container:{ flex:1, justifyContent:'center', alignItems:'center', }
https://reactnavigation.org/docs/material-bottom-tab-navigator https://github.com/oblador/react-native-vector-icons/blob/master/glyphmaps/MaterialCommunityIcons.json
container:{ flex:1, justifyContent:'center', alignItems:'center', }
https://reactnavigation.org/docs/material-bottom-tab-navigator https://github.com/oblador/react-native-vector-icons/blob/master/glyphmaps/MaterialCommunityIcons.json