OnResuming does not fire when opening app through Task Switcher Windows Phone 8.1

Question

There are several ways of entering an already open app in Windows Phone 8.1, and one of them is to open the Task Switcher and select the app.
Supposedly, the OnResuming event should fire when this happens, as it does when you click a tile or the app in the app list if the app is in background. However, when you enter the app through the Task Switcher, no event seems to be raised, none whatsoever.

I've tried the OnLaunched, OnResuming, RootFrame_FirstNavigated, OnActivated and OnWindowCreated. None of these is triggered when I open the app through the Task Switcher.

So my question is, how can I know that the user entered the app through the Task Switcher?

Answer 1

this tutorial helped with my app resuming problem http://channel9.msdn.com/Series/Building-Apps-for-Windows-Phone-8-1/07