问如何显示或切换文本时，我点击按钮在反应本机？

EN

import React, { useEffect, useState } from "react";
import {View, Text, StyleSheet, Button} from 'react-native'
const Testing = () =>{

  const [showValue, setShowValue] = useState(false);

return (
  <View style={{
    backgroundColor: '#f1f1f1',justifyContent: 'center', alignItems: 'center',}}>

    <Text>1. What is Lorem Ipsum?</Text>
    <Text>
1. dummy 
2. text
3. Ipsum
4. Lorem

</Text>
{showValue? <Text style={{color: 'green', margin: 10,}}>Answer: Lorem</Text> : null}
<Button title="Show Answer" onClick={() => setShowValue(!showValue)} />

</View>

);}
export default Testing;