vue中进入详情页记住滚动位置的方法(keep-alive)

{ 
path: ‘/scrollDemo', 
name: ‘scrollDemo', 
meta: { 
keepAlive: true // 需要缓存 
}, 
component: resolve => { require([‘../view/scrollDemo.vue'], resolve) } 
}

  <keep-alive>  // 缓存组件跳转的页面
    <router-view v-if="$route.meta.keepAlive" class="ui-view" transition-mode="out-in"></router-view>
  </keep-alive> 

 // 非缓存组件跳转页面
 <router-view v-if="!$route.meta.keepAlive" class="ui-view" transition-mode="out-in"></router-view>

window.addEventListener('scroll', this.handleScroll);

   handleScroll () {
    this.scroll = document.documentElement && document.documentElement.scrollTop

    console.log(this.scroll)
   }

   activated() {
     if(this.scroll > 0){
      window.scrollTo(0, this.scroll);
      this.scroll = 0;
      window.addEventListener('scroll', this.handleScroll);
     }
  }

  deactivated(){
   window.removeEventListener('scroll', this.handleScroll);
  }