A friendly timer

README.md

init timer

let timer:ATimer = Timer.makeFirendlyTimer(for type: .one)
let aClosure:()->Void = {...}
timer.job = aClosure

start timer

timer.start()

End timer

timer.stop()

ATimer.swift

protocol ATimer {
  func start()
  func stop()
  var isRuning:Bool{get}
  var timeInterval:TimeInterval{get set}
  typealias Job = ()->Void
}
class AReapeatTimer:ATimer{
  var isRuning: Bool {return timer != nil}
  init(job: @escaping Job) {
    self.job = job
  }
  init(){}
  var timeInterval:TimeInterval = 0.1
  var job:Job!
  func start(){
    timer = Timer.scheduledTimer(timeInterval: timeInterval, target: self, selector: #selector(timerJob), userInfo: nil, repeats: true)
  }
  func stop() {
    timer?.invalidate()
    timer = nil
  }

  @objc
  fileprivate func timerJob() {  job() }
  fileprivate var timer:Timer?
}

class AOneTimer: AReapeatTimer {
  override func start() {
    timer = Timer.scheduledTimer(timeInterval: timeInterval, target: self, selector: #selector(timerJob), userInfo: nil, repeats: false)
  }
}

Timer+.swift

import Foundation.NSTimer
extension Timer{
  enum TimerType{
    case repeated, one
  }
  static func makeFirendlyTimer(for type:TimerType) -> ATimer{
    var aTimer:ATimer
    switch type {
    case .repeated:
      aTimer = AReapeatTimer()
    case .one: 
      aTimer = AOneTimer()
    }
    return aTimer
  }
}