问AdvertisingIdClient.GetAdvertisingIdInfo超时

EN

using System;

using Android.App;
using Android.Content.PM;
using Android.Runtime;
using Android.OS;
using Android.Content;

namespace TestAdId.Droid
{
    [Activity(Label = "TestAdId", Icon = "@mipmap/icon", Theme = "@style/MainTheme", MainLauncher = true, ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation | ConfigChanges.UiMode | ConfigChanges.ScreenLayout | ConfigChanges.SmallestScreenSize )]
    public class MainActivity : global::Xamarin.Forms.Platform.Android.FormsAppCompatActivity
    {
        public static Context Context =null;
        public static MainActivity Instance = null;
        protected override void OnCreate(Bundle savedInstanceState)
        {
            Instance = this;
            base.OnCreate(savedInstanceState);


            Context = Android.App.Application.Context;
            Xamarin.Essentials.Platform.Init(this, savedInstanceState);
            global::Xamarin.Forms.Forms.Init(this, savedInstanceState);
            LoadApplication(new App());
        }
        public override void OnRequestPermissionsResult(int requestCode, string[] permissions, [GeneratedEnum] Android.Content.PM.Permission[] grantResults)
        {
            Xamarin.Essentials.Platform.OnRequestPermissionsResult(requestCode, permissions, grantResults);

            base.OnRequestPermissionsResult(requestCode, permissions, grantResults);
        }
    }
}

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="TestAdId.Views.AboutPage"
             xmlns:vm="clr-namespace:TestAdId.ViewModels"
             Title="{Binding Title}">
    
    <ContentPage.BindingContext>
        <vm:AboutViewModel />
    </ContentPage.BindingContext>
    
    <ContentPage.Resources>
        <ResourceDictionary>
            <Color x:Key="Accent">#96d1ff</Color>
        </ResourceDictionary>
    </ContentPage.Resources>

    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto" />
            <RowDefinition Height="*" />
        </Grid.RowDefinitions>
        <StackLayout BackgroundColor="{StaticResource Accent}" VerticalOptions="FillAndExpand" HorizontalOptions="Fill">
            <StackLayout Orientation="Horizontal" HorizontalOptions="Center" VerticalOptions="Center">
                <ContentView Padding="0,40,0,40" VerticalOptions="FillAndExpand">
                    <Image Source="xamarin_logo.png" VerticalOptions="Center" HeightRequest="64" />
                </ContentView>
            </StackLayout>
        </StackLayout>
        <ScrollView Grid.Row="1">
            <StackLayout Orientation="Vertical" Padding="30,24,30,24" Spacing="10">
                <Label Text="Start developing now" FontSize="Title"/>
                <Label Text="Make changes to your XAML file and save to see your UI update in the running app with XAML Hot Reload. Give it a try!" FontSize="16" Padding="0,0,0,0"/>
                <Label FontSize="16" Padding="0,24,0,0">
                    <Label.FormattedText>
                        <FormattedString>
                            <FormattedString.Spans>
                                <Span Text="Learn more at "/>
                                <Span Text="https://aka.ms/xamarin-quickstart" FontAttributes="Bold"/>
                            </FormattedString.Spans>
                        </FormattedString>
                    </Label.FormattedText>
                </Label>
                <Label x:Name="IdfaLabel" Text="Unknown" TextColor="Black" FontSize="16" ></Label>
                <Button Margin="0,10,0,0" Text="Get IDFA"
                        Clicked="Button_Clicked"
                        BackgroundColor="{StaticResource Primary}"
                        TextColor="White" />
            </StackLayout>
        </ScrollView>
    </Grid>

</ContentPage>

using System;
using System.ComponentModel;
using System.Threading.Tasks;
using TestAdId.Services;
using Xamarin.Forms;
using Xamarin.Forms.Xaml;
using System.Net;
namespace TestAdId.Views
{
    public partial class AboutPage : ContentPage
    {
        public string Idfa = "";
        public AboutPage()
        {
            InitializeComponent();
        }

        private void Button_Clicked(object sender, EventArgs e)
        {
            
            IdfaLabel.Text = "Getting IDFA...";
            IDeviceAdIdentifier service = DependencyService.Get<IDeviceAdIdentifier>();
            
            var tadid = Task.Run(() =>
            {
                var t = service.GetAdvertisingIdentifier();
                t.Wait();
                return t.Result;
            });

            tadid.Wait();
            Idfa = tadid.Result;
            IdfaLabel.Text = Idfa;
        }
    }
}```

Tell me if you need another thing. This is a really simple sample just to try to making AAID working

Thanks

Regards

Hervé