MylesCaley

// instead of creating and destroying constraints all the time we can just
// add multiple constraints on the same object and then change the priority
// and indicate which one is active
if feedItem!.prototypeUpdate?.media.count <= 1 {
  mediaViewWidthConstraintLarge.priority = 995
  mediaViewWidthContraint.priority = 999
  mediaViewWidthConstraintLarge.isActive = true
  mediaViewWidthContraint.isActive = false
} else {
  mediaViewWidthConstraintLarge.priority = 999

MylesCaley

extension UITextView {

  func sizeThatWillFitAllText()->CGFloat {
    return self.sizeThatFits((self.frame.size)).height
  }
}

self.textViewHeightConstraintOutlet.constant = desiredTextViewHeight < CGFloat(75) ? desiredTextViewHeight : CGFloat(75)
      
      let textViewWantsHeightObservable = self.textViewHeightConstraintOutlet

MylesCaley

import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
  
  var isFullScreen = false
  
  func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
    // create notifications from wherever to signal fullscreen