我一定在这里缺少明显的东西.....

作品:
从核心数据添加一堆MKPointAnnotations ...显示在地图上

不起作用:
轻按图钉时,尝试使打印语句出现。

我设置了MKMapView Delegate,并且没有实现AnnotationView,因为我希望在敲击引脚后立即进行查询。宁愿不显示上下文对话框。

缺少识别针脚的提示,我想念什么?

import UIKit
import MapKit
import Foundation
import CoreData

class MapViewController: UIViewController, MKMapViewDelegate {
    @IBOutlet weak var mapOutlet: MKMapView!

    var latitude = 100.0 as Double
    var longitude = 120.0 as Double

    var pins = [NSManagedObject]()

    func pullPins()    {
        let appDelegate = UIApplication.sharedApplication().delegate as! AppDelegate
        let managedContext = appDelegate.managedObjectContext

        let fetchRequest = NSFetchRequest(entityName: "Pin")

        do {
            let results = try managedContext.executeFetchRequest(fetchRequest)
            pins = results as! [NSManagedObject]

            for pin in pins {
                let pinLat = pin.valueForKey("latitude") as! Double
                let pinLon = pin.valueForKey("longitude") as! Double

                let pinCoordinate = CLLocationCoordinate2D(latitude: pinLat, longitude: pinLon)

                let annotation = MKPointAnnotation()
                annotation.coordinate = pinCoordinate

                self.mapOutlet.addAnnotation(annotation)
            }
        }
        catch let error as NSError {
            print("Could not fetch \(error), \(error.userInfo)")
        }
    }


    func mapView(mapView: MKMapView, didSelectAnnotationView view: MKAnnotationView) {
        print("Pin Tapped")
    }

    override func viewDidLoad() {
        super.viewDidLoad()

        pullPins()
    }
}

最佳答案

如果您没有收到地图视图委托消息,那是因为您尚未使自己成为地图视图的委托。例如:

self.mapOutlet.delegate = self

关于ios - Swift:MapKit-识别Pin Tap,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/38667845/

10-13 08:51