我试图实现locationManager方法和let locationManager = CLLocation()变量在代码中的任何地方都没有被识别。当我添加didupdatlocations和didFailWithError方法时,错误就出现了。我试图从用户获得当前位置作为视图加载。如果没有上面提到的方法,应用程序会在centerMapOnLocation方法上中断。
下面是我的代码:import Foundation
import UIKit
import Firebase
import FirebaseDatabase
import CoreLocation
import MapKit
class MainViewController: UIViewController, CLLocationManagerDelegate{
var ref: FIRDatabaseReference!
var refHandle: UInt!
let locationManager: CLLocationManager = CLLocationManager()
let regionRadius: CLLocationDistance = 1000
var currentLocation: CLLocation!
let geoCoder = CLGeocoder()
var placemark: CLPlacemark?
@IBOutlet weak var mapView: MKMapView!
@IBOutlet weak var userEmailLabel: UILabel!
@IBOutlet weak var pickUpAddress: UITextField!
override func viewDidLoad() {
ref = FIRDatabase.database().reference()
////
locationManager.delegate = self
locationManager.requestLocation()
print(locationManager.requestLocation())
////
////
refHandle = ref.observeEventType(FIRDataEventType.Value, withBlock: { (snapshot) in
let dataDict = snapshot.value as! [String: AnyObject]
print((dataDict))
})
let userID: String = FIRAuth.auth()!.currentUser!.uid
ref.child("users").child(userID).observeSingleEventOfType(.Value, withBlock: { (snapshot) in
let userEmail = snapshot.value!["email"] as! String
self.userEmailLabel.text = userEmail
})
////
////
centerMapOnLocation()
super.viewDidLoad()
////
}
func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]){
print("locations: (locations)")
}
func locationManager(manager: CLLocationManager, didFailWithError error: NSError) {
print("error: (error)")
}
}
func locationManager(manager: CLLocationManager!, didChangeAuthorizationStatus status: CLAuthorizationStatus) {
if status != CLAuthorizationStatus.Denied{
locationManager.startUpdatingLocation()
}
}
func centerMapOnLocation() {
currentLocation = CLLocation.init(latitude: (locationManager.location?.coordinate.latitude)!, longitude: (locationManager.location?.coordinate.longitude)!)
let coordinateRegion = MKCoordinateRegionMakeWithDistance(locationManager.location!.coordinate, regionRadius * 2.0, regionRadius * 2.0)
mapView.setRegion(coordinateRegion, animated: true)
}
func translateLocation() {
geoCoder.reverseGeocodeLocation(currentLocation, completionHandler: { placemarks, error in
if error == nil && placemarks!.count > 0 {
self.placemark = placemarks![0] as CLPlacemark
self.pickUpAddress.text = self.stringFromPlacemark(self.placemark!)
}
})
}
func stringFromPlacemark(placemark: CLPlacemark) -> String { // 1
var line1 = ""
if let s = placemark.subThoroughfare {
line1 += s + " "
}
if let s = placemark.thoroughfare {
line1 += s
}
var line2 = ""
if let s = placemark.locality {
line2 += s + " "
}
if let s = placemark.administrativeArea {
line2 += s + " "
}
if let s = placemark.postalCode {
line2 += s }
return line1 + "n" + line2
}
@IBAction func pickCurrentLocation(sender: AnyObject) {
translateLocation()
}
@IBAction func signOutButton(sender: AnyObject) {
try! FIRAuth.auth()!.signOut()
if let storyboard = self.storyboard {
let viewController = storyboard.instantiateViewControllerWithIdentifier("LoginViewController")
self.presentViewController(viewController, animated: false, completion: nil)
}
}
}
一段时间后我还没有找到答案。我们会很感激你的帮助。
谢谢。
删除第75行某处的顶级右括号,一切都会好起来,它为我构建,问题是它将这些函数视为全局的