Swift Using NSFetchedResultsController and UISearchBarDelegate

Question

I am looking for a decent solution to this problem. I am wanting to implement some simple search functionality on a TableView that I have.

All the examples I have found

Answer 1

From your code, I assume you want to use the same table view to display the results. So you just need to update your FRC with a new filter based on the search term.

Store the search term in a variable. In the FRC factory function, include the predicate, something like this:

request.predicate = searchText?.characters.count > 0 ?
 NSPredicate(format:"title contains[cd] %@", searchText!) : nil

When the text changes, reset the FRC and reload.

fetchedResultsController = nil
tableView.reloadData()

If you have additional filters, such as scope buttons, add additional terms to the predicate.