[Interest] Android launch screens?

[Jason H]

This question is 50% Qt and 50% Android. Now that I have a launch screen working in iOS, I'd like the same thing in Android.

Now, iOS lists the launch screen separately from the rest of the application, so it can be loaded without having to load the whole app. I'm not sure this is the case in Android. Most android tutorials just create a Activity subclass with a timeout.

I was wondering if:
1) There is a true launch screen for android (not just faking it with a timeout - I want it to only be displayed for as long as the app is loading),
2) How I can accomplish it in Qt? I *think* some people may have done something with a Loader Element to create a stub, then dynamically load the screens, but I'm not sure of what all that entails, and if there are any caveats. 
2a) Also, do I need to provide an Activity, or can I do it all in Qt/QML? 
2b) Is there any actual perceived benefit? The iOS makes the app seem more responsive in a way, and the loading time is not significantly increased.

Many thanks in advance.