How to filter UICollectionView and keep keyboard up?

Question

I\'ve added a UISearchBar to a UICollectionView and in the delegate searchBar:textDidChange: filter my model and call [collectio

Answer 1

If you've added the UISearchBar as a header to the UICollectionView the reloadData call will "refresh" the header by removing and re-adding the UISearchBar causing it to lose firstResponder.

You can either add your UISearchBar in another way, not using header, or override reloadData, check if the search bar is currently firstResponder, and if so after calling super, do:

// If we've lost first-responder, restore it.
if ((wasFirstResponder) && (![self.searchBar isFirstResponder])) {
    [self.searchBar becomeFirstResponder];
}