Android - Bottom Navigation View & Navigation Bar inside a Fragment

_x000D_ _x000D_ I got a problem in my Android application, I have one Activity with multiples Fragments inside. The layout of this activity is here : My problem is that the BottomNavigationView doesn't display on my phone with a virtual Navigation Bar (Huawei phone). But it perfectly works with my Samsung Galaxy S6. I directly thought it was the virtual Navigation Bar that was hiding the BottomNavigationview so I tried to hide it with the code here. And it showed that I was right, but it doesn't solve my problem, because I don't want to hide the Navigation Bar and it can't be permanent. After that, I tried to display my BottomNavigationView in a simple activity and it's working fine on the Huawei. So I think it's a problem that happens inside a Fragment, maybe caused by the DrawerLayout or another thing in my code ? If someone had already encounter this problem, please help me ! Thank you !