ios Swift - 试图获取当前位置
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Swift - Trying to get current location
提问by user979331
I am trying to get the long and lat of my users locations, I have done the following:
我正在尝试获取用户位置的经纬度，我已完成以下操作：
imported Core Location
进口核心位置
import CoreLocation
Add Core Location Delegate
添加核心位置委托
class ViewController: UIViewController, CLLocationManagerDelegate, AVCaptureMetadataOutputObjectsDelegate, DTDeviceDelegate {
defined this variable:
定义了这个变量：
var locationManager: CLLocationManager!
and then added this method:
然后添加了这个方法：
func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
let userLocation:CLLocation = locations[0]
let long = userLocation.coordinate.longitude;
let lat = userLocation.coordinate.latitude;
print(long, lat)
//Do What ever you want with it
}
but the location does not get printed, my method does not even get it.
但是位置没有打印出来，我的方法甚至没有得到它。
I add the items to use Core Location to my plist and the app ask me to use the location services when I first run it. But now location is getting printed....what am I doing wrong?
我将使用 Core Location 的项目添加到我的 plist 中，当我第一次运行该应用程序时，它会要求我使用定位服务。但是现在位置正在打印....我做错了什么？
回答by Khuong
Maybe you forgot to set value for the delegate
也许你忘记设置值 delegate
In your viewDidLoad()add this:
在你viewDidLoad()添加这个：
if CLLocationManager.locationServicesEnabled() {
locationManager.requestAlwaysAuthorization()
locationManager.requestWhenInUseAuthorization()
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.startUpdatingLocation()
mapView.showsUserLocation = true
}
回答by Iyyappan Ravi
Use this Code,
使用此代码，
declare locationManager
声明位置管理器
var locationManager = CLLocationManager()
Set the Delegate in viewDidLoad, shown below code,
在viewDidLoad中设置Delegate，如下代码所示，
override func viewDidLoad() {
super.viewDidLoad()
locationManager.delegate = self
if CLLocationManager.authorizationStatus() == .NotDetermined {
self. locationManager.requestWhenInUseAuthorization()
}
locationManager.distanceFilter = kCLDistanceFilterNone
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.startUpdatingLocation()
}
回答by Jigar Tarsariya
Add this in viewdidload,
在viewdidload中添加这个，
if (CLLocationManager.locationServicesEnabled())
{
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyBest
if ((UIDevice.currentDevice().systemVersion as NSString).floatValue >= 8)
{
locationManager.requestWhenInUseAuthorization()
}
locationManager.startUpdatingLocation()
}
else
{
#if debug
println("Location services are not enabled");
#endif
}
Then add this two delegate method to get location,
然后添加这两个委托方法来获取位置，
func locationManager(manager: CLLocationManager!, didFailWithError error: NSError!)
{
locationManager.stopUpdatingLocation()
if ((error) != nil)
{
print(error)
}
}
func locationManager(manager: CLLocationManager!, didUpdateLocations locations: [AnyObject]!)
{
var locationArray = locations as NSArray
var locationObj = locationArray.lastObject as! CLLocation
var coord = locationObj.coordinate
print(coord.latitude)
print(coord.longitude)
}
This way you will get your current location.
这样你就可以得到你当前的位置。
回答by Andey Satyanarayana
You neeed to initialize the locationManageger and enable the location flag in xcode also, it appaear bottom of the xcode
您还需要初始化 locationManageger 并在 xcode 中启用位置标志，它出现在 xcode 的底部
self.locationManager = CLLocationManager()
self.locationManager.delegate = self
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest
if #available(iOS 8.0, *) {
if Bundle.main.infoDictionary?["NSLocationAlwaysUsageDescription"] != nil {
self.locationManager.requestAlwaysAuthorization()
}
else {
self.locationManager.requestWhenInUseAuthorization()
}
}
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest
self.locationManager.startUpdatingLocation()
回答by Akhi
You can add this code to your viewDidLoad()method:
您可以将此代码添加到您的viewDidLoad()方法中：
locationManager = CLLocationManager()
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.requestWhenInUseAuthorization()
locationManager.startUpdatingLocation()
This will call the locationManagers didUpdate delegate-methods if location services are available for your app
如果位置服务可用于您的应用程序，这将调用 locationManagers didUpdate 委托方法
