Xamarin 启用 GPS android / IOS

Question

下午好，

同意后如何在android和IOS项目中开启GPS？

同意代码可以无缝运行：

public MainPage()
    {
        InitializeComponent();
        CrossConnectivity.Current.ConnectivityChanged += Current_ConnectivityChanged;
        CheckPermissions();

    }

    private async void CheckPermissions()
    {
        var status = await Permissions.CheckStatusAsync<Permissions.LocationWhenInUse>();

        if(status == PermissionStatus.Granted)
        {
            return; 
        }
        else
        {
            await Permissions.RequestAsync<Permissions.LocationWhenInUse>();
        }

    }

如何在同意后自动开启 GPS？