How to deal with searching piece of word in word with UISearchBar and UITableView?

Question

I'm new with UISearchBar and i've got some code for searching words.

- (void)searchTableView
{
NSLog(@"Searching...");
NSString *searchText = searchBar.text;

NSMutableArray *tempSearch = [[NSMutableArray alloc] init];

for (NSDictionary *item in items) {

    if ([[item objectForKey:@"en"] isEqualToString:searchText]) {
        NSLog(@"Found");

        [tempSearch addObject:item];
    }
}

searchArray = [tempSearch copy];
}

It works but problem is it works only for complete word (e.g. If in textLabel in UITableViewCell is text "something" and i type "something" in UISearchBar then i've got this row returned, but when i type "some" i've got rows when complete word is "some", "something" isn't showed). How can i search text correclty with my method?

Answer 1

Using NSPredicate you can simplify your search a bit:

NSPredicate *predicate = [NSPredicate predicateWithFormat:@"en BEGINSWITH %@", searchText];
NSArray *tempSearch = [items filteredArrayUsingPredicate:predicate];

If you want case-insensitive search, replace BEGINSWITH by BEGINSWITH[c].

See Using Predicates in the "Predicate Programming Guide" for more information.