Question

我到处寻找Apple's sample app。但是当我可以在不需要在电话上运行任何代码的情况下请求位置时，我找不到任何地方，在“接口控制器”中使用下面的代码返回“未确定”状态。我确实检查了我的info.plist是否设置了隐私密钥值。

import Foundation
import CoreLocation

class LocationManager: NSObject, CLLocationManagerDelegate {

    /// Location manager to request authorization and location updates.
    let manager = CLLocationManager()

    /// Flag indicating whether the manager is requesting the user's location.
    var isRequestingLocation = false

      var workoutLocation: CLLocation?

    func requestLocation() {

        guard !isRequestingLocation else {
            manager.stopUpdatingLocation()
            isRequestingLocation = false
            return
        }

        let authorizationStatus = CLLocationManager.authorizationStatus()

        switch authorizationStatus {
        case .notDetermined:
            isRequestingLocation = true
            manager.requestWhenInUseAuthorization()

        case .authorizedWhenInUse:
            isRequestingLocation = true
            manager.requestLocation()

        case .denied:
            print("Location Authorization Denied")
        default:
            print("Location AUthorization Status Unknown")
        }
    }

    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
        guard !locations.isEmpty else { return }

        DispatchQueue.main.async {
            let lastLocationCoordinate = locations.last!.coordinate

            print("Lat =  \(lastLocationCoordinate.latitude)")

            print("Long = \(lastLocationCoordinate.longitude)")

            self.isRequestingLocation = false

        }
    }
}

Main App info.plist

<key>NSLocationAlwaysUsageDescription</key>
    <string>We will read your location while performing a workout to create a workout route</string>
    <key>NSLocationUsageDescription</key>
    <string>We will read your location while performing a workout to create a workout route</string>
    <key>NSLocationWhenInUseUsageDescription</key>
    <string>We will read your location while performing a workout to create a workout route</string>

观看分机信息.plist

<key>NSLocationAlwaysUsageDescription</key>
    <string>We will read your location while performing a workout to create a workout route</string>
    <key>NSLocationUsageDescription</key>
    <string>We will read your location while performing a workout to create a workout route</string>
    <key>NSLocationWhenInUseUsageDescription</key>
    <string>We will read your location while performing a workout to create a workout route</string>

Answer 1

用户只能在iPhone上授予对其位置的访问权限。它不能在Apple Watch上完成。如果已连接手表的iPhone已解锁，则手机上将显示询问位置使用授权的提示;你不需要在iOS上运行任何代码。

来自App Programming Guide for watchOS: Leveraging iOS Technologies

请注意，必须接受某些技术的许可用户的iPhone。用户必须授予使用特定系统的权限技术，如核心位置。使用这些技术之一在您的WatchKit扩展中触发相应的提示用户的iPhone。询问，Apple Watch还会显示自己的提示用户在iPhone上查看权限请求。有关信息有关需要用户权限的技术，请参阅“支持” 用户隐私“在iOS应用编程指南中。

Answer 2

从watchOS 6.0 / Xcode 11开始，这已经成为可能。要启用它，监视扩展目标必须选中int writeText(FILE *wp, char *s) { int sum = 0; while((*s++ = fputc(*s, wp))) { sum++; if(*s == '\0') break; } return sum; }

检查此设置并重建后，我的Supports running without iOS App installation呼叫按预期在表盘上显示了提示。

Answer 3

我使用了Xcode 10.2.1，iOS 12.4，WatchOS 5.3才使它起作用，但是仅在将必要的键（NSLocationAlwaysAndWhenInUseUsageDescription和NSLocationWhenInUseUsageDescription）添加到Info.plist iPhone应用程序。最初，我只在Watch App Extension中定义了它们，在这种情况下，位置授权请求在电话上什么也没有显示。将它们添加到iPhone Info.plist后，在从Watch应用程序请求授权时，我在iPhone上看到了预期的授权对话框，而没有在iPhone应用程序中添加任何其他代码。

也许这是以前版本中的错误，或者也许是deprecated versions of the key names的使用？

仅在Apple Watch上请求位置，而在配对的手机上没有代码

3 个答案: