我可以在另一个视图控制器中使用具有相同位置的相同地图吗？

Question

在我的应用程序中，用户可以搜索位置并添加图钉。我想要一个下一个按钮转到另一个视图控制器并显示完全相同的地图，但版本较小。如何将完全相同的地图移动到另一个视图控制器？

import UIKit
import MapKit

protocol HandleMapSearch {
func dropPinZoomIn(placemark:MKPlacemark)
}

class ViewController: UIViewController {
let locationManager = CLLocationManager()
var resultSearchController:UISearchController? = nil
var selectedPin:MKPlacemark? = nil


@IBOutlet weak var mapView: MKMapView!

override func viewDidLoad() {


    super.viewDidLoad()
    locationManager.delegate = self
    locationManager.desiredAccuracy = kCLLocationAccuracyBest
    locationManager.requestWhenInUseAuthorization()
    locationManager.requestLocation()

    //
    let locationSearchTable = storyboard!.instantiateViewControllerWithIdentifier("LocationSearchTable") as! LocationSearchTable
    resultSearchController = UISearchController(searchResultsController: locationSearchTable)
    resultSearchController?.searchResultsUpdater = locationSearchTable
    //
    let searchBar = resultSearchController!.searchBar
    searchBar.sizeToFit()
    searchBar.placeholder = "Search for places"
    navigationItem.titleView = resultSearchController?.searchBar
    //
    resultSearchController?.hidesNavigationBarDuringPresentation = false
    resultSearchController?.dimsBackgroundDuringPresentation = true
    definesPresentationContext = true
    //
    locationSearchTable.mapView = mapView
    //
    locationSearchTable.handleMapSearchDelegate = self
    //
    let button   = UIButton(type: UIButtonType.System) as UIButton
    button.frame = CGRectMake(100, 100, 100, 50)
    button.backgroundColor = UIColor.greenColor()
    button.setTitle("Button", forState: UIControlState.Normal)
    button.addTarget(self, action: Selector("Action:"), forControlEvents: UIControlEvents.TouchUpInside)
    self.view.addSubview(button)

}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}



}

extension ViewController : CLLocationManagerDelegate {
func locationManager(manager: CLLocationManager, didChangeAuthorizationStatus status: CLAuthorizationStatus) {
    if status == .AuthorizedWhenInUse {
        locationManager.requestLocation()
    }
}

func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
    if let location = locations.first {
        let span = MKCoordinateSpanMake(0.05, 0.05)
        let region = MKCoordinateRegion(center: location.coordinate, span: span)
        mapView.setRegion(region, animated: true)
    }
}
func locationManager(manager: CLLocationManager, didFailWithError error: NSError) {
    print("error:: \(error)")
}
}

extension ViewController: HandleMapSearch {
func dropPinZoomIn(placemark:MKPlacemark){
    // cache the pin
    selectedPin = placemark
    // clear existing pins
    mapView.removeAnnotations(mapView.annotations)
    let annotation = MKPointAnnotation()
    annotation.coordinate = placemark.coordinate
    annotation.title = placemark.name
    if let city = placemark.locality,
        let state = placemark.administrativeArea {
        annotation.subtitle = "\(city) \(state)"
    }
    mapView.addAnnotation(annotation)
    let span = MKCoordinateSpanMake(0.05, 0.05)
    let region = MKCoordinateRegionMake(placemark.coordinate, span)
    mapView.setRegion(region, animated: true)

}
}
extension ViewController : MKMapViewDelegate {

func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? {

    if annotation is MKUserLocation {
        //return nil so map view draws "blue dot" for standard user location
        return nil
    }

    let reuseId = "pin"
    var pinView = mapView.dequeueReusableAnnotationViewWithIdentifier(reuseId) as? MKPinAnnotationView
    pinView = MKPinAnnotationView(annotation: annotation, reuseIdentifier: reuseId)
    pinView?.pinTintColor = UIColor.orangeColor()
    pinView?.canShowCallout = true
    pinView?.rightCalloutAccessoryView = UIButton(type: UIButtonType.DetailDisclosure) as UIButton
    return pinView
}
func mapView(mapView: MKMapView, annotationView: MKAnnotationView, calloutAccessoryControlTapped control: UIControl) {

    if control == annotationView.rightCalloutAccessoryView {
        print("Disclosure Pressed!")
    }
}



}

Answer 1

您可以在执行 segue 或推送新控制器时将 annotation 或 lat long 传递给另一个视图控制器。如果你正在使用 segue 那么你可以使用 prepare for segue 方法。

第二件事，你可以为 mapview 创建一个 custom class。并可以在其中放置一些属性，例如注释或经纬度，然后创建此 class 的对象并设置此属性因此根据该属性此 class return 地图视图（制作方法因此）。你可以在许多 viewcontroller 中使用 class 而不仅仅是两个。

根据评论更新：

参考this link了解如何推送新的视图控制器。并参考这个 storyboard segue tutorial。实际上它是概念，不可能在这里解释所有内容，如果您在代码中有一些错误，那么我可以在这里解决，但是要学习整个概念，您应该遵循不同的教程和注释。做研究。 google 你会发现很多链接。

希望这会有所帮助:)

我可以在另一个视图控制器中使用具有相同位置的相同地图吗？

Can i use the same map with the same location in another View Controller?

mapkit

ios

swift