From 77882c1ef7b9f86f06c08715b125753047c5465d Mon Sep 17 00:00:00 2001
From: Ben Guild <git@benguild.com>
Date: Mon, 7 May 2018 18:12:23 +0900
Subject: [PATCH] Fixing issue with `UIPageViewController` outermost parent.

---
 Sources/PullToDismiss.swift | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Sources/PullToDismiss.swift b/Sources/PullToDismiss.swift
index fbedb05..49c4723 100644
--- a/Sources/PullToDismiss.swift
+++ b/Sources/PullToDismiss.swift
@@ -215,9 +215,14 @@ open class PullToDismiss: NSObject {
     private static func viewControllerFromScrollView(_ scrollView: UIScrollView) -> UIViewController? {
         var responder: UIResponder? = scrollView
         while let r = responder {
-            if let viewController = r as? UIViewController {
+            if var viewController = r as? UIViewController {
+                while let parent = viewController.parent {
+                    viewController = parent
+                }
+
                 return viewController
             }
+
             responder = r.next
         }
         return nil