From c8b7a94b6d0cbdf93a8d9bc2457edbf158bd418c Mon Sep 17 00:00:00 2001
From: Kun Chen <kun.chen@airbnb.com>
Date: Mon, 1 Aug 2016 22:18:48 -0700
Subject: [PATCH] Fix the issue that current item index may be changed after
 rotation

---
 SwipeView/SwipeView.m | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/SwipeView/SwipeView.m b/SwipeView/SwipeView.m
index 04e942b..238233b 100755
--- a/SwipeView/SwipeView.m
+++ b/SwipeView/SwipeView.m
@@ -480,6 +480,14 @@ - (void)updateScrollViewDimensions
     
     if (!CGSizeEqualToSize(_scrollView.contentSize, contentSize))
     {
+        // contentSize is changed, make sure the content offset is adjusted based on the current item index
+        CGPoint newContentOffset;
+        if (_vertical) {
+          newContentOffset = CGPointMake(_scrollView.contentOffset.x, _currentItemIndex * _itemSize.height);
+        } else {
+          newContentOffset = CGPointMake(_currentItemIndex * _itemSize.width, _scrollView.contentOffset.y);
+        }
+        [self setContentOffsetWithoutEvent:newContentOffset];
         _scrollView.contentSize = contentSize;
     }
 }