如何在同一视图控制器中使用多个搜索控制器

Question

在我的应用程序中，我想使用多个(两个(搜索控制器进行GooglePlace自动完成，我已经实现了一个搜索控制器，它工作正常，但现在我不知道如何在同一视图控制器中实现另一个搜索控制器，请提供一些知识来实现它。

在这里，我给出了我实现单个搜索控制器的代码。

var resultsViewController: GMSAutocompleteResultsViewController?
var pickUpSearchController: UISearchController?
var dropSearchController: UISearchController?
let pickUpSearchBarBackView = UIView()
let dropSearchBarBackView = UIView()

override func viewDidLoad() {
    super.viewDidLoad()
    pickUpSearchBarFunction()
}
override func viewDidLayoutSubviews() {
    var pickUpSearchBarFrame = pickUpSearchController?.searchBar.frame
    pickUpSearchBarFrame?.size.width = (pickUpSearchController?.searchBar.frame.size.width)!
    pickUpSearchController?.searchBar.frame = pickUpSearchBarFrame!
}
func pickUpSearchBarFunction() {
    resultsViewController = GMSAutocompleteResultsViewController()
    resultsViewController?.delegate = self
    pickUpSearchController = UISearchController(searchResultsController: resultsViewController)
    pickUpSearchController?.searchResultsUpdater = resultsViewController
    if UIScreen.main.bounds.size.width == 320 {
        pickUpSearchBarBackView.frame = CGRect(x: 10, y: 75.0, width: 300.0, height: 50.0)
    }
    else if(UIScreen.main.bounds.size.width == 375)
    {
        pickUpSearchBarBackView.frame = CGRect(x: 10, y: 75.0, width: 355.0, height: 60.0)
    }
    else if(UIScreen.main.bounds.size.width == 414)
    {
        pickUpSearchBarBackView.frame = CGRect(x: 10, y: 75.0, width: 394.0, height: 60.0)
    }
    pickUpSearchBarBackView.addSubview((pickUpSearchController?.searchBar)!)
    //(pickUpSearchController?.searchBar)!.center = self.pickUpSearchBarBackView.center
    view.addSubview(pickUpSearchBarBackView)
    pickUpSearchController?.searchBar.sizeToFit()
    pickUpSearchController?.searchBar.barTintColor = UIColor.white
    pickUpSearchController?.hidesNavigationBarDuringPresentation = false
    definesPresentationContext = true
    navigationController?.navigationBar.isTranslucent = false
    pickUpSearchController?.hidesNavigationBarDuringPresentation = false
    self.extendedLayoutIncludesOpaqueBars = true
    self.edgesForExtendedLayout = .top
}

extension HomeViewController: GMSAutocompleteResultsViewControllerDelegate {
func resultsController(_ resultsController: GMSAutocompleteResultsViewController,
                       didAutocompleteWith place: GMSPlace) {
    pickUpSearchController?.isActive = false
    //strForLat = "(place.coordinate.latitude)"
    //strForLong = "(place.coordinate.longitude)"
    let coordinateSearch: CLLocationCoordinate2D? = place.coordinate
    print(coordinateSearch!.latitude)
    print(coordinateSearch!.longitude)
    strForLat = "(coordinateSearch!.latitude)"
    strForLong = "(coordinateSearch!.longitude)"
    globalCamera = GMSCameraPosition.camera(withLatitude: Double(strForLat)!, longitude: Double(strForLong)!, zoom: zoomLevel)
    self.googleMapsView.camera = globalCamera
    //let marker = GMSMarker()
    customerMarker.position = CLLocationCoordinate2DMake(Double(strForLat)!, Double(strForLong)!)
    customerMarker.title = place.name
    customerMarker.snippet = place.formattedAddress
    customerMarker.map = self.googleMapsView
    //globalMarker.icon = GMSMarker.markerImage(with: UIColor.blue)
    customerMarker.tracksViewChanges = true
    self.dismiss(animated: true, completion: nil) // dismiss after select place
    pickUpSearchController?.searchBar.text = place.formattedAddress
    print("Place name: (place.name)")
    print("Place address: (place.formattedAddress!)")
    print("Place attributions: (place.attributions)")
    //getLatLngForaddress(addressStr: (searchController?.searchBar.text)!)
    getLatandLngForPickUpaddress()
}
func resultsController(_ resultsController: GMSAutocompleteResultsViewController,
                       didFailAutocompleteWithError error: Error){
    print("Error: ", error.localizedDescription)
}
// Turn the network activity indicator on and off again.
func didRequestAutocompletePredictions(forResultsController resultsController: GMSAutocompleteResultsViewController) {
    UIApplication.shared.isNetworkActivityIndicatorVisible = true
}
func didUpdateAutocompletePredictions(forResultsController resultsController: GMSAutocompleteResultsViewController) {
    UIApplication.shared.isNetworkActivityIndicatorVisible = false
}
func wasCancelled(_ viewController: GMSAutocompleteViewController) {
    self.dismiss(animated: true, completion: nil) // when cancel search
}

}

Answer 1

您可以通过将结果控制器与特定于UISearchController的搜索结果控制器进行比较来处理它。

extension ViewController: GMSAutocompleteResultsViewControllerDelegate {
func resultsController(_ resultsController: GMSAutocompleteResultsViewController,
                       didAutocompleteWith place: GMSPlace) {
    if resultsController == sourceResultsViewController {
        // Do something with the selected place.
    } else if resultsController == destinationResultsViewController {
        // Do something with the selected place.
    }