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I've been trying to add simple Search functionality to a TableViewController in my app. I followed Ray Wenderlich's tutorial. I have a tableView with some data, I added the search bar + display controller in storyboard, and then I have this code:
#pragma mark - Table View
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"BreedCell" forIndexPath:indexPath];
//Create PetBreed Object and return corresponding breed from corresponding array
PetBreed *petBreed = nil;
if(tableView == self.searchDisplayController.searchResultsTableView)
petBreed = [_filteredBreedsArray objectAtIndex:indexPath.row];
else
petBreed = [_breedsArray objectAtIndex:indexPath.row];
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
cell.textLabel.text = petBreed.name;
return cell;
}
#pragma mark - Search
-(BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString {
[_filteredBreedsArray removeAllObjects];
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF.name contains[c] %@",searchString];
_filteredBreedsArray = [[_breedsArray filteredArrayUsingPredicate:predicate] mutableCopy];
return YES;
}
-(BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchScope:(NSInteger)searchOption {
// Tells the table data source to reload when scope bar selection changes
[_filteredBreedsArray removeAllObjects];
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF.name contains[c] %@",self.searchDisplayController.searchBar.text];
_filteredBreedsArray = [[_breedsArray filteredArrayUsingPredicate:predicate] mutableCopy];
return YES;
}