How to create bottom navigation bar similar to instagram

Question

I am an android newbie trying to create a bottom navigation bar for my new android app similar to one there in Instagram. Like this where clicking on the search icon adds a

Answer 1

If you want a library for BottomBar here's one. You have to control Visibility of your SearchBar on the click of that bottom bar item. If you are trying to implement your own searchBar then check out this links link1 link2