在应用程序启动时检查启动Uri

Question

Is it possible to check whether an app was navigated to from a secondary tile in App.xaml.cs ? I need to somehow link a user to the WiFi launch uri from a secondary tile on the start screen without the user navigating to the MainPage first. I'd like to check in either Application_Launching or Application_Activated . Currently I am doing this in the OnNavigatedTo event in MainPage which is displaying the MainPage before the built in WiFi app, and this is confusing as well as annoying for the user.

MainPage.xaml.cs

//From Pinned Tile
protected async override void OnNavigatedTo(NavigationEventArgs e)
    {
        if (NavigationContext.QueryString.ContainsKey(Constants.Key))
        {
            string _title = null;
            _title = NavigationContext.QueryString[Constants.Key];

            if (_title != null)
            {
                switch (_title)
                {
                    case "Tile_WiFi":
                        await Windows.System.Launcher.LaunchUriAsync(new Uri("ms-settings-wifi:"));
                        break;

                NavigationContext.QueryString.Remove(Constants.Key);
            }
        }
    }

I am not able to use NavigationService or NavigationContext within App.xaml.cs. Is there an alternative? To note, I got this idea from other apps performing this function on the Store and they do not have the issue of navigating to the MainPage first before the built in app.

private void Application_Launching(object sender, LaunchingEventArgs e)
    {
        //check if we are to navigate to WiFi here
    }

Answer 1

Secondary tiles can have a navigation URI that points directly to a page, and that page will be navigated to directly when the user taps the secondary tile.

If you do not want to show any page, but launch another app you can try to handle the RootFrame.Navigating event, then check the uri and query of the NavigatingCancelEventArgs parameter and cancel the navigation.