Avoid performSegue multiple times

Question

I have more than 20+ buttons in my application. For these buttons if I click twice it performSegue twice and opens the viewcontroller twice, throughout my application in swift iOS?

self.performSegue(withIdentifier: "toViewController", sender: nil)

Answer 1

You can attach a tag to each button and define an array of segues

self.performSegue(withIdentifier:segues[sender.tag], sender: nil)

or simply make the button the source of the segue , if you're not willing to override prepareForSegue

Answer 2

• You could declare a property

  var isSegueEnabled = true
  

• Then implement the method to control whether the segue should be performed

  func shouldPerformSegue(withIdentifier identifier: String, sender: Any?) -> Bool {
      return isSegueEnabled
  }
  

• In prepare(for segue set the property to false

  isSegueEnabled = false
  

• At some point after the presented view controller has been dismissed set isSegueEnabled back to true