[英]Swift how to segue views by tapping a right accessory callout button on a map annotation
我對快速進行面向對象的編程非常陌生,我試圖通過點擊長按掉下的圖釘注釋中的右側輔助標注按鈕,將視圖從包含地圖的視圖切換到另一個視圖。 在情節提要中,我在兩個視圖之間創建了一個序列,並為序列分配了標識符mapseg。 不幸的是,在嘗試了所有我可以通過Google找到的東西之后,當我點擊正確的附件標注按鈕並且不知道為什么時,我就無法進行選擇。該應用程序本身是一個帶有三個選項卡的選項卡式應用程序。 第二個選項卡的視圖是包含地圖的視圖。 另外,我不知道這是否與它有關,但是我嘗試從中進行轉換的視圖嵌入在導航控制器中。 這是我要從中轉換視圖的代碼。
import UIKit
import MapKit
class SecondViewController: UIViewController, MKMapViewDelegate {
@IBOutlet weak var MapView: MKMapView!
override func viewDidLoad() {
super.viewDidLoad()
self.MapView.delegate = self
// Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? {
let reuseID = "pin"
var pinView = mapView.dequeueReusableAnnotationViewWithIdentifier(reuseID) as? MKPinAnnotationView
pinView = MKPinAnnotationView(annotation: annotation, reuseIdentifier: reuseID)
pinView!.canShowCallout = true
pinView!.animatesDrop = true
pinView!.enabled=true
let btn = UIButton(type: .DetailDisclosure)
btn.titleForState(UIControlState.Normal)
pinView!.rightCalloutAccessoryView = btn as UIView
return pinView
}
@IBAction func dropPin(sender: UILongPressGestureRecognizer) {
if sender.state == UIGestureRecognizerState.Began {
let location = sender.locationInView(self.MapView)
let locCoord = self.MapView.convertPoint(location, toCoordinateFromView: self.MapView)
let annotation = MKPointAnnotation()
annotation.coordinate = locCoord
annotation.title = "City Name"
annotation.subtitle = ""
self.MapView.removeAnnotations(MapView.annotations)
self.MapView.addAnnotation(annotation)
self.MapView.selectAnnotation(annotation, animated: true)
}
func mapView(mapView: MKMapView, annotationView view: MKAnnotationView, calloutAccessoryControlTapped control: UIControl) {
if control == view.rightCalloutAccessoryView {
self.performSegueWithIdentifier("mapseg", sender: self)
}
}
}
}
我認為您需要重寫prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?)
方法。 並檢查是否工作
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