Using a Search Bar through an sqlite database - ios

Question

I am building an iPhone application loading data from SQLite database. Until now I have managed to deal with it as it should, but now i need to add a search bar on top to search through the database content dynamically and obtain the proper search results.
I am using Xcode 4.3.3 , and I am a newb in Xcoding.
I have seen almost every tutorial ever posted online and i need some help.
Anyone have any very specific tutorial or sample code that could help? It will be highly appreciated.

Answer 1

Everyone this is the most helpful link ever found
http://code-ninja.org/blog/2012/01/08/ios-quick-tip-filtering-a-uitableview-with-a-search-bar/

Answer 2

You could use an NSPredicate.
http://developer.apple.com/library/ios/#DOCUMENTATION/Cocoa/Reference/Foundation/Classes/NSPredicate_Class/Reference/NSPredicate.html
[NSPredicate predicateWithFormat:#"whatYouAreSearching LIKE %#", searchBar.text];
If you're using an NSFetchRequest, you can assign it a predicate using it's setPredicate method.

Answer 3

Your controller must implement UISearchBarDelegate protocol
then in init method, add this or similar
CGRect searchBarRect = CGRectMake(0, 0, self.view.bounds.size.width, 44);
_searchBar = [[UISearchBar alloc] initWithFrame:searchBarRect];
_searchBar.delegate = self;
after that, implement these three methods, I will post something that looks like mine implementations
- (void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar {
[searchBar setShowsCancelButton:YES animated:YES];
self.tableView.allowsSelection = NO;
self.tableView.scrollEnabled = NO;
}
- (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar {
searchBar.text=#"";
[searchBar setShowsCancelButton:NO animated:YES];
[searchBar resignFirstResponder];
self.tableView.allowsSelection = YES;
self.tableView.scrollEnabled = YES;
}
- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar {
[searchBar setShowsCancelButton:NO animated:YES];
[searchBar resignFirstResponder];
self.tableView.allowsSelection = YES;
self.tableView.scrollEnabled = YES;
/* fire method that does querying with searchBar.text as attribute */
[self some method:searchBar.text];
}