当用户拒绝访问位置服务时，您如何确定CLLocationManager？ [英] How do you determine with CLLocationManager when a user denies access to location services?

问题描述

使用CLLocationManager，我可以使用以下代码来确定我是否可以访问设备上的位置服务。这是所有应用程序的主设置，可以打开和关闭。

  if（self.locationManager.locationServicesEnabled）{
 [self.locationManager startUpdatingLocation]; 
} 
  

但是用户可以拒绝对单个应用程序的访问，并且为了不执行要使用位置管理器的代码，我需要知道用户是否批准访问此特定应用的位置服务。我看到有一次有一个名为locationServicesApproved的属性，它显示它会指示用户是否批准在此应用中访问位置服务。但它在2008年被删除。

来源： http://trailsinthesand.com/apple-removes-notifications-from-iphone-sdk-beta-4/

似乎无法确定用户是否批准了对位置服务的访问，但似乎是SDK中的一个大漏洞。

这是SDK中的其他功能？我能做些什么来确定用户是否已批准访问当前应用程序的位置服务？

解决方案

我解答了我自己的问题在上面的问题的评论。

答案（从上面的评论复制）：

看起来您必须等待locationManager：didFailWithError：被调用，并且错误代码将指向CLError.h中的值。值为kCLErrorLocationUnknown，kCLErrorDenied，kCLErrorNetwork和kCLErrorHeadingFailure。看起来第二个值是我应该检查用户是否拒绝对位置服务的访问。

With CLLocationManager I can use the following code to determine if I can access location services on the device. This is the master setting for all apps and can be turned on and off.

if (self.locationManager.locationServicesEnabled) {
    [self.locationManager startUpdatingLocation];
}

But a user can deny access to an individual app and in order to not execute the code to use the location manager I need to know if the user approved access to location services for this specific app. I saw that at one point there was a property called locationServicesApproved which appears it would indicate if the user approved access to location services in this app. But it was removed in 2008.

Source: http://trailsinthesand.com/apple-removes-notifications-from-iphone-sdk-beta-4/

It appears that there is no way to determine if the user approved access to location services but that seems to be a big hole in the SDK.

Is this feature in the SDK elsewhere? What can I do to determine if the user has approved access to location services for the current app?

解决方案

I answered my own question in the comment to the question above.

The answer (copied from the comment above):

It appears that you must wait for locationManager:didFailWithError: to be called and the error code will point to values in CLError.h. Values are kCLErrorLocationUnknown, kCLErrorDenied, kCLErrorNetwork, and kCLErrorHeadingFailure. It appears that the second value is what I should check to see if the user denied access to location services.

这篇关于当用户拒绝访问位置服务时，您如何确定CLLocationManager？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！