vue 返回滚动位置

 

list页面要使用keep-alive,这里再app.vue里判断

app.vue

    <keep-alive>
      <router-view v-if="$route.meta.keepAlive"></router-view>
    </keep-alive>
    <router-view v-if="!$route.meta.keepAlive"></router-view>

 

router.js

使用history模式 scrollBehavior里是具体代码,一开始是在scrollBehavior里获取

 document.documentElement.scrollTop || document.body.scrollTop;但是第一次进入页面的时候滚动页面高度无法获取,所以就在list.vue里
beforeRouteLeave方法里设置高度,然后就可以在scrollBehavior return相应的高度了

export default new Router({
  mode: "history",
  base: "/m/",
  scrollBehavior(to, from, savedPosition) {
  return { x: 0, y: to.meta.savedPosition || 0 };
},
routes: [
  {
    path: "/",
    name: "list",
    component: List,
    meta: { keepAlive: true }
  } 
]
});

 

list.vue

    beforeRouteLeave(to, from, next) {
      let position = document.documentElement.scrollTop || document.body.scrollTop;
      from.meta.savedPosition = position;
      next()
    },

 

posted @ 2018-04-18 19:05  sunniejs  阅读(2858)  评论(1编辑  收藏  举报