Swift - 从地图注释中执行 Segue

Posted 2023-02-23

【中文标题】Swift - 从地图注释中执行 Segue

【英文标题】：Swift - Perform Segue from map annotation

【发布时间】：2015-10-10 12:11:51

【问题描述】：

我的地图上有 1 个图钉。我需要将注释的标题传递给另一个 UIView（在这种情况下是 ikinciEkran.swift）。但我做不到。

这是我的代码的 segue 部分，我不知道如何 segue 所选注释的标题。

我只粘贴了相关的部分代码。

class MapViewController: UIViewController, CLLocationManagerDelegate, MKMapViewDelegate 

@IBOutlet weak var mapView: MKMapView!
@IBOutlet weak var lbl_Name: UILabel!
@IBOutlet weak var lbl_Address: UILabel!
@IBOutlet weak var lbl_Phone: UILabel!

var LocationManager = CLLocationManager()

var i = 0

var annotation:MKAnnotation!

override func viewDidLoad() 
    super.viewDidLoad()

    LocationManager.delegate = self
    mapView.delegate = self

    LocationManager.desiredAccuracy = kCLLocationAccuracyNearestTenMeters
    LocationManager.requestWhenInUseAuthorization()
    LocationManager.startUpdatingLocation()

    let tekel1 = TekelClass(
        title: "tekel1",
        locationName: "Tekelİsim1",
        coordinate: CLLocationCoordinate2D(latitude: 40.9400, longitude: 29.300520))

    mapView.addAnnotation(tekel1)



 func mapView(mapView: MKMapView!, annotationView view: MKAnnotationView!,
    calloutAccessoryControlTapped control: UIControl!) 
        if control == view.rightCalloutAccessoryView 
            performSegueWithIdentifier("toTheMoon", sender: self)

        


override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) 
    if (segue.identifier == "toTheMoon" )
    
        var ikinciEkran = segue.destinationViewController as! DetailViewController

        ikinciEkran.tekelName = "how to segue title of the selected pin"

    

【参考方案1】：

你需要实现viewForAnnotation方法。

例子。

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

    if annotation is MKUserLocation 
        return nil
    

    let reuseId = "pin"

    var pinView = mapView.dequeueReusableAnnotationViewWithIdentifier(reuseId)
    if pinView == nil 
        pinView = MKPinAnnotationView(annotation: annotation, reuseIdentifier: reuseId)
        pinView?.canShowCallout = true

        var rightButton: AnyObject! = UIButton.buttonWithType(UIButtonType.DetailDisclosure)
        rightButton.titleForState(UIControlState.Normal)

        pinView!.rightCalloutAccessoryView = rightButton as! UIView
    
    else 
        pinView?.annotation = annotation
    

    return pinView

如果用户点击注释上的 (i) 按钮，calloutAccessoryControlTapped 将被调用。

参考。我的 MKMapView 示例代码 https://github.com/koogawa/MKMapViewSample

编辑

func mapView(mapView: MKMapView, annotationView view: MKAnnotationView, calloutAccessoryControlTapped control: UIControl) 
    if control == view.rightCalloutAccessoryView 
        performSegueWithIdentifier("toTheMoon", sender: view)
    


override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) 
    if (segue.identifier == "toTheMoon" )
    
        var ikinciEkran = segue.destinationViewController as! DetailViewController

        ikinciEkran.tekelName = (sender as! MKAnnotationView).annotation!.title

    

【讨论】：

亲爱的 Kosuke，如何分割 pin 的标题？在您的 github 示例中，没有任何传递的内容。