#import "TGMenuSheetCollectionView.h" @implementation TGMenuSheetCollectionView - (void)setContentOffset:(CGPoint)contentOffset { [super setContentOffset:contentOffset]; } - (void)setContentOffset:(CGPoint)contentOffset animated:(BOOL)animated { if (!self.isTracking && contentOffset.y < -self.contentInset.top) return; [super setContentOffset:contentOffset animated:animated]; } @end