App.js

import { StatusBar } from 'expo-status-bar';
import React from 'react';
import { StyleSheet, Text, View } from 'react-native';
import { NavigationContainer } from '@react-navigation/native';
import { createStackNavigator } from '@react-navigation/stack';


import { Main } from './src/screens/Main'


const Stack = createStackNavigator();

export default function App() {
  return (
      <NavigationContainer>
        <Stack.Navigator>
          <Stack.Screen 
            name="Main" 
            component={Main} 
            options={{
              title:"Watermarker"
            }}
            />
        </Stack.Navigator>
      </NavigationContainer>
  );
}

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