A UICollectionView which would wrap its content

WrapCollectionView.m

@interface WrapCollectionView : UICollectionView
@end

@implementation WrapCollectionView

- (void) layoutSubviews
{
    [super layoutSubviews];
    
    if (!CGSizeEqualToSize(self.bounds.size, [self intrinsicContentSize]))
    {
        [self invalidateIntrinsicContentSize];
    }
}

- (CGSize)intrinsicContentSize
{
    CGSize intrinsicContentSize = self.contentSize;
    
    return intrinsicContentSize;
}

@end