网赌代理_中国建设银行企业网站_千锋教育和黑马哪个好_上海培训机构排名

解决此种问题的方式有很多

• 可以导入原生库react-native-switch

• 切图 (会缺少动画)

• 使用 js 组件

这里使用 js 绘制组件（原生体验）解决此类问题

Switch.tsx

import React, { useEffect, useRef, useState } from 'react';
import { Animated, Pressable, StyleSheet } from 'react-native';interface SwitchProps {value?: boolean;onChange?: (value: boolean) => void;
}const Switch: React.FC<SwitchProps> = ({ value = false, onChange }) => {const switchAnim = useRef(new Animated.Value(0)).current;const switchHandle = () => {onChange?.(!value);};useEffect(() => {const toValue = value ? 23 : 3;Animated.timing(switchAnim, {toValue,duration: 100,useNativeDriver: false, // 此处原生驱动会导致 ios 颜色显示不对}).start();}, [switchAnim, value]);const backgroundColor = switchAnim.interpolate({inputRange: [0, 25],outputRange: ['#D2D2D2', '#904FF5'],});return (<Pressable onPress={switchHandle}><Animated.View style={[styles.radioContainer, { backgroundColor }]}><Animated.View style={[styles.radio, { transform: [{ translateX: switchAnim }] }]} /></Animated.View></Pressable>);
};const styles = StyleSheet.create({radioContainer: {width: 52,height: 32,borderRadius: 17,justifyContent: 'center',marginRight: 5,},radio: {width: 25,height: 25,backgroundColor: '#FFFFFF',borderRadius: 15,},
});export default (props: SwitchProps) => {const [value, setValue] = useState(props.value || false);// 监听 props.value 的变化并更新内部状态useEffect(() => {setValue(props.value ?? false);}, [props.value]);return (<Switchvalue={value}onChange={() => {props.onChange?.(!value);}}/>);
};

用法

<Switch value={value} onChange={(value: boolean)=>{}} />