Question

So here’s how I do the search:

1. I have an array of Data and a mutable array of search results
2. I perform the search
3. I fill an array with the results of a search using a predicate with the filterdArrayUsingPredicate:

4. add that array to the mutable array of results via addObjectsFromArray: as such:

   - (void)filterContentForSearchText:(NSString*)searchText 
                                scope:(NSString*)scope
   {
       NSPredicate *resultPredicate = [NSPredicate 
                                       predicateWithFormat:@"SELF contains[cd] %@",
                                       searchText];
   
       NSArray *results = [self.allItems filteredArrayUsingPredicate:resultPredicate];
   
       NSMutableArray *myResults = [[NSMutableArray alloc] init];
       [myResults addObjectsFromArray:results];
   
       self.searchResults = myResults;
   
       [myResults release];
   
       NSLog(@"%@", self.searchResults);
   }
   

The problem I see is that I have to create a mutable array everytime a search is performed, which is whenever a “keyup” occurs. I was wondering if there was a better approach with this one.

Thanks in advance!

Answer 1

Step #4 is not makes sense. Assign filtered array directly but not thru myResults. In case of some internal logic you will need a copy of filtered results array you still can get it my calling copy method.