这篇文章主要讲解了vue滑动吸顶及锚点定位的用法,内容清晰明了,对此有兴趣的小伙伴可以学习一下,相信大家阅读完之后会有帮助。

Vue项目中需要实现滑动吸顶以及锚点定位功能。template代码如下:

<template><div class="main"> <div id='menu'> <ul> <li v-for="item in tabList" @click='clickTab'></li> </ul> </div> <div id='div1'></div> <div id='div2'></div> <div id='div3'></div></div> </template>

(1)滑动吸顶:

监听scroll事件,获取页面的滚动距离,一旦滚动距离大于目标值,实现滑动吸顶功能。

public isFixed = false;public mounted() { this.menuTop = (document.getElementById('menu') as any).offsetTop; window.addEventListener('scroll', this.handleScroll); }public handleScroll() { const scrollTop = document.documentElement.scrollTop || document.body.scrollTop; // 获取滑动距离 if (scrollTop < this.menuTop ) { this.isFixed = false; } else { this.isFixed = true; // 设置fixed定位 } }public destroyed() { window.removeEventListener('scroll', this.handleScroll);}

(2)锚点定位。点击tab,设置页面滚动距离。

public clickTab(index: number) { this.activeIndex = index; this.isFixed = true; const menuHeight= (document.getElementById('menu') as any).offsetHeight; const div1= (document.getElementById('div1') as any).offsetTop; const div2= (document.getElementById('div2') as any).offsetTop; const div3= (document.getElementById('div3') as any).offsetTop; const div4= (document.getElementById('div4') as any).offsetTop; switch (index) { case 0: document.body.scrollTop = document.documentElement.scrollTop = div1 - menuHeight; break; case 1: document.body.scrollTop = document.documentElement.scrollTop = div2 - menuHeight; break; case 2: document.body.scrollTop = document.documentElement.scrollTop = div3 - menuHeight; break; case 3: document.body.scrollTop = document.documentElement.scrollTop = div4 - menuHeight; break; default: document.body.scrollTop = document.documentElement.scrollTop = div1- menuHeight; } }

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