Xamarin AdvertisingIdClient.GetAdvertisingIdInfo Timeout

Question

我正在开发Xamarin.Form应用程序(Android和iOs(，它需要获得AAID和IDFA。

我从Android部分开始，我实现了AdvertisingIdClient.GetAdvertising IdInfo，但这个函数返回超时错误(大约10秒后(

我使用Form中的DependencyService从Android项目中获取AAID，并使用Android 11.0进行编译我遵循了互联网上的例子来实现它，但我很确定我错过了什么或做错了什么，但什么？

我做了什么：

• 添加了nugetXamarin.GooglePlayServices.Ads(120.3.0.3(和Xamarin.Google PlayServices.Basement(117.6.0.4(，应该是最新兼容Android 11的
• 为依赖服务创建接口并在Android项目中创建cs
• 在Form中，我使用Task.Run调用我的Dependencyservice函数以在后台运行I(不确定这是正确的方式，但函数运行，否则函数会引发错误(

IDeviceAdIdentifier service = DependencyService.Get<IDeviceAdIdentifier>();

var tadid = Task.Run(() =>
{
var t = service.GetAdvertisingIdentifier();
t.Wait();
return t.Result;
});
tadid.Wait();
Idfa = tadid.Result;

• 在Android中，我从MainActivity保存上下文
• 在Android服务中，我有：

[assembly: Dependency(typeof(TestAdId.Droid.Services.DeviceAdIdentifier))]
namespace TestAdId.Droid.Services
{
public class DeviceAdIdentifier : TestAdId.Services.IDeviceAdIdentifier
{
public async  Task<string> GetAdvertisingIdentifier()
{
if (MainActivity.Context == null) return "";
string id = "";
try
{
AdvertisingIdClient.SetShouldSkipGmsCoreVersionCheck(true);
var adinfo = AdvertisingIdClient.GetAdvertisingIdInfo(MainActivity.Instance); // Also tested with MainActivity.Context which is Application context saved during init
if (adinfo != null)
return adinfo.Id;
}
catch (IOException ioerr)
{
return ioerr.Message;
}
catch (Exception err)
{
return err.Message;
}
return "";
}
}
}

• 在我的清单中：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" android:versionCode="1" android:versionName="1.0" package="com.companyname.testadid" android:installLocation="auto">
<uses-sdk android:minSdkVersion="25" android:targetSdkVersion="30" />
<application android:label="TestAdId.Android" android:theme="@style/MainTheme" android:icon="@drawable/xamarin_logo">
<meta-data android:name="com.google.android.gms.ads.AD_MANAGER_APP" android:value="true" />
<meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version" />

</application>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.INTERNET" />
</manifest>

• 我的三星Galaxy A71上出现的错误是：

  消息：java.util.courrent.TimeoutException：等待服务连接超时

  StackTrace：

at Java.Interop.JniPeerMembers+JniStaticMethods.InvokeObjectMethod (System.String encodedMember, Java.Interop.JniArgumentValue* parameters) [0x00018] in <1921523bc22e407fa9a0855bdae29335>:0 
at Google.Ads.Identifier.AdvertisingIdClient.GetAdvertisingIdInfo (Android.Content.Context context) [0x00027] in /Users/runner/work/1/s/generated/com.google.android.gms.play-services-ads-identifier/obj/Release/monoandroid90/generated/src/Google.Ads.Identifier.AdvertisingIdClient.cs:171 
at TestAdId.Droid.Services.DeviceAdIdentifier.GetAdvertisingIdentifier () [0x00032] in C:WorkingDigitalSourcesTestAdIdTestAdIdTestAdId.AndroidServicesDeviceAdIdentifier.cs:30 
--- End of managed Java.IO.IOException stack trace ---
java.io.IOException: java.util.concurrent.TimeoutException: Timed out waiting for the service connection
at com.google.android.gms.ads.identifier.AdvertisingIdClient.zzb(com.google.android.gms:play-services-ads-identifier@@17.0.1:16)
at com.google.android.gms.ads.identifier.AdvertisingIdClient.getAdvertisingIdInfo(com.google.android.gms:play-services-ads-identifier@@17.0.1:3)
Caused by: java.util.concurrent.TimeoutException: Timed out waiting for the service connection
at com.google.android.gms.common.BlockingServiceConnection.getServiceWithTimeout(com.google.android.gms:play-services-basement@@17.6.0:4)
at com.google.android.gms.ads.identifier.AdvertisingIdClient.zzb(com.google.android.gms:play-services-ads-identifier@@17.0.1:14)
... 1 more

我测试了一个检索AAID的应用程序，它在我的手机上运行。

所以，如果有人能帮助我，那就太好了。如果您需要更多信息/代码，请告诉我

感谢

Hervé

Answer 1

它只是一个POC，所以在MainActivity中没有什么特别的。我创造了一个标准的xamarin。表单项目并将我的代码放在按钮中的关于页面

Android MainActivity.cs

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);
}
}
}

关于屏幕xaml

<?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>

关于表单代码

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