BottomNavigationBar underneath NavBar

Question

The Goal:

1) Make the status bar transparent - Done

2) Make the BottomNavigationView and the Navbar

Answer 1

How would I make the TOP of the layout go underneath the statusbar?

Add this to root layout of each activity you need:

android:fitsSystemWindows="true"

BottomNavigationView falls underneath the NavBar

I don't know if you can find a way to handle this as long as you keep using FLAG_LAYOUT_NO_LIMITS. If you still want to use it, you may try to check if device has a NavigationBar and calculate its height which you can give to BottomNavigationView as a bottom margin.

To do that you can find some useful methods in this SO answer. Add another method like:

public void setMargin(int height){
    ViewGroup.MarginLayoutParams params = (ViewGroup.MarginLayoutParams) mBottomNavigationView.getLayoutParams();
    params.bottomMargin = height;
}

And in onCreate(), get the height of the NavigationBar if it exists and setMargin of BottomNavigationView:

int bottomNavHeight = getNavigationBarSize(this).y;
if( bottomNavHeight > 0){
         setMargin(bottomNavHeight);
}

Result will be like: