Circle shaped countdown timer.

CocoaPods:

pod 'BKCountDownTimer' 

Manual:

Copy CircleBase.swift, CircleCount.swift, CircleTic.swift, CircleTimer.swift to your project. 

vwCircle.startTimer(block: { (count, minute, second) in print("\(minute) : \(second)") }) { print("complete") }

BKCountDownTimer is available under the MIT license. See the LICENSE file for more info.