react-native弹窗封装的方法

来源：jb51　　时间：2022/8/23 15:36:49　　对本文有异议

本文实例为大家分享了react-native弹窗封装的具体代码，供大家参考，具体内容如下

上图

仿苹果弹窗组件（android+ios均可用）

以上效果均基于本文的弹窗组件，后续将会介绍上面的组件，也可基于改组件定制更多组件

安装依赖 yarn add react-native-root-siblings 或者 npm install react-native-root-siblings --save

主要代码

显示弹窗

export const showModal = (component) => {
? ? sibling = new RootSiblings(component);
};

销毁弹窗

export const destroySibling = (component) => ?sibling && sibling.destroy()

更新弹窗

export const update = (index, component) => sibling && sibling.update(<View>{component}</View>)

完整代码

多弹窗管理不涉及，暂时介绍单个弹窗，感兴趣的可以自己试试，将sibling改为数组；

//ShowModal.js
import React from 'react';
import {View} from 'react-native';
import RootSiblings from 'react-native-root-siblings'; ?//全局弹框组件
let sibling = null;
export const showModal = (component) => {
? ? sibling = new RootSiblings(component);
};
export const destroySibling = (component) => ?sibling && sibling.destroy()
export const update = (index, component) => sibling && sibling.update(<View>{component}</View>)

使用示例—>淡入背景

组件 ModalBg.js

import React from 'react';
import {Animated, InteractionManager, Easing, TouchableOpacity} from 'react-native';
import {getScreenHeight, getScreenWidth} from '../../utils/util';
import {destroyLastSibling} from '../showModal/ShowModal';
export default class ModalBg extends React.Component {
? animated = new Animated.Value(0);
 
? isShow = false;
 
? componentDidMount(): void {
? ? InteractionManager.runAfterInteractions(() => {
? ? ? this.handleAni();
? ? });
? }
 
? componentWillUnmount(): void {
? ? InteractionManager.runAfterInteractions(() => {
? ? ? this.handleAni();
? ? });
? }
 
? handleAni = () => {
? ? Animated.timing(this.animated, {
? ? ? toValue: this.isShow ? 0 : 1,
? ? ? duration: 250,
? ? ? easing: Easing.ease
? ? }).start(() => this.isShow = !this.isShow);
? };
 
? render() {
? ? const opct = this.animated.interpolate({
? ? ? inputRange: [0, 1],
? ? ? outputRange: [0, 0.4]
? ? });
? ? return <Animated.View style={{
? ? ? position: 'absolute',
? ? ? width: getScreenWidth(),
? ? ? height: getScreenHeight(),
? ? ? backgroundColor: '#000',
? ? ? opacity: opct,
? ? ? zIndex: 10
? ? }}><TouchableOpacity onPress={() => {
? ? ? destroyLastSibling();
? ? }} style={{flex: 1}} /></Animated.View>;
? }
}