从父组件react native更新子组件道具

// 父组件
import React, { useState } from 'react';
import { View, Text, Button } from 'react-native';
import ChildComponent from './ChildComponent';

const ParentComponent = () => {
  const [count, setCount] = useState(0);

  const incrementCount = () => {
    setCount(count + 1);
  };

  return (
    <View>
      <Text>Count: {count}</Text>
      <Button title="Increment" onPress={incrementCount} />
      <ChildComponent count={count} />
    </View>
  );
};

export default ParentComponent;

// 子组件
import React from 'react';
import { View, Text } from 'react-native';

const ChildComponent = ({ count }) => {
  return (
    <View>
      <Text>Count from parent: {count}</Text>
    </View>
  );
};

export default ChildComponent;