UWP Share Target open main view

Question

I'm having a problem with the share target implementation in my app. It is driving me crazy.

I have in my App.xaml.cs :

protected override void OnShareTargetActivated(ShareTargetActivatedEventArgs args)
        {
            var rootFrame = new Frame();
            rootFrame.Navigate(typeof(ShareTarget), args.ShareOperation);
            Window.Current.Content = rootFrame;
            Window.Current.Activate();
        }

working fine! --> next:
In my ShareTarget.cs I would "simply" like to open the apps main window if open or not open.

Currently I have:

        await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () => Frame.Navigate(typeof(MainPage), this));

which only opens the Mainpage on the right side inside the "sharing" frame. I would like to open the main frame.

in the OnNavigatedTo method of MainPage

Here I tried opening a new View and dismissing the sharing frame with:

var newView = CoreApplication.CreateNewView();
                await newView.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
                {
                    var frame = new Frame();
                    frame.Navigate(typeof(MainPage), null);
                    Window.Current.Content = frame;
                });

If the app is closed i get this error:

WinRT information: Could not create a new view because the main window has not yet been created

If the app is open the sharing frame on the right navigates to MainPage and closes after a few seconds.

Can't believe Microsoft has made it so difficult to form a proper implementation.

Answer 1

The only way that seems to be possible is like @Raymon Chen suggested through creating a protocol launch.

I used this page to which explains it all pretty well:

http://www.c-sharpcorner.com/UploadFile/6f0898/inter-app-communications-in-windows-10-uwp535/

It contains some typos. Please be careful.