我有一个模拟坐标移动的 GPX。我不能让 CLCircularRegion 白白开火。我试图将代码放在任何地方。这是我正在使用的：
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)
我到处都放了这个。我把这个放进去：
viewDidLoad
viewWillAppear
viewDidAppear
mapViewDidFinishLoadingMap(mapView: MKMapView!
mapViewDidFinishRenderingMap(mapView: MKMapView!, fullyRendered: Bool)
locationManager(manager: CLLocationManager!, didUpdateLocations locations: [AnyObject]!)
这是我的 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工作didStartMonitoringRegion并将该地区的信息打印到日志中，但它不会触发。似乎没有任何效果，它让我发疯。这是我的完整程序。
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)
}
}