Swift：LocationManager在不同的类中

我正在尝试创建一个LOCATIOnManager类来处理所有的GPS数据.我需要多个视图控制器中的GPS数据.问题是函数被调用但我没有得到坐标.我在状态栏中看到了GPS图标,但几秒后就消失了.

GPSTrackeRMANager.swift

    class GPSTrackingManager: NSObject,CLLOCATIOnManagerDelegate {

    var LOCATIOnManager: CLLOCATIOnManager!
    var seenError : Bool = false

    func startTracking() {

        LOCATIOnManager = CLLOCATIOnManager()
        LOCATIOnManager.delegate = self
        LOCATIOnManager.desiredAccuracy = kCLLOCATIOnAccuracyBest
        LOCATIOnManager.requestAlwaysAuthorization()
        LOCATIOnManager.startupdatingLOCATIOn() 
    }

    func LOCATIOnManager(manager: CLLOCATIOnManager!,didFailWithError error: NSError!) {
        LOCATIOnManager.stopupdatingLOCATIOn()
        if ((error) != nil) {
            if (seenError == falsE) {
                seenError = true
                print(error)
            }
        }
    }

    func LOCATIOnManager(manager:CLLOCATIOnManager,didupdateLOCATIOns LOCATIOns:[AnyObject]) {
        //println("LOCATIOns = \(LOCATIOnManager)")
        var latValue = LOCATIOnManager.LOCATIOn.coordinate.latitude
        var lonValue = LOCATIOnManager.LOCATIOn.coordinate.longitude

        println(latvalue)
        println(lonvalue)

    }
}

我如何在VC中的ViewDidLoad中调用它：

var tracking = GPSTrackingManager()
tracking.startTracking()

class ViewController: UIViewController {
    var tracking = GPSTrackingManager()

    override func viewDidLoad() {
        super.viewDidLoad()
        // ...
        tracking.startTracking()
    }
}