Question

在尝试获取位置时，它只是我还是iOS模拟器很慢？有时需要多次调用才能获取信息。

例如，我将位置设置为纽约，更新我的标签以显示“纽约，纽约”，将位置更改为香港，并尝试再次更新我的标签，但需要2到5个方法调用在标签变为香港之前。

我的位置代码效率低下还是这些请求的iOS模拟器错误？

@IBAction func findMyLocation(sender: AnyObject) {
    // set location manager, set accuracy and start updating
    locationManager.delegate = self
    locationManager.desiredAccuracy = kCLLocationAccuracyBest
    locationManager.requestWhenInUseAuthorization()
    locationManager.startUpdatingLocation()
}

func locationManager(manager: CLLocationManager!, didUpdateLocations locations: [AnyObject]!) {
    CLGeocoder().reverseGeocodeLocation(manager.location) {
        (let placemarks, let error) in
        if error != nil {
            println("Reverse geocoder failed with error" + error.localizedDescription)
            return
        }
        if placemarks.count > 0 && placemarks != nil {
            let placemark = placemarks[0] as! CLPlacemark
            let locationsArray = locations as NSArray
            self.displayLocationInfo(placemark, locations: locationsArray)
        }
    }
}

func displayLocationInfo(placemark: CLPlacemark, locations: NSArray) {
    // stop updating to save power
    locationManager.stopUpdatingLocation()

    cityLabel?.text = placemark.locality
    zipcodeLabel?.text = placemark.postalCode
    stateLabel?.text = placemark.administrativeArea
    countryLabel?.text = placemark.country

    if let locationObj = locations.lastObject as? CLLocation {
        let coordinates = locationObj.coordinate
        coordinatesLabel?.text = "\(coordinates.latitude),\(coordinates.longitude)"
    }
}

如果有更好的方法来编写我的代码，请发布！我是iOS开发的新手！

XCode iOS模拟器获取位置错误？

0 个答案: