Android Studio activity slide to directions.

[Darius Boteand]

Hello everyone!
I made a simple apk file that has 4 buttons. each button is redirecting to a new activity using a slide amin xml.
What I observed is that sliding to the right or left makes the pages stuck to each other, giving a continuous effect.
But this is not the case when I slide up or down. It has like a black gap between pages.
Are there any ways to make it look continuous?
Thank you in advance!

[Randy Tong]

What you mean by continuous effect?

[Darius Boteand]

Imagine two blank papers put on a table one next to the other.
From east to west and vis versa, it would slide from a page to another while stuck together. As if it was in fact one single big page.
From north to south and reverse, they are appearing separated (displaying a black background). The easiest experience that can relate to that is like using Microsoft Word when you get from a page to another.

[Darius Boteand]

Ok, I found the answer myself.
In fact this "dark bar" was the colour of the navigation bar that followed the page when swiped up or down.
Changing its colour depending on what activity I go to was enough to solve the issue.
Thank you for trying at least.