PerformNextRunloop.swift

import Foundation

extension CFRunLoop {
  static func performNext(work: @escaping () -> Void) {
    CFRunLoopPerformBlock(CFRunLoopGetMain(), CFRunLoopMode.defaultMode.rawValue, work)
  }
}

Usage:

CFRunLoop.peformNext {
  /* Stuff you want to happen after autolayout is done or whatever */
}