iOS Search Results Order

Question

I have a UISearchBar that searches a table of data. When a search is typed in, the results are displayed in an order like so:

Starts typing \'ch...\' 1. Ache 2. Che

Answer 1

You have to give the search option as NSAnchoredSearch

NSRange searchRange = [sortedString rangeOfString:searchText options:NSAnchoredSearch];

Some of the search method listed below

NSCaseInsensitiveSearch

NSLiteralSearch

NSBackwardsSearch

NSAnchoredSearch

NSNumericSearch

NSDiacriticInsensitiveSearch

NSWidthInsensitiveSearch

NSForcedOrderingSearch

NSRegularExpressionSearch

Eg:

- (void)search {

    NSString *searchText = [searchBar.text lowercaseString];


    for (int index = 0; index < [availableCollectionArray count]; index++) {

        NSArray *tempArray = [availableCollectionArray objectAtIndex:index];

        for (int tempIndex = 0; tempIndex < [tempArray count] ; tempIndex++) {

            NSString *sortedString = [tempArray objectAtIndex:tempIndex];

            NSRange searchRange = [sortedString rangeOfString:searchText options:NSAnchoredSearch];

            if (searchRange.length > 0)
            {
                [sortedArray addObject: sortedString];  //add the string which starts from searchBar.text
            }       

        }   

    }

}