SHELL

@react-navigation/bottom-tabs install

npm i @react-navigation/bottom-tabs

react navigation bottom tabs

npx expo install @react-navigation/native @react-navigation/bottom-tabs

@react-navigation/bottom-tabs get active tab

 const [crtRouteIndex, setCrtRouteIndex] = useState(0)

 return (
    <NavigationContainer
      onStateChange={(state) => setCrtRouteIndex(state?.index || 0)}
    >
	...
)