提示用户进行应用反馈

Question

当他们第五次打开我的应用程序时，我试图让应用程序审查提示出现，但我似乎没有任何运气。我试过在这个网站上使用代码，但它对我不起作用。还有其他人知道的吗？

connection/archive/2013/07/25/prompting-for-feedback-within-your-windows-phone-or-windows-8-app-game.aspx

    async protected override void OnLaunched(LaunchActivatedEventArgs e)
    {
        #if DEBUG
        if (System.Diagnostics.Debugger.IsAttached)
        {
            this.DebugSettings.EnableFrameRateCounter = true;
        }
        #endif

        Frame rootFrame = Window.Current.Content as Frame;

        // Do not repeat app initialization when the Window already has content,
        // just ensure that the window is active
        if (rootFrame == null)
        {
            // Create a Frame to act as the navigation context and navigate to the first page
            rootFrame = new Frame();
            // Set the default language
            rootFrame.Language = Windows.Globalization.ApplicationLanguages.Languages[0];

            rootFrame.NavigationFailed += OnNavigationFailed;

            if (e.PreviousExecutionState == ApplicationExecutionState.Terminated)
            {
                //TODO: Load state from previously suspended application
            }

            // Place the frame in the current Window
            Window.Current.Content = rootFrame;
        }

        if (rootFrame.Content == null)
        {
            // When the navigation stack isn't restored navigate to the first page,
            // configuring the new page by passing required information as a navigation
            // parameter
            rootFrame.Navigate(typeof(MainPage), e.Arguments);
        }
        // Ensure the current window is active
        Window.Current.Activate();

        int started = 0;
        if (Windows.Storage.ApplicationData.Current.RoamingSettings.Values.ContainsKey("started"))
        {
            started = (int)Windows.Storage.ApplicationData.Current.RoamingSettings.Values["started"];
        }

        started++;
        Windows.Storage.ApplicationData.Current.RoamingSettings.Values["started"] = started;

        if (started == 3)
        {
            var md = new Windows.UI.Popups.MessageDialog("Thank you for using this app?", "Please review my app");
            bool? reviewresult = null;
            md.Commands.Add(new Windows.UI.Popups.UICommand("OK", new Windows.UI.Popups.UICommandInvokedHandler((cmd) => reviewresult = true)));
            md.Commands.Add(new Windows.UI.Popups.UICommand("Cancel", new Windows.UI.Popups.UICommandInvokedHandler((cmd) => reviewresult = false)));
            await md.ShowAsync();
            if (reviewresult == true)
            {
                string familyName = Package.Current.Id.FamilyName;
                await Windows.System.Launcher.LaunchUriAsync(new Uri(string.Format("ms-windows-store:REVIEW?PFN={0}", familyName)));
            }
        }
    }

Answer 1

在应用程序初始化到可以启动MessageDialog之前，您将调用它。

如果您查看正在复制的这篇文章，您将看到它将在调用OnLaunched ()之后将新代码放在Window.Current.Activate()方法的底部，而不是在OnLaunched方法的开头。

如果您这样做，那么对话框将按需要工作。