Using shouldPerformSegueWithIdentifier( ) method in Swift

Question

I am trying to use swift\'s shouldPerformSegueWithIdentifier() method, but it accepts 2 arguments. These are (identifier: String!, sender:AnyObject)

My main goal is

Answer 1

isn't it what you want to do?

override func shouldPerformSegueWithIdentifier(identifier: String!, sender: AnyObject!) -> Bool {
    if identifier == "LoginSuccessSegue" { // you define it in the storyboard (click on the segue, then Attributes' inspector > Identifier

        var segueShouldOccur = /** do whatever you need to set this var to true or false */

        if !segueShouldOccur {
            println("*** NOPE, segue wont occur")
            return false
        }
        else {
            println("*** YEP, segue will occur")
        }
    }

    // by default, transition
    return true
}