react-native弹窗封装的方法
作者：creat_bug
这篇文章主要为大家详细介绍了react-native弹窗封装的方法，文中示例代码介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们可以参考一下
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>;
}
}调用
showModal(<ModalBg />);
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。