> Also, the costum loader layout also doesn't work, as I said before, after the splashscreen resizes it goes to the scirra normal progressbar and logo and after that it goes to my costum loader layout. Do you guys know a way to fix this?
>
Described like you did, it sounds like the normal behavior.
The elements on the custom loader layout are loaded first, and they are loaded through the regular Construct 2 loading elements.
Possibly you could modify the "Loader style" project's property and set it to "None" to simply display a black screen before getting to your loader layout.
I will try it. But have you seen the app mortar melon created here in construct 2, The app's loading was smooth and custom loader layout also works, no white line on adjust of splashscreen and splashscreen fills the whole screen, and when I press the menu button of the phone the change of portrait to landscape and vice versa was smooth and no white background(momentarily on transition or orientation change) that looks like the browser is forcing itself to became a game app. The launch or close of the app also doesn't show a half white background(momentarily on transition or orientation change) that looks like the browser is also forcing itself to become a game app? Have you experienced this 
Kyatric ? Since you are a moderator, you might have more knowledge than us.