UICollectionView reloadData not functioning properly in iOS 7

Question

I\'ve been updating my apps to run on iOS 7 which is going smoothly for the most part. I have noticed in more than one app that the reloadData method of a

Answer 1

 dispatch_async(dispatch_get_main_queue(), ^{

            [collectionView reloadData];
            [collectionView layoutIfNeeded];
            [collectionView reloadData];


        });

it worked for me.