PSTimer

A simple countdown timer component for iOS apps written in Swift. Just clone or download the repo and drag the PSTimer.swift file into your project.

Initialization

The CountdownTimer class initializer takes a UILabel, as well as the minutes and seconds that the timer should start the countdown from. Make sure to adhere to the CountdownTimerDelegate protocol and implement the countdownEnded() function in order to get notified when the countdown finishes. Example:

class CustomViewController: UIViewController, CountdownTimerDelegate {

  @IBOutlet weak var timeLabel: UILabel!
  var timer: CountdownTimer!

  override func viewDidLoad() {
    // Timer will start at 15:00
    timer = CountdownTimer(timerLabel: timeLabel, startingMin: 15, startingSec: 0)
    timer.delegate = self
  }

  func countdownEnded() -> Void {
    // Handle countdown finishing
  }
}

Start / Stop

You can start and stop the timer with:

timer.start() // Begins countdown
timer.pause() // Pauses countdown
timer.reset() // Pauses countdown and resets to the initial time

License

MIT all the way.