Question

In order to understand how UISearchDisplayController works i’ve written the following code in viewDidLoad method:

UISearchBar * searchBar = [[[UISearchBar alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 320.0f, 40.0f)] autorelease];
searchBar.delegate = self;
searchBar.showsCancelButton = YES;

_searchController = [[UISearchDisplayController alloc] initWithSearchBar:searchBar contentsController:self];
_searchController.delegate = self;
_searchController.searchResultsDataSource = self;
_searchController.searchResultsDelegate = self;

[_searchController setActive:YES animated:YES];
[_searchController.searchBar becomeFirstResponder];

But when i run my code the UISearchBar doesn’t being shown as you can see in the image.

Answer 1

You create UISearchBarcontroller its good but not added in uiviewcontroller. So You add UISearchBarcontroller in uiviewcontroller.

coding:

[self.view addsubview:_searchController];