Implementing a search suggestions for iPhone app

Question

I have a list of foods (e.g. apple, pear, banana, etc.). Suppose a user type "appl", I want my app to return the top 5 (the number 5 is arbitrary) closest results within this list. What is a good algorithm/data structure for implementing this?

score 0 · Accepted Answer · answered Mar 05 '12 at 09:51

You should get all the data from the database and store it in an array and then if you are using search bar -

(void)searchBarSearchButtonClicked:(UISearchBar *)searchBar;

use this method and apply logic to search something like

for(NSString *curString in backUpArayForAllFiles) {
            flagCountForSearch++;
            if ([curString rangeOfString:substring options:NSCaseInsensitiveSearch].location == NSNotFound) 
            {
    }
    else 
    {
    }

score 0 · Answer 2 · edited May 23 '17 at 12:12

0

The usual way is using a UISearchDisplayController to implement the UISearchDisplayDelegate protocol - and use NSPredicate (NSFetchResultsController) to filter through the table(s). I think this may help : NSFetchedResultsController with search

edited May 23 '17 at 12:12

Community

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answered Mar 05 '12 at 09:58

hburde

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Implementing a search suggestions for iPhone app

2 Answers2