CODEWITHSUNDEEP
objective-cuitableviewsearchuisearchbarwords
Tomasz Szulc
Tomasz Szulc

Reputation: 4235

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

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?

Upvotes: 0

Views: 93

Answers (2)

Martin R
Martin R

Reputation: 539735

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.

Upvotes: 1

Tomasz Szulc
Tomasz Szulc

Reputation: 4235

Ok i've got something but isn't correctly in 100%.

for (NSDictionary *item in items) {

    NSRange range = [[item objectForKey:@"en"] rangeOfString : searchText];
    if (range.location != NSNotFound) {

        NSLog(@"Found");

        [tempSearch addObject:item];
    }
}

When i type "e" i've got "some", "something", "else" - i think correctly will be when only "else" will be returned.

Ok i've got it.

    if (range.location != NSNotFound && range.location == 0) {

Upvotes: 0

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