时间轴中的UWP UserActivity无法导航到单击的正确页面

Question

我正在开发要与Windows时间轴集成的UWP应用。 但是，当我在“时间轴”中单击适用于我的应用程序的自适应卡时，该卡始终会导航到首页，而不是SecondPage。 我怀疑App.xaml.cs中的Shell或我的URI协议中的OnActivated中存在错误，但是我不确定。 任何意见，将不胜感激。

App.xaml.cs

    protected override void OnActivated(IActivatedEventArgs e)
    {
        if (!(Window.Current.Content is Shell shell))
        {
            shell = new Shell();

            Window.Current.Content = shell;

            if (e.Kind == ActivationKind.Protocol)
            {
                var uriArgs = e as ProtocolActivatedEventArgs;
                if (uriArgs != null)
                {
                    if (uriArgs.Uri.Host == "secondpage")
                    {
                        shell.RootFrame.Navigate(typeof(SecondPage), uriArgs);
                    }
                }
            }
            Window.Current.Activate();
        }
    }

SecondPage.xaml.cs

protected override async void OnNavigatedTo(NavigationEventArgs e)
    {
        // If we were activated from a URI, say so.
        // A real app would use the information in the URI to restore state.

            await CreateUserActivityAsync();
    }

    async Task CreateUserActivityAsync()
    {
        // Get channel and create activity.
        UserActivityChannel channel = UserActivityChannel.GetDefault();
        UserActivity activity = await channel.GetOrCreateUserActivityAsync("MyActivityName");

        // Set deep-link and properties.
        activity.ActivationUri = new Uri("myapp:page?secondpage");
        activity.VisualElements.DisplayText = "Second Page";

        // Save to activity feed.
        await activity.SaveAsync();

        // Create a session, which indicates that the user is engaged
        // in the activity.
        _currentSession = activity.CreateSession();
    }

    protected override void OnNavigatedFrom(NavigationEventArgs e)
    {
        // Dispose the session, which indicates that the user is no longer
        // engaged in the activity.
        _currentSession?.Dispose();
    }

Answer 1

在CreateUserActivityAsync方法中创建UserActivity时，配置的Uri格式错误，因此OnActivated方法中的uriArgs.Uri.Host将为""并且没有任何字符串值与字符串“ secondpage”相匹配。 请修改您的Uri为：

 // Set deep-link and properties.
 activity.ActivationUri = new Uri("myapp://secondpage?xxxxxx");

然后，您可以在OnActivated方法中匹配uriArgs.Uri.Host == "secondpage" 。