Prevent INSInfiniteScrollBackgroundView from changing content inset multiple times after consecutive endInfiniteScrollingWithStoppingContentOffset calls

Author: ildar-gilfanov

INSPullToRefresh/INSInfiniteScrollBackgroundView.h

@@ -32,6 +32,7 @@ typedef void(^INSInfinityScrollActionHandler)(UIScrollView *scrollView);
 typedef NS_ENUM(NSUInteger, INSInfiniteScrollBackgroundViewState) {
     INSInfiniteScrollBackgroundViewStateNone = 0,
     INSInfiniteScrollBackgroundViewStateLoading,
+    INSInfiniteScrollBackgroundViewStateStopping,
 };
 
 @class INSInfiniteScrollBackgroundView;

INSPullToRefresh/INSInfiniteScrollBackgroundView.m

@@ -274,6 +274,8 @@ - (void)stopInfiniteScrollWithStoppingContentOffset:(BOOL)stopContentOffset {
 
     CGPoint offset = CGPointMake(self.scrollView.contentOffset.x, self.scrollView.contentOffset.y);
 
+    [self changeState:INSInfiniteScrollBackgroundViewStateStopping];
+
     __weak typeof(self)weakSelf = self;
     [self setScrollViewContentInset:contentInset animated:!stopContentOffset completion:^(BOOL finished) {