在React Native中点击按钮时更改样式(背景颜色)

import React, { useState } from 'react';
import { View, Button, StyleSheet } from 'react-native';

const App = () => {
  const [backgroundColor, setBackgroundColor] = useState('white');

  // 定义点击按钮时更改背景颜色的函数
  const changeBackgroundColor = () => {
    const newColor = backgroundColor === 'white' ? 'blue' : 'white';
    setBackgroundColor(newColor);
  };

  return (
    <View style={[styles.container, { backgroundColor }]}>
      <Button title="点击我" onPress={changeBackgroundColor} />
    </View>
  );
};

import React, { useState } from 'react';
import { View, Button, StyleSheet } from 'react-native';

const App = () => {
  const [backgroundColor, setBackgroundColor] = useState('white');

  const changeBackgroundColor = () => {
    const newColor = backgroundColor === 'white' ? 'blue' : 'white';
    setBackgroundColor(newColor);
  };

  return (
    <View style={[styles.container, { backgroundColor }]}>
      <Button title="点击我" onPress={changeBackgroundColor} />
    </View>
  );
};

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

export default App;