CLCircularRegion didEnterRegion不起作用

Question

我有一個GPX，可以模擬到坐標的運動。 我無法讓CLCircularRegion一無所獲。 我試圖將代碼放到任何地方。 這是我正在使用的：

var center: CLLocationCoordinate2D = CLLocationCoordinate2DMake(37.33171100, -122.03018400)
var radius: CLLocationDistance = CLLocationDistance(300)
var identifier: String = "Destination"
let region = CLCircularRegion(center: center, radius: radius, identifier: identifier)
manager!.startMonitoringForRegion(region)

我已經把它放在任何地方。 我把它放在：

viewDidLoad 
viewWillAppear
viewDidAppear
mapViewDidFinishLoadingMap(mapView: MKMapView!
mapViewDidFinishRenderingMap(mapView: MKMapView!, fullyRendered: Bool)
locationManager(manager: CLLocationManager!, didUpdateLocations locations: [AnyObject]!)

這是我的GPX文件：

<?xml version="1.0"?>
   <gpx version="1.1" creator="Xcode">
      <wpt lat="37.331711" lon="-122.030184">
               <name>Apple</name>
      </wpt>
      <wpt lat="37.422455" lon="-122.084306">
              <name>Google</name>
      </wpt>
</gpx>

Println在Println工作， didStartMonitoringRegion該區域的信息打印到日志中，但不會觸發。 似乎什么都沒有起作用，它使我發瘋。 這是我的完整程序。

import UIKit
import CoreLocation
import MapKit

class ViewController: UIViewController, CLLocationManagerDelegate, MKMapViewDelegate {

var mapView: MKMapView?
var manager: CLLocationManager?

override func viewDidLoad() {
    super.viewDidLoad()
    mapView = MKMapView(frame: CGRectMake(0.0, 0.0, view.frame.size.width, view.frame.size.height))
    self.mapView!.delegate = self
    mapView!.showsUserLocation = true
    view.addSubview(mapView!)   
   }

func locationManager(manager: CLLocationManager!, didEnterRegion region: CLRegion!) {
    println("Entered")
   }

func locationManager(manager: CLLocationManager!, didStartMonitoringForRegion region: CLRegion!) {
    println("Monitoring")
    println(region)
}

func mapViewDidFinishLoadingMap(mapView: MKMapView!) {
    manager = CLLocationManager()
    manager!.delegate = self
    manager!.desiredAccuracy = kCLLocationAccuracyBest
    manager!.startUpdatingLocation()

    var center: CLLocationCoordinate2D = CLLocationCoordinate2DMake(37.33171100, -122.03018400)
    var radius: CLLocationDistance = CLLocationDistance(300)
    var identifier: String = "Destination"
    let region = CLCircularRegion(center: center, radius: radius, identifier: identifier)
    manager!.startMonitoringForRegion(region)
   }
}

Answer 1

你一定是在跟我開玩笑。 這是因為我在info.plist使用了NSLocationWhenInUseUsageDescription而不是NSLocationAlwaysUsageDescription