Loading Indicator on initial page load

Ionic Framework ionic-v3
1

I have a page in my TabsComponent that contains a large component, thus the first time loading this page takes quite a while.
The problem is that while loading all interactions with the app are blocked (no reaction when clicking on other tabs).

I have tried to solve the problem by presenting a loading indicator in ionViewWillEnter() but the indicator is displayed only after the page already rendered.

Question1: Is there a way to get the indicator showing before the page is loaded the first time?
Question2: Is there a way to get user interaction working while the page loads? (If the user clicks on another tab it should immediately switch to that tab)

2

Are you able to include the loading indicator into your component? - Before all the large stuff starts?

3

I just tried to put it inside the big component but it is still rendering the loading indicator after the component rendered.

4

Maybe with ionViewDidLoad()?

5

Already tried that, same result