我极度沮丧，我似乎无法弄清楚为什么我的UISearchController search bar不会进入navigation bar处于活动状态时UISearchController。我在这个问题上花了一个多星期的时间，我似乎无法得到它。此外，我希望我的搜索结果显示在同一视图中，即搜索位置所在的视图。我已将searchResultsController设为零。我是否仍需要创建UITableView对象来管理搜索结果？当我计划在同一个视图控制器中显示我的搜索结果时，我不知道为什么会有UITableView对象管理它们的原因？这是我的代码，如果你能够帮我解决这个问题，我将是最快乐的人。先感谢您！
import UIKit
import MapKit
import CoreLocation
class ViewController: UIViewController, MKMapViewDelegate, CLLocationManagerDelegate, UISearchBarDelegate, UISearchControllerDelegate, UITableViewDelegate, UISearchResultsUpdating, UITableViewDataSource, UINavigationBarDelegate {
// Map
@IBOutlet weak var mapView: MKMapView!
let locationManager = CLLocationManager()
// Search
var searchController = UISearchController()
// Data model for table view
var results = [MKMapItem]()
var filteredResults = [MKMapItem]()
@IBOutlet weak var navigationBar: UINavigationBar!
// Search results controller is the table view that will display the search results
var resultsTableController = UITableViewController(style: UITableViewStyle.Plain)
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
// Call to the setupMapView method
self.setupMapView()
// Call to the setupLocationManager method
self.setupLocationManager()
self.resultsTableController.tableView.registerClass(UITableViewCell.self, forCellReuseIdentifier: "CellID")
self.setupSearchController()
self.setupSearchBar()
}
// MARK: Initialization methods
func setupSearchController() {
// UITableViewController's tableViews data source
resultsTableController.tableView.dataSource = self
// UITableView's delegate
resultsTableController.tableView.delegate = self
resultsTableController.automaticallyAdjustsScrollViewInsets = true
// Initialize our search controller with the UITableViewController
self.searchController = UISearchController(searchResultsController: nil)
searchController.searchResultsUpdater = self
// Search controller and search bar delegate
self.searchController.delegate = self
self.searchController.searchBar.delegate = self
// Placeholder text for the search bar before it is clicked
self.searchController.searchBar.placeholder = "Country, City, Address"
// The navigation will be hidden when the search is started
self.searchController.hidesNavigationBarDuringPresentation = false
self.searchController.searchBar.sizeToFit()
self.definesPresentationContext = true
self.resultsTableController.tableView.tableHeaderView = self.searchController.searchBar
}
func setupSearchBar() {
// Set search bar position and dimensions
var searchBarFrame: CGRect = self.searchController.searchBar.frame
var viewFrame = self.view.frame
self.searchController.searchBar.frame = CGRectMake(searchBarFrame.origin.x, searchBarFrame.origin.y + 64,viewFrame.size.width, 44)
// Add search controller's search bar to our view and bring it to forefront
self.view.addSubview(self.searchController.searchBar)
//self.view.bringSubviewToFront(self.searchController.searchBar)
}
// MARK: UISearchControllerDelegate
func willPresentSearchController(searchController: UISearchController) {
// Set table view position and dimensions
var tableViewFrame: CGRect = self.resultsTableController.tableView.frame
var viewFrame = self.view.frame
var searchTableViewRect = CGRectMake(tableViewFrame.origin.x, tableViewFrame.origin.y, viewFrame.width, viewFrame.height)
self.resultsTableController.tableView.frameForAlignmentRect(searchTableViewRect)
self.mapView.removeAnnotations(self.mapView.annotations)
}
func willDismissSearchController(searchController: UISearchController) {
}