How to make a bottom navigation bar visible?

Issue

Navigation bar can be seen in picture 1.But when i develop a app and build it, there is no navigation bar.
Please help me to overcome this problem

Solution

Try this :

getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);

you can check documentation also : check here

Answered By - Abhinav Gupta