Android black space

Yo guys. So when I run my app on an emulator for Samsung S20, it shows the app perfectly over the entire display. If I run it on phone, there is a weird black space under where the statusbar was, and it doesn’t cover the entire screen. It’s so annoying can someone help out?

Here’s how it’s looking on the emulator and how it should be. Why doesn’t it show like this on phone? the upper area is completely black and it looks ugly on this phone, I want to cover all.

Screenshot_6

worst fucking community ever, god forbid asking a question