里面我ViewController's
类viewDidLoad
方法,我有:MKMapItem.forCurrentLocation()返回 “未知位置”
override func viewDidLoad() {
super.viewDidLoad()
requestAuthorization()
locationManager.delegate = self
print(MKMapItem.forCurrentLocation())
}
这里是requestAuthorization()
功能:
private func requestAuthorization(){
if CLLocationManager.authorizationStatus() == .notDetermined{
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.requestWhenInUseAuthorization()
}
else if CLLocationManager.authorizationStatus() == .denied{
//TODO
}
}
问题是,forCurrentLocation()
函数永远不会返回实际的用户位置返回MKMapItem的坐标是:(纬度:0,经度:0)。这是打印功能的结果。
MKMapItem:0x60000014e020 isCurrentLocation = 1; name =“未知位置”;
我在做什么错?
编辑:
我想用MKMapItem.forCurrentLocation()
是,我打算让用户在prepareForSegue
坐标的原因。我认为这比使用didUpdateLocations
委托方法更容易。看到代码:
if segue.identifier == "categories",
let destinationVC = segue.destination as? CategoriesGroupViewController{
if let cell = sender as? UICollectionViewCell{
let indexPath = categoriesCollectionView.indexPath(for: cell)
destinationVC.groupOfDestinations = destinationsByCategory[indexPath!.row]
// 0 is index for Near Me cell
if indexPath?.row == 0 {
destinationVC.groupOfDestinations = getNearMeDestinations()
}
}
private func getNearMeDestinations() -> GroupOfDestinations{
let userCoordinates = MKMapItem.forCurrentLocation().placemark.coordinate
let nearMeCircularRegion: CLCircularRegion = CLCircularRegion(center: userCoordinates, radius: 10000, identifier: "nearMe")
...
return nearMeDestinations
}
如果您在ViewController中有MKMapView,请使用print(mapView.userLocation.location?.coordinate)。 –