uicollectionview select an item immediately after reloaddata?

Question

After calling -[UICollectionView reloadData] it takes some time for cells to be displayed, so selecting an item immediately after calling reloadData do

Answer 1

I handled it on the willDisplayCell colelctionView delegate. The idea: A temp variable is needed to specify the initial scrolling has performed already or not (scrollIsRequired). When the last visible cell will display, than we can scroll to the required cell and set this variable to avoid scrolling again.

- (void)collectionView:(UICollectionView *)collectionView willDisplayCell:(UICollectionViewCell *)cell forItemAtIndexPath:(NSIndexPath *)indexPath{

    //Perform any configuration

    if (CGRectGetMaxX(collectionView.frame) <= CGRectGetMaxX(cell.frame)) {
        // Last visible cell
        if (self.scrollIsRequired) {
            [self.collectionView selectItemAtIndexPath:[NSIndexPath indexPathForItem:self.initiallySelectedRepresentativeVerse inSection:0] animated:YES scrollPosition:UICollectionViewScrollPositionLeft];
            self.scrollIsRequired = NO;
        }
    }
}

It has worked for me like a charm.