I know how can I use tabbar or bottomNavigatorBar. I can create bottom bar with both of them but my question is which one is the best usage to create bottom bar? I mean, which one should I use to create bottom bar?
It will be design based, how you prefer. I prefer using BottomNavigatorBar for <=5 destination. Else, use with Tabbar sometimes.
Let's check the Google material about bottom-navigation
Bottom navigation bars display three to five destinations at the bottom of a screen. Each destination is represented by an icon and an optional text label. When a bottom navigation icon is tapped, the user is taken to the top-level navigation destination associated with that icon.