[WP8.1][C#] Crash on IAP page

Question

I installed published application from store and when I test IAP on developer unlocked device IAP page appears for 5 - 10 seconds and closes, application closes too. In Application Insights reports I do not see any errors, when I test with CurrentAppSimulator it works fine. Also in reports I see some users bought IAP. I can buy IAPs in other applications from that device, but not in mine. Is it some known limitation or a bug?

CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, async () =>
{
    try
    {
        await CurrentApp.RequestProductPurchaseAsync("RemoveAd");
    }
    catch (Exception e)
    {
        TelemetryService.Exception(e, "Settings View Model (try purchase IAP)");
    }
})
.AsTask();

Answer 1

Hi,

>>Also in reports I see some users bought IAP

Is there any end-users report this issue for your app? Have you tried to install your app on other device?

The IAP feature is also closely associated with Windows Store service side, I would also suggest you contacting with support using MS account/subscription.

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Answer 2

They do not report, but app already got one one star rating without explanation of reasons. I added custom events in Application Insights and see following picture:

Obviously, user tried make purchase and after 5 seconds page closed. He tried again and next time he had 2 seconds, what is of course not enought to complete purchase.

Maybe I do something wrong, maybe I should call LoadListingInformationAsync() before RequestProductPurchaseAsync() or something like that? Is there some sample project for IAPs?

Answer 3

And full code:

//Used to bind banner visibility

public bool IsAdEnabled
{
    get
    {
        var internetAvailable = NetworkInterface.GetIsNetworkAvailable();

        if (!internetAvailable) return false;

        var license = CurrentApp.LicenseInformation.ProductLicenses["RemoveAd"];

        return !(license != null && license.IsActive);
    }
}

//Used to bind Disable Ads button visibility

public bool CanDisableAd
{
    get
    {
        var internetAvailable = NetworkInterface.GetIsNetworkAvailable();

        var license = CurrentApp.LicenseInformation.ProductLicenses["RemoveAd"];

        return internetAvailable && !license.IsActive;
    }
}

private void DisableAd()
{
    if (NetworkInterface.GetIsNetworkAvailable())
    {
        OnPurchaseStarting();

        CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, async () =>
        {
            try
            {
                await CurrentApp.RequestProductPurchaseAsync("RemoveAd");
            }
            catch (Exception e)
            {
                TelemetryService.Exception(e, "Settings View Model (try purchase IAP)");
            }

            OnPurchaseCompleted();
            OnPropertyChanged("IsAdEnabled");
            OnPropertyChanged("CanDisableAd");
        })
        .AsTask();
    }
}

Answer 4

Today it is working. Thank you!