Add NSTimer in swift

TimerClass.swift

class ViewController: UIViewController {
    override func viewDidLoad() {
            super.viewDidLoad()
            _ = NSTimer.scheduledTimerWithTimeInterval(1.0/30.0, target: self, selector: #selector(ViewController.methodName), userInfo: nil, repeats: true)
     }
  
    func methodName(){
        print("Method Called")
     }
  }