updatesearchresultsforsearchcontroller未调用
有谁知道为什么它不被称为？ 谢谢。 我想我正确设置了委托。
class LocationSearchController: UIViewController, UISearchResultsUpdating, UINavigationBarDelegate, UISearchControllerDelegate { let navigationBar = UINavigationBar(frame: CGRect(x: 0, y: 0, width: UIScreen.mainScreen().bounds.width, height: 44)) var locationSearchController: UISearchController! override func viewDidLoad() { super.viewDidLoad() locationSearchController = UISearchController(searchResultsController: nil) self.locationSearchController.loadViewIfNeeded() //sets up search controller self.locationSearchController.searchResultsUpdater = self self.locationSearchController.delegate = self definesPresentationContext = true //self.videoSearchController.searchBar.delegate = self //sets up nav bar navigationBar.backgroundColor = UIColor.blackColor() navigationBar.delegate = self navigationItem.titleView = locationSearchController.searchBar //leftButton.title = "Left" //navigationItem.leftBarButtonItem = leftButton navigationBar.items = [navigationItem] self.view.addSubview(navigationBar) } override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() } func updateSearchResultsForSearchController(searchController: UISearchController) { print("search results updated 2") } } 任何想法将不胜感激。 我搜索了一会儿，但我没有找到有关此问题的答案。
我遇到了与iOS8相同的问题。 这是一种解决方法，但它会解决这个问题。
- 让LocationSearchController实现UISearchBarDelegate
-
在viewDidLoad中添加以下行：
locationSearchController.searchBar.delegate = self -
添加此方法：
func searchBar(searchBar: UISearchBar, textDidChange searchText: String) { updateSearchResultsForSearchController(locationSearchController) }