)") for name in Names { print(name) } 

Answer 1

instead of declaring variables for each property, I now define a Information object to save all of the information. I replace the following variables:

var Image = ""
var Name = ""
var Type = ""
var Location = ""

with

var information: InformationSource! 

Then I connected the label object from the object library in the prototype cell. I made a label for Field and Value , the field will hold Image, Name,Type, Location. Value will hold the values of each variable. Then I stacked both Field and Value horizontally

// Delete button
        let deleteAction = UITableViewRowAction(style: UITableViewRowActionStyle.Default, title: "Delete",handler: { (action, indexPath) -> Void in

            // Delete the row from the data source
            self.InformationSource.removeAtIndex(indexPath.row)

            self.tableView.deleteRowsAtIndexPaths([indexPath], withRowAnimation: .Fade)
        })

Answer 2

Try putting this :

override func tableView(tableView: UITableView, canEditRowAtIndexPath indexPath: NSIndexPath) -> Bool {
    return true
}

override func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) {

}

override func tableView(tableView: UITableView,
    editActionsForRowAtIndexPath indexPath: NSIndexPath) -> [UITableViewRowAction]? {
    let block = UITableViewRowAction(style: .Normal, title: "Block") { action, index in
        print("Block")
        self.removeObjectAtIndexPath(indexPath, animated: true)
    }
    let delete = UITableViewRowAction(style: .Default, title: "Delete") { action, index in
        print("Delete")
        self.removeObjectAtIndexPath(indexPath, animated: true)
    }
    return [delete, block]
}

Answer 3

Try to use existing solutions. https://github.com/CEWendel/SWTableViewCell It works fine for me.

Check swift implementation here: https://github.com/torryharris/TH-SwipeCell