✨✨ 这是一款非常有用轻巧的 React 组件,你可以应用到任何需要滚动监听的场景
- 滚动曝光埋点
 - 图片懒加载
 - 视图区域按需加载
 
...
import Watcher from 'mor-scroll-watcher'
const WatcherItem = Watcher.item
Watcher.init(options)
<WatcherItem ...>
	...
</WatcherItem>你只需要将需要被滚动触发的节点设置为
WatcherItem节点的children,就能达到滚动触发的目的。
import React, { Component } from 'react'
import Watcher from 'mor-scroll-watcher'
const WatcherItem = Watcher.item
export default class Home extends Component {
	componentDidMount () {
		new Watcher({
			wrap: findDOMNode(this.refs.views)
			// bottomEmit: 100,
			// initEmit: false
		})
	}
	onWatcher (index) {
		// do something
		console.log(index)
	}
	render () {
		const list = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]
		return (
			<div className="wrap" ref="views">
				<For of={list} each="item" index="index">
					<WatcherItem
						className="w-full scroller-item"
						key={index}
						style={{
							height: '200px',
							background: 'yellow',
							margin: '20px 0'
						}}
						onWatcher={this.onWatcher.bind(this, index)}
					>
						{item}
					</WatcherItem>
				</For>
			</div>
		)
	}
}当页面内存在多个需要被监听滚动的容器时,需要设置唯一ID
import React, { Component } from 'react'
import Watcher from 'mor-scroll-watcher'
const WatcherItem = Watcher.item
export default class Home extends Component {
	componentDidMount () {
		new Watcher({
			wrap: findDOMNode(this.refs.views)
			monaId: 'weiyiID_123456'
			// bottomEmit: 100,
			// initEmit: false
		})
	}
	onWatcher (index) {
		// do something
		console.log(index)
	}
	render () {
		const list = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]
		return (
			<div className="wrap" ref="views">
				<For of={list} each="item" index="index">
					<WatcherItem
						monaId: 'weiyiID_123456'
						className="w-full scroller-item"
						key={index}
						style={{
							height: '200px',
							background: 'yellow',
							margin: '20px 0'
						}}
						onWatcher={this.onWatcher.bind(this, index)}
					>
						{item}
					</WatcherItem>
				</For>
			</div>
		)
	}
}| 参数 | 说明 | 类型 | 默认值 | 是否必传 | 
|---|---|---|---|---|
| wrap | 滚动容器 | DOM原生节点 | 
- | yes | 
| monaId | 当页面内存在多个需要监听的容器时,需要设置唯一的id,并与被监听的WatcherItem的属性monaId保持统一 | 
String | 
- | - | 
| bottomEmit | 滚动距离底部的触发距离 | Number | 
0 | 
no | 
| initEmit | 初始化是否需要触发一次 | Boolean | 
true | 
no | 
| 参数 | 说明 | 类型 | 默认值 | 可选项 | 
|---|---|---|---|---|
| onWatcher | 触发之后的回调 | Function | 
- | - | 
| monaId | 当页面内存在多个需要监听的容器时,需要设置唯一的id,并与初始化的实例的属性monaId保持统一 | 
String | 
- | - | 
| className | className属性 | String | 
- | - | 
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