CLLocationManager忽略stopUpdatingLocation

Question

我在startUpdatingLocation()上呼叫CLLocationManager，而在didUpdateLocations方法中，当精确度小于100米时，我正在呼叫stopUpdatingLocation()：

func locationManager(manager: CLLocationManager!, didUpdateLocations locations: [AnyObject]!) {
    var lastLocation: CLLocation = locations.last! as! CLLocation
    var accuracy = lastLocation.horizontalAccuracy

    if (accuracy < 100) {
        locationCoordinate = lastLocation.coordinate
        locationManager.stopUpdatingLocation()
        getData()
    }
}

但是，除非我将didUpdateLocations设置为stopUpdatingLocations()，否则在调用locationManager后，nil方法仍会被调用一到两倍。显然，这也会多次调用我的方法getData()，这是我不想要的。如何locationManager停止而不将其设置为nil？

Answer 1

我也面临类似的问题。我通过将CLLocationManagerDelegate设置为nil

解决了这个问题

Answer 2

正如H先生所说，只是使用一个博尔。

func locationManager(manager: CLLocationManager!, didUpdateLocations locations: [AnyObject]!) {
    var lastLocation: CLLocation = locations.last! as! CLLocation
    var accuracy = lastLocation.horizontalAccuracy

    static bool flag = NO; //Or however this is done in Swift)

    if (accuracy < 100 && !flag) { //Check the flag in the condition

        locationCoordinate = lastLocation.coordinate
        locationManager.stopUpdatingLocation()
        getData()

        flag = YES; //Set flag to yes here

    }
}