<!-- Height of the bottom navigation / system bar. --> <dimen name=“navigation_bar_height">48dp</dimen> <!-- Height of the bottom navigation bar in portrait; often the same as @dimen/navigation_bar_height --> <dimen name=“navigation_bar_height_landscape">48dp</dimen> <!-- Width of the navigation bar when it is placed vertically on the screen --> <dimen name="navigation_bar_width">42dp</dimen>