react native simple button press

gistfile1.txt

import { StatusBar } from 'expo-status-bar';
import React, {State,Component } from 'react';
import { Button,StyleSheet, Text, View } from 'react-native';

const HelloWorldApp = () => {

  return (
    <View
      style={{
        flex: 1,
        justifyContent: "center",
        alignItems: "center"
      }}>
      <Text>Hello, world!</Text>

    <Button
        onPress={() => {
        alert('You tapped the button!');
        }}
        title="Press Me"
    />
    </View>
  )
}
export default HelloWorldApp;