如何在 ios 上启动应用程序时请求权限？

Question

启动应用程序时，如何在 Ios 上请求权限？ 不出现警报窗口。

对 Info.plist 文件进行了以下设置：

<key>UIBackgroundModes</key>
 <array>
    <string>location</string>
</array>
<key>NSLocationAlwaysUsageDescription</key>
<string>Required for the application to work</string>
<key>NSLocationWhenInUseUsageDescription</key>
<string>Required for the application to work</string>
<key>NSLocationAlwaysAndWhenInUseUsageDescription</key>
<string>Required for the application to work</string>

不出现警报窗口。

Answer 1

使用 Location 时，仅在 Info.plist 中添加 key-vaule 是不够的，还需要在应用运行时请求权限。

添加以下代码以进行尝试：

CLLocationManager locationManager = new CLLocationManager();

locationManager.RequestWhenInUseAuthorization();
//Requests permission to use location services while the app is in the foreground.

Or

locationManager.RequestAlwaysAuthorization();
//Requests permission to use location services whenever the app is running.

这是苹果文档和xamarin 示例。