objective-c 为什么 requestWhenInUseAuthorization 不提示用户访问该位置？
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/31845450/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Why requestWhenInUseAuthorization doesn't prompt the user for access to the location?
提问by spenf10
In my viewDidLoadmethod I have
在我的viewDidLoad方法中，我有
locationManager = [[CLLocationManager alloc]init]; // initializing locationManager
locationManager.delegate = self; // we set the delegate of locationManager to self.
locationManager.desiredAccuracy = kCLLocationAccuracyBest;
[locationManager startUpdatingLocation];
if([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0) {
[locationManager requestWhenInUseAuthorization];
}
And the request is called, but the user is not prompted? Why?
并且调用了请求，但是没有提示用户？为什么？
回答by Adrian
You probably need to update your plistfile. Here's a tutorial how to do it, quick & dirty:
您可能需要更新您的plist文件。这是一个如何做到这一点的教程，快速而肮脏：
You need to do is to add one of the following keys to your Info.plist file:
您需要做的是将以下键之一添加到您的 Info.plist 文件中：
NSLocationWhenInUseUsageDescription
NSLocationAlwaysUsageDescription
You also need to request authorization for the corresponding location method, WhenInUseor Background. Use one of these calls:
您还需要为相应的定位方法申请授权，WhenInUse或者Background。使用以下调用之一：
[self.locationManager requestWhenInUseAuthorization]
[self.locationManager requestAlwaysAuthorization]
There's also a post that I found helpful:
还有一篇我觉得很有帮助的帖子：
Location Services not working in iOS 8
This answer details how to update your plistfile:
此答案详细说明了如何更新您的plist文件：
Add one of the following lines to your info.plist
<key>NSLocationWhenInUseUsageDescription</key> <string>The spirit of stack overflow is coders helping coders</string> <key>NSLocationAlwaysUsageDescription</key> <string>I have learned more on stack overflow than anything else</string>
将以下行之一添加到您的 info.plist
<key>NSLocationWhenInUseUsageDescription</key> <string>The spirit of stack overflow is coders helping coders</string> <key>NSLocationAlwaysUsageDescription</key> <string>I have learned more on stack overflow than anything else</string>
You'll probably want to customize and spell-check the strings of the dictionary entry that goes in the info.plist file before shipping the code.
在发送代码之前，您可能希望自定义和拼写检查 info.plist 文件中的字典条目的字符串。
