gistfile1.m

//manually add a search bar
    UISearchBar *searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(0, 3, 320, 44)];
    searchBar.delegate = self;
    
    [searchBar setPlaceholder:NSLocalizedString(@"SearchNearbyPlaces", nil)];
    
    UISearchDisplayController *searchDisplayController = [[UISearchDisplayController alloc] initWithSearchBar:searchBar contentsController:self.navigationController];
    searchDisplayController.searchResultsDataSource = self;
    searchDisplayController.searchResultsDelegate = self;
    searchDisplayController.delegate = self;
    
    self.tableView.tableHeaderView = searchBar;