| vant list组件滚动保留滚动条位置，需结合keepAlive使用，分享此篇，供大家参考。 1、保存位置的前提是用的keepAlive组件来做缓存，app.vue代码 <template> <div id="app"> <keep-alive> <router-view v-if='$route.meta.keepAlive'/> </keep-alive> <router-view v-if='!$route.meta.keepAlive'/> </div></template> 2、在路由文件router.js，给每个路由meta添加scrollTop和keepAlive { path: '/home', name: 'home', component: resolve => require(['@/views/home/index.vue'], resolve), meta: { title: '首页', index: 1, keepAlive: true, scrollTop: 0 } }, { path: '/classify', name: 'classify', component: resolve => require(['@/views/classify/index.vue'], resolve), meta: { title: '分类', index: 1, keepAlive: true, scrollTop: 0 } }, { path: '/shopping', name: 'shopping', component: resolve => require(['@/views/shopping/index.vue'], resolve), meta: { title: '购物车', index: 1, keepAlive: true, scrollTop: 0 } }, { path: '/detail', name: 'detail', component: resolve => require(['@/views/detail/index.vue'], resolve), meta: { title: '详情', index: 2, // keepAlive: true, // scrollTop: 0 } },3、然后在main.js,记录滚动条的位置 router.beforeEach((to, from, next) => { if (from.meta.keepAlive) { const $wrapper = document.querySelector('.app-wrapper'); // 列表的外层容器 注意找到滚动的盒子 const scrollTop = $wrapper ? $wrapper.scrollTop : 0; console.log('scrollTop=', scrollTop) from.meta.scrollTop = scrollTop; } next();});
4、最后在需要记录保留滚动条位置的地方获取通过activated（这个函数每次进入页面都会执行，只有结合使用keepAlive组件才有效）来获取scrollTop activated () { const scrollTop = this.$route.meta.scrollTop; const $wrapper = document.querySelector('.app-wrapper'); if (scrollTop && $wrapper) { $wrapper.scrollTop = scrollTop; } },比如缓存了某些页面也不想随之滚动，则把scrollTop置0即可； activated() { const $wrapper = document.querySelector(".app-wrapper"); $wrapper.scrollTop = 0; },注意，页面滚动的话，其他页面有滚动条的也会随之滚动，可以对其他页面里面处理，或者判断是否从详情页到列表页来判断是否缓存位置，如果不是，则回到顶部，但是注意路由钩子函数this的使用；
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