快速前进地理定位和访问地标经度和经度

Posted 2023-03-05

【中文标题】快速前进地理定位和访问地标经度和经度

【英文标题】：swift forward geolocating and accessing the placemark longitude and longitude

【发布时间】：2015-11-12 21:29:16

【问题描述】：

我使用前向地理编码来获取我的活动的二维坐标。现在我试图获取事件地址的经度和纬度。我设法创建了一个包含坐标的地标，但我不知道如何将其从坐标更改为经度或纬度

有什么想法吗？

if let objects = objects 
    for object in objects 

        self.geocoder = CLGeocoder()

        //get address from object
        let COAddress = object.objectForKey("Address")as! String
        let COCity = object.objectForKey("City")as! String
        let COState = object.objectForKey("State")as! String
        let COZipCode = object.objectForKey("ZipCode")as! String
        let combinedAddress = "\(COAddress) \(COCity) \(COState) \(COZipCode)" //all parts of address
        print(combinedAddress)

        //make address a location

        self.geocoder.geocodeAddressString(combinedAddress, completionHandler: (placemarks, error) -> Void in

            if(error != nil)
            

                print("Error", error)
            

            else if let placemark = placemarks?[0]
            

                let placemark:CLPlacemark = placemarks![0]
                var coordinates:CLLocationCoordinate2D = placemark.location!.coordinate
                print("i got here", coordinates)

            
        )

       let userLatitude = self.locationManager.location?.coordinate.latitude
       let userLongitude = self.locationManager.location?.coordinate.longitude
       let userLocation = CLLocation(latitude: userLatitude!, longitude: userLongitude!)

       // event location - THE ERROR IS BELOW
       let eventLatitude = placemarks.location?.cordinate.latitude
       let eventLongitude = placemarks.location?.coordinate.longitude
       let eventLocation = CLLocation(latitude: eventLatitude!, longitude: eventLongitude!)

       //Measuring my distance to my buddy's (in km)

       let distance = userLocation.distanceFromLocation(eventLocation) / 1000

         //Display the result in km
         print("The distance to event is ", distance)

         if (distance < 100) 

             print("yay")
         
     

【参考方案1】：

// event location - THE ERROR IS BELOW
       let eventLatitude = placemarks.location?.cordinate.latitude
       let eventLongitude = placemarks.location?.coordinate.longitude
       let eventLocation = CLLocation(latitude: eventLatitude!, longitude: eventLongitude!)

相信你需要访问placemarks.first.location或placemarks[0].location