user2290194 user2290194 - 4 years ago 213
iOS Question

Show UISearchController's SearchResultsController on SearchBar Tap

I am using UISearchController not UISearchDisplayController, and I want to show SearchResultController on SearchBar Tap right away. Right now it's showing like this (when I tap on the search bar):

Answer Source

When results are empty, UISearchController's viewController is still hidden. That's why we have to fiddle our way around using UISearchControllerDelegate's willPresentSearchController:

After initializing self.searchController make your ViewController conform to `UISearchControllerDelegate:

self.searchController.delegate = self;

Implement willPresentSearchController: in your ViewController:

- (void)willPresentSearchController:(UISearchController *)searchController
    dispatch_async(dispatch_get_main_queue(), ^{
        searchController.searchResultsController.view.hidden = NO;

The async dispatch is necessary, because otherwise it will be overridden by the internal behavior. You could go fancy here and use an animation to have the table view fade in.

Additionally, implement didPresentSearchController: for sanity:

- (void)didPresentSearchController:(UISearchController *)searchController
    searchController.searchResultsController.view.hidden = NO;
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