public void setStatusBarBackground(@Nullable Drawable bg) {
        mStatusBarBackground = bg;
        invalidate();
    }
Set a drawable to draw in the insets area for the status bar.
Note that this will only be activated if this HomeDrawerLayout fitsSystemWindows.

@param bg Background drawable to draw behind the status bar
app/src/main/java/com/sunnyweather/android/ui/customerUIs/HomeDrawerLayout.java