LocationServicesEnabled：API 已弃用

Posted 2023-03-05

【中文标题】LocationServicesEnabled：API 已弃用

【英文标题】：LocationServicesEnabled: APIs deprecated

【发布时间】：2014-10-11 20:50:34

【问题描述】：

我使用来自here的代码：

import UIKit 
import CoreLocation

@UIApplicationMain

class AppDelegate: UIResponder, UIApplicationDelegate, CLLocationManagerDelegate 

var window: UIWindow?
var locationManager: CLLocationManager!
var seenError : Bool = false
var locationFixAchieved : Bool = false
var locationStatus : NSString = "Not Started"

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: NSDictionary?) -> Bool 
    initLocationManager();
    return true


// Location Manager helper stuff
func initLocationManager() 
    seenError = false
    locationFixAchieved = false
    locationManager = CLLocationManager()
    locationManager.delegate = self
    locationManager.locationServicesEnabled
    locationManager.desiredAccuracy = kCLLocationAccuracyBest

    locationManager.requestAlwaysAuthorization()


// Location Manager Delegate stuff

func locationManager(manager: CLLocationManager!, didFailWithError error: NSError!) 
    locationManager.stopUpdatingLocation()
    if (error) 
        if (seenError == false) 
            seenError = true
           print(error)
        
    


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

        println(coord.latitude)
        println(coord.longitude)
    


func locationManager(manager: CLLocationManager!,
    didChangeAuthorizationStatus status: CLAuthorizationStatus) 
        var shouldIAllow = false

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

但我有一个错误： 'locationServicesEnabled' 不可用：从 iOS 7 起弃用的 API 在 Swift 中不可用。

谁知道，怎么解决？

谢谢！

【参考方案1】：

自 ios 4.0 起，CLLocationManageris deprecated 的实例上的 locationServicesEnabled 属性，但 class method 不是。

所以而不是：

locationManager.locationServicesEnabled

您应该简单地使用以下内容：

CLLocationManager.locationServicesEnabled()

【讨论】：

自 iOS 4.0 起已弃用实例方法

@smileyborg 谢谢！抱歉，我忘记了 AnyObject[]! 的错误。我必须使用[AnyObject]!吗？

@tim 该委托方法的最新 Swift 语法是：locationManager(_ manager: CLLocationManager!, didUpdateLocations locations: [AnyObject]!)

@smileyborg 我有一个错误：App -[CLLocationManager requestAlwaysAuthorization]: unrecognized selector sent to instance 0x7b6d1550 App *** 由于未捕获的异常“NSInvalidArgumentException”而终止应用程序，原因：'-[CLLocationManager requestAlwaysAuthorization] : 无法识别的选择器发送到实例 0x7b6d1550'

@tim 这些是仅在 iOS 8.0 或更高版本中可用的新方法。如果您在 iOS 7 或更早版本上运行，您将遇到这些崩溃。如果您尝试同时支持这两种方法，您可能需要考虑使用像 INTULocationManager 这样的库来为您处理所有工作。