Swift: how to change Edit/Done buttons behaviour/function - ios

Question

In my iOS app I have a UITableViewController whose rows contain data and data picker. I want to change te function of the buttons Edit and Done. I would like the Edit button to allow the user to write/insert data (instead of deleting rows), while I would like the Done button to save to save the data (and not just exiting the edit mode). I've added to my code the following:
// The following two functions remove the red minus sign
override func tableView(tableView: UITableView, editingStyleForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCellEditingStyle {
return UITableViewCellEditingStyle.None
}
override func tableView(tableView: UITableView, shouldIndentWhileEditingRowAtIndexPath indexPath: NSIndexPath) -> Bool {
return false
}
in order to avoid appearing the circle red minus, but how can I override the functions according to Edit or Done value of the button? I heard about delegates but I'm new to iOS and I don't know what they are...if someone can explain me I would be grateful.

Answer 1

Please try this code block :-)
import UIKit
// You can initialise an instance of this class manually or configure it on storyboard
class TableViewController: UITableViewController {
// MARK:- This part is for demo purpose
override func viewDidLoad() {
super.viewDidLoad()
tableView.registerClass(UITableViewCell.self, forCellReuseIdentifier: "Cell")
}
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 5
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath)
cell.backgroundColor = UIColor.yellowColor()
cell.textLabel?.text = "\(indexPath.row)"
return cell
}
// MARK:- From here is the main part to answer your question
override func tableView(tableView: UITableView, canEditRowAtIndexPath indexPath: NSIndexPath) -> Bool {
return true
}
override func tableView(tableView: UITableView, shouldIndentWhileEditingRowAtIndexPath indexPath: NSIndexPath) -> Bool {
return false
}
override func tableView(tableView: UITableView, editActionsForRowAtIndexPath indexPath: NSIndexPath) -> [UITableViewRowAction]? {
let editAction = UITableViewRowAction(style: UITableViewRowActionStyle.Default, title: "Edit") { (action, indexPath) -> Void in
print("Write/Insert data here")
}
let doneAction = UITableViewRowAction(style: UITableViewRowActionStyle.Default, title: "Done") { (action, indexPath) -> Void in
print("Save data here")
}
doneAction.backgroundColor = UIColor.blueColor()
return [doneAction, editAction]
}
}
You will see the result like this