package Ġcom . example . stock tick ers . fragments Ċ Ċ import Ġandroid . os . Bundle Ċ import Ġandroidx . navigation . fragment . Nav Host Fragment Ċ import Ġcom . example . stock tick ers . R Ċ Ċ class ĠMain Nav Host Fragment Ġ: ĠNav Host Fragment (){ ĊĠĠĠ Ġoverride Ġfun ĠonCreate ( savedInstanceState : ĠBundle ?) Ġ{ ĊĠĠĠĠĠĠĠ Ġsuper . onCreate ( savedInstanceState ) ĊĠĠĠĠĠĠĠ Ġnav Controller . set Graph ( R . navigation . navigation _ graph ) ĊĠĠĠ Ġ} Ċ }