Swift + CoreLocation 不工作

Question

我正在尝试使用 CLLocationManager 获取用户位置。由于某种原因 locationManager:didUpdateLocations 从未被调用。下面是 View Controller 的代码。

注意:我已将必要的 key 添加到 info.plist 并在模拟器中启用了位置服务。

控制台输出是:“允许的位置”

知道我做错了什么吗？

    import UIKit
    import CoreLocation

    class ViewController: UIViewController, CLLocationManagerDelegate {

        var locationManager:CLLocationManager = CLLocationManager()
        var location_seenError: Bool = false
        var location_fixAchieved: B

ool = false
    var location_status: NSString = "Not Started"

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        location_seenError = false;
        location_fixAchieved = false;
        locationManager.delegate = self
        locationManager.desiredAccuracy = kCLLocationAccuracyBest
        locationManager.requestAlwaysAuthorization()
    }

    // Location Manager Delegate stuff
    // If failed
    func locationManager(manager: CLLocationManager, didFailWithError error: NSError!) {
        locationManager.stopUpdatingLocation()
        NSLog("locationManager:didFailWithError")
        if (error) {
            if (location_seenError == false) {
                location_seenError = true
                NSLog("Location Error")
            }
        }
    }

    func locationManager(manager: CLLocationManager, didUpdateLocations locations: [AnyObject]!) {
        NSLog("locationManager:didUpdateLocations")
        if (location_fixAchieved == false) {
            location_fixAchieved = true
            var locationArray = locations as NSArray
            var locationObj = locationArray.lastObject as CLLocation
            var coord = locationObj.coordinate

            NSLog("lat: \(coord.latitude)")
            NSLog("lon: \(coord.longitude)")
        }
    }

    // authorization status
    func locationManager(manager: CLLocationManager,
        didChangeAuthorizationStatus status: CLAuthorizationStatus) {
            var shouldIAllow = false

            switch status {
            case CLAuthorizationStatus.Restricted:
                location_status = "Restricted Access to location"
            case CLAuthorizationStatus.Denied:
                location_status = "User denied access to location"
            case CLAuthorizationStatus.NotDetermined:
                location_status = "Status not determined"
            default:
                location_status = "Allowed to location Access"
                shouldIAllow = true
            }
            NSNotificationCenter.defaultCenter().postNotificationName("LabelHasbeenUpdated", object: nil)
            if (shouldIAllow == true) {
                NSLog("Location to Allowed")
                // Start location services
                manager.startMonitoringSignificantLocationChanges()
                locationManager.startMonitoringSignificantLocationChanges()
            } else {
                NSLog("Denied access: \(location_status)")
            }
    }
}

Answer 1

模拟器没有 GPS 功能。但是，您可以使用调试器窗口底部的 GPS 图标模拟 GPS 位置。选择其中一个位置后，您应该获得位置更新，因此应调用 locationmanager.didUpdateLocations。

您可以通过将带有 map 点的 GPX 文件添加到您的项目来将您自己的位置添加到列表中。