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iosiphoneuicollectionview

Scroll UICollectionView to section header view

The code below scrolls to the right cell in UICollectionView, but the section header view is hidden behind UINavigationBar in my case. I believe I should use scrollRectToVisible instead and my question is, what is the right way to calculate the CGRect (y position) when the numberOfRows in a given section is variable.

- (void)scrollToPricing:(NSUInteger)row {

    [self.collectionView scrollToItemAtIndexPath:
      [NSIndexPath indexPathForItem:0 
                          inSection:row] 
                   atScrollPosition:UICollectionViewScrollPositionTop 
                           animated:YES];
}
Solution

  • I think this may help you 

    UICollectionViewLayoutAttributes *attributes = [self.collectionView layoutAttributesForItemAtIndexPath:indexPath];

    Then you can access the location through attributes.frame