Added previous delegate calls for UINavigationController (#430)

* Added previous delegate calls for UINavigationController * Revert cocoapods version
HeroTransitions · Apr 27, 2018 · 0918c28 · 0918c28
1 parent 7d61342
commit 0918c28
Showing 1 changed file with 12 additions and 0 deletions.
diff --git a/Sources/Transition/HeroTransition+UINavigationControllerDelegate.swift b/Sources/Transition/HeroTransition+UINavigationControllerDelegate.swift
@@ -23,6 +23,18 @@
 import UIKit
 
 extension HeroTransition: UINavigationControllerDelegate {
+  public func navigationController(_ navigationController: UINavigationController, willShow viewController: UIViewController, animated: Bool) {
+    if let previousNavigationDelegate = navigationController.previousNavigationDelegate {
+      previousNavigationDelegate.navigationController?(navigationController, willShow: viewController, animated: animated)
+    }
+  }
+
+  public func navigationController(_ navigationController: UINavigationController, didShow viewController: UIViewController, animated: Bool) {
+    if let previousNavigationDelegate = navigationController.previousNavigationDelegate {
+      previousNavigationDelegate.navigationController?(navigationController, didShow: viewController, animated: animated)
+    }
+  }
+
   public func navigationController(_ navigationController: UINavigationController, animationControllerFor operation: UINavigationControllerOperation, from fromVC: UIViewController, to toVC: UIViewController) -> UIViewControllerAnimatedTransitioning? {
     guard !isTransitioning else { return nil }
     self.state = .notified