Question

我无法在mapView.Normal中使用Alamofire显示多个带有纬度和经度的JSON数据。静态数组在MapView中显示，但动态数据未在Map中显示。如何解决此问题？

import UIKit
import MapKit
import Alamofire
import SwiftyJSON
class NearbyViewController: UIViewController,MKMapViewDelegate,CLLocationManagerDelegate {

    @IBOutlet weak var mapview: MKMapView!
    @IBOutlet weak var name: UILabel!

    var schoolMap : [schools] = []
    var scholmap : schools?

    let locations = [
        ["title": "New York, NY",    "latitude": 40.713054, "longitude": -74.007228],
        ["title": "Los Angeles, CA", "latitude": 34.052238, "longitude": -118.243344],
        ["title": "Chicago, IL",     "latitude": 41.883229, "longitude": -87.632398]
    ]
    override func viewDidLoad() {
        super.viewDidLoad()
       getschoolMapJson()
        getmapSchool()


        self.view.addGestureRecognizer(self.revealViewController().panGestureRecognizer())

    }

    override  func viewWillAppear(_ animated: Bool) {
     mapview.reloadInputViews()
    }
    override func viewDidAppear(_ animated: Bool) {
       mapview.reloadInputViews()
    }

   func getmapSchool(){

        for locationn in schoolMap{
        let location = CLLocationCoordinate2DMake((locationn.latitude) , (locationn.longitude))
            print("lati",locationn.longitude)
        let span = MKCoordinateSpanMake(10.0, 10.0)
        let region = MKCoordinateRegionMake(location, span)
        mapview.setRegion(region, animated: true)
        let annotation = MKPointAnnotation()
        annotation.coordinate = location
        annotation.title = locationn.name
            print("namelati",locationn.name)
        mapview.addAnnotation(annotation)
        }
    }


    func getschoolMapJson(){
        if (schoolMap.count > 0){
            return
        }

        let url = NSURL(string: "http://www.myeducationhunt.com/api/v1/schools")
        var request = URLRequest(url: url! as URL)
        request.httpMethod = "GET"
        request.setValue("application/json", forHTTPHeaderField: "Content-Type")
        Alamofire.request(request).responseJSON(){ response in
            switch response.result{
            case.success(let data):
                print("success api",data)
                let myresponse = JSON(data)

                /*for i in 0..<self.myresponse.count{
                 let schools_data = schools(schoolJson:self.myresponse[i])
                 self.schooldata.append(schools_data)

                 }*/
                for school in myresponse.array!{
                    let schoolsObj = schools(schoolJson: school)
                    self.schoolMap.append(schoolsObj)
                    debugPrint(schoolsObj)
                }
//                self.mapview.reloadInputViews()
            case.failure(let error):
                print("Not Success",error)
            }

        }
    }
}

enter image description here

为什么我无法显示动态数据。这个问题怎么样？解决了吗？

Answer 1

使用以下代码替换您的代码：

try {
    Integer.parseInt(answer);
} catch (NumberFormatException e) {
    throw new InputMismatchException("Enter Numbers");
}

在for school in myresponse.array!{ let schoolsObj = schools(schoolJson: school) //Add Pin let location = CLLocationCoordinate2DMake((schoolsObj.latitude) , (schoolsObj.longitude)) let span = MKCoordinateSpanMake(10.0, 10.0) let region = MKCoordinateRegionMake(location, span) mapview.setRegion(region, animated: true) let annotation = MKPointAnnotation() annotation.coordinate = location annotation.title = locationn.name mapview.addAnnotation(annotation) self.schoolMap.append(schoolsObj) }

中重新宣传

希望这会起作用

在swift 3中使用Map中的多个JSON数据显示纬度和经度？

1 个答案: