尽管折叠了 AdDuplex 广告控件，但它仍会继续显示

Question

我正在创建一个 WinRT（Windows 8.1 和 Windows Phone 8.1）应用，我在其中一个页面中放置了一个 AdDuplex 广告控件。

应用的用户可以选择移除广告（使用 IAP）。当他们这样做时，我从 ViewModel 页面将 AdDuplex 广告控件的 Visibility 设置为 Collapsed。

这部分工作正常；但是，过了一段时间，当用户仍在页面上时，AdDuplex 广告控件突然再次变得可见并开始显示广告。

一开始，我认为这是使用 CurrentAppSimulator 时 IAP 的行为，尽管这对我来说没有意义，因为我的代码中没有任何内容可以对许可证更改做出反应，因此将控件设置回Visible。然而，我为我的“NoAd”产品测试了license.IsActive，得到了true，表明许可证有效。

以下是我的代码的简化部分：

MyPage.xaml

<ad:AdControl
    AdUnitId="{StaticResource AdUnitId}"
    AppKey="{StaticResource AdAppKey}"
    IsTest="True"
    CollapseOnError="True"
    Visibility="{Binding IsNoAdPurchased, Converter={StaticResource BooleanToVisibilityInvertedConverter}}"/>

MyPageViewModel.cs

private async void RemoveAd()
{
    this.IsNoAdPurchased = await this.storeService.PurchaseProductAsync(Products.NoAd);
}

StoreService.cs

#if DEBUG
using StoreCurrentApp = Windows.ApplicationModel.Store.CurrentAppSimulator;
#else
using StoreCurrentApp = Windows.ApplicationModel.Store.CurrentApp;
#endif

public sealed class StoreService
{
    public async Task<bool> PurchaseProductAsync(string productId)
    {
        try
        {
            var purchase = await StoreCurrentApp.RequestProductPurchaseAsync(productId);
            return purchase.Status == ProductPurchaseStatus.Succeeded || purchase.Status == ProductPurchaseStatus.AlreadyPurchased;
        }
        catch (Exception)
        {
            // The purchase did not complete because an error occurred.
            return false;
        }
    }
}

Answer 1

我做了一个demo，后面跟着你，你可以参考一下。

xaml 部分：

<Page.Resources>
    <local:MyConverter x:Key="myconverter"></local:MyConverter>
</Page.Resources>

<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
    <Windows81:AdMediatorControl x:Name="AdMediator" HorizontalAlignment="Left" Height="250" Id="AdMediator-Id-FA61D7FD-4F5F-445D-AB97-DB91618DBC70" Margin="557,287,0,0" VerticalAlignment="Top" Width="300" Visibility="{Binding IsVisible,Converter={StaticResource myconverter}}" />
    <Button Name="btn1" Content="Remove ad" Click="RemoveAd" Visibility="Visible" />
</Grid>

后面的代码：

public class Recording : INotifyPropertyChanged
    {
        private bool isVisible;

        public Recording()
        {
        }

        public bool IsVisible
        {
            get
            {
                return isVisible;
            }

            set
            {
                if (value != isVisible)
                {
                    isVisible = value;
                    OnPropertyChanged("IsVisible");
                }
            }
        }

        public event PropertyChangedEventHandler PropertyChanged;

        public void OnPropertyChanged(string propertyName)
        {
            if (PropertyChanged != null)
            {
                PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
            }
        }
    }

    /// <summary>
    /// An empty page that can be used on its own or navigated to within a Frame.
    /// </summary>
    public sealed partial class MainPage : Page
    {
        private Recording recording;

        public MainPage()
        {
            this.InitializeComponent();
            Init();
            recording = new Recording();
            recording.IsVisible = false;
            this.DataContext = recording;

        }

        private async void Init()
        {
            StorageFile proxyFile = await Package.Current.InstalledLocation.GetFileAsync("in-app-purchase.xml");
            await CurrentAppSimulator.ReloadSimulatorAsync(proxyFile);
        }

        public async Task<bool> PurchaseProductAsync(string productId)
        {
            try
            {
                var purchase = await CurrentAppSimulator.RequestProductPurchaseAsync(productId);
                return purchase.Status == ProductPurchaseStatus.Succeeded || purchase.Status == ProductPurchaseStatus.AlreadyPurchased;
            }
            catch (Exception)
            {
                // The purchase did not complete because an error occurred.
                return false;
            }
        }

        private async void RemoveAd(object sender, RoutedEventArgs e)
        {
            recording.IsVisible = await this.PurchaseProductAsync("product2");
        }


    }

    public class MyConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, string language)
        {
            if (value is Boolean && (bool)value)
            {
                return Visibility.Collapsed;
            }
            else
            {
                return Visibility.Visible;
            }
        }

        public object ConvertBack(object value, Type targetType, object parameter, string language)
        {
            throw new NotImplementedException();
        }
    }

我已经测试过了，购买产品后，广告将不再显示。

另外我想建议你使用另一种不绑定的方法。

xaml 部分：

<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
        <Windows81:AdMediatorControl x:Name="AdMediator" HorizontalAlignment="Left" Height="250" Id="AdMediator-Id-FA61D7FD-4F5F-445D-AB97-DB91618DBC70" Margin="557,287,0,0" VerticalAlignment="Top" Width="300" Visibility="Visible" />
        <Button Name="btn1" Content="Remove ad" Click="Button_Click" Visibility="Visible" />
</Grid>

后面的代码：

namespace AdmediatorTest
{
    /// <summary>
    /// An empty page that can be used on its own or navigated to within a Frame.
    /// </summary>
    public sealed partial class MainPage : Page
    {
        public MainPage()
        {
            this.InitializeComponent();
            Init();

            LicenseInformation licenseInformation = CurrentAppSimulator.LicenseInformation;
            if (!licenseInformation.ProductLicenses["product2"].IsActive)
            {
                btn1.Visibility = Visibility.Visible;
            }
            else
            {
                btn1.Visibility = Visibility.Collapsed;
            }
        }

        private async void Init()
        {
            StorageFile proxyFile = await Package.Current.InstalledLocation.GetFileAsync("in-app-purchase.xml");
            await CurrentAppSimulator.ReloadSimulatorAsync(proxyFile);
        }

        private async void Button_Click(object sender, RoutedEventArgs e)
        {
            LicenseInformation licenseInformation = CurrentAppSimulator.LicenseInformation;
            if (!licenseInformation.ProductLicenses["product2"].IsActive)
            {
                try
                {
                    await CurrentAppSimulator.RequestProductPurchaseAsync("product2");
                    if (licenseInformation.ProductLicenses["product2"].IsActive)
                    {
                        AdMediator.Visibility = Visibility.Collapsed;
                    }
                    else
                    {
                        AdMediator.Visibility = Visibility.Visible;
                    }
                }
                catch (Exception)
                {
                    //rootPage.NotifyUser("Unable to buy " + productName + ".", NotifyType.ErrorMessage);
                }
            }
            else
            {
                //rootPage.NotifyUser("You already own " + productName + ".", NotifyType.ErrorMessage);
            }
        }
    }
}

另外我发现了一个awesome video关于IAP后删除广告的内容，你也可以参考一下。

Answer 2

这是 AdDuplex 广告控制的一个问题，已在版本 9.0.0.13 中得到修复。

注意：不要忘记将IsTest 设置为false 以查看“生产”行为。