UWP 应用的 StoreAppLicense 状态“非活动许可证”

Question

以下是 UWP 应用在用户 PC 上获取许可证信息的代码

 private static async Task<int> getLicenseState()
    {
        StoreAppLicense license = await appStoreContext.GetAppLicenseAsync();
        //string licenseMode;
         
        if (license.IsActive)
        {
            if (license.IsTrial)
            {
                //licenseMode = "Trial license";
                return 0;
            }
            else
            {
                //licenseMode = "Full license";
                return 1; 
            }
        }
        else
        {
            //licenseMode = "Inactive license";
            return 2;
        }
         
    }

我困惑的是当应用程序检测到“无效许可证”时如何处理它？

停止应用程序？或者只是显示一些警告信息？还是触发一个窗口要求用户购买应用？

欢迎评论

Answer 1

如果当前应用授权无效，可以使用StoreContext.RequestPurchaseAsync提醒用户购买应用。

private StoreContext context = null;

public async void PurchaseAddOn(string storeId)
{
    if (context == null)
    {
        context = StoreContext.GetDefault();
        // If your app is a desktop app that uses the Desktop Bridge, you
        // may need additional code to configure the StoreContext object.
        // For more info, see https://aka.ms/storecontext-for-desktop.
    }

    workingProgressRing.IsActive = true;
    StorePurchaseResult result = await context.RequestPurchaseAsync(storeId);
    workingProgressRing.IsActive = false;

    // Capture the error message for the operation, if any.
    string extendedError = string.Empty;
    if (result.ExtendedError != null)
    {
        extendedError = result.ExtendedError.Message;
    }

    switch (result.Status)
    {
        case StorePurchaseStatus.AlreadyPurchased:
            textBlock.Text = "The user has already purchased the product.";
            break;

        case StorePurchaseStatus.Succeeded:
            textBlock.Text = "The purchase was successful.";
            break;

        case StorePurchaseStatus.NotPurchased:
            textBlock.Text = "The purchase did not complete. " +
                "The user may have cancelled the purchase. ExtendedError: " + extendedError;
            break;

        case StorePurchaseStatus.NetworkError:
            textBlock.Text = "The purchase was unsuccessful due to a network error. " +
                "ExtendedError: " + extendedError;
            break;

        case StorePurchaseStatus.ServerError:
            textBlock.Text = "The purchase was unsuccessful due to a server error. " +
                "ExtendedError: " + extendedError;
            break;

        default:
            textBlock.Text = "The purchase was unsuccessful due to an unknown error. " +
                "ExtendedError: " + extendedError;
            break;
    }
}