App.js

import { StatusBar } from 'expo-status-bar';
import { StyleSheet, Text, View } from 'react-native';
import Collect from "./screens/collect";
import Data from "./screens/data";
import { createDrawerNavigator } from '@react-navigation/drawer';
import { NavigationContainer } from '@react-navigation/native';
import 'react-native-gesture-handler'

const Drawer = createDrawerNavigator();

export default function App() {
  return (
    <NavigationContainer>
      <Drawer.Navigator initialRouteName="Collect">
        <Drawer.Screen name="Collect" component={Collect} />
        <Drawer.Screen name="Data" component={Data} />
      </Drawer.Navigator>
    </NavigationContainer>
  );
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    backgroundColor: '#fff',
    alignItems: 'center',
    justifyContent: 'center',
  },
});