检查是否启用了定位服务 [英] Check if location services are enabled

问题描述

我一直在研究 CoreLocation.最近，我遇到了一个在其他地方已经讨论过的问题，但是在 Objective C 中，并且适用于 iOS 8.

I've been doing some research about CoreLocation. Recently, I encountered a problem that has been covered elsewhere, but in Objective C, and for iOS 8.

我觉得问这个问题有点傻，但是你如何检查 iOS 9 上是否使用 swift 启用了定位服务?

I feel kinda silly asking this, but how can you check if location services are enabled using swift, on iOS 9?

在 iOS 7(也许是 8?)上，您可以使用 locationServicesEnabled()，但在为 iOS 9 编译时似乎不起作用.

On iOS 7 (and maybe 8?) you could use locationServicesEnabled(), but that doesn't appear to be working when compiling for iOS 9.

那么我将如何做到这一点?

So how would I accomplish this?

谢谢！

推荐答案

将 CLLocationManagerDelegate 添加到您的类继承中，然后您可以进行此检查:

Add the CLLocationManagerDelegate to your class inheritance and then you can make this check:

导入 CoreLocation 框架

Import CoreLocation Framework

import CoreLocation

Swift 1.x - 2.x 版本:

if CLLocationManager.locationServicesEnabled() {
    switch CLLocationManager.authorizationStatus() {
    case .NotDetermined, .Restricted, .Denied:
        print("No access")
    case .AuthorizedAlways, .AuthorizedWhenInUse:
        print("Access")
    }
} else {
    print("Location services are not enabled")
}

Swift 4.x 版本:

if CLLocationManager.locationServicesEnabled() {
     switch CLLocationManager.authorizationStatus() {
        case .notDetermined, .restricted, .denied:
            print("No access")
        case .authorizedAlways, .authorizedWhenInUse:
            print("Access")
     }
} else {
    print("Location services are not enabled")
}

Swift 5.1 版本

if CLLocationManager.locationServicesEnabled() {
    switch CLLocationManager.authorizationStatus() {
        case .notDetermined, .restricted, .denied:
            print("No access")
        case .authorizedAlways, .authorizedWhenInUse:
            print("Access")
        @unknown default:
            break
    }
} else {
    print("Location services are not enabled")
}

iOS 14.x

在 iOS 14 中，您将收到以下错误消息:authorizationStatus() 在 iOS 14.0 中被弃用

要解决此问题，请使用以下方法:

iOS 14.x

In iOS 14 you will get the following error message: authorizationStatus() was deprecated in iOS 14.0

To solve this, use the following:

private let locationManager = CLLocationManager()

if CLLocationManager.locationServicesEnabled() {
    switch locationManager.authorizationStatus {
        case .notDetermined, .restricted, .denied:
            print("No access")
        case .authorizedAlways, .authorizedWhenInUse:
            print("Access")
        @unknown default:
            break
    }
} else {
    print("Location services are not enabled")
}

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