最近刚结束了一个vue项目,项目中发现了自己很多问题,例如,看到功能就想要使用插件,(⊙o⊙)…,这样是肯定不行呀,哎,用插件可以,自己也得会写呀,现在就记录一下一个不错的滚动加载数据。
1.页面布局(重点是 class="listWrapper" 以及 class="list")
<div class="listWrapper" ref="list_c">
<ul class="list" v-if="collectlist && collectlist.length>0" ref="list">
<li v-for="(item,index) of collectlist" :key="index">
<router-link :to="{name:'detail',query:{goods_sku_id:item.goods_sku_id}}">
<div class="picture">
<img :src="item.image">
</div>
<div class="info-content">
<p class="pro-tit">{{item.name}}</p>
<p class="price">
<span>¥{{item.price}}</span>
<span class="old-price">¥{{item.ot_price}}</span>
</p>
<p class="count">已售{{item.sales_num}}件</p>
</div>
</router-link>
<div class="collection-delete" @click="delect(item)"></div>
</li>
</ul>
</div>
2.样式
.listWrapper { position: absolute; top: 0.88rem; 100%; bottom: 0; overflow-y: auto; } .list { background-color: #fff; }
3.js
data数据
data() { return { page: 1, pagesize: 8, collectlist: [], canscroll: true, activeisload: true }; }
在mounted钩子中添加监听器(addEventListener)
mounted() { let list_c = this.$refs.list_c; list_c.addEventListener("scroll", () => { if (this.canscroll) { //是否具有触发条件 let scroll_top = list_c.scrollTop; let list = this.$refs.list; let list_height = parseInt(getComputedStyle(list).height); let c_height = parseInt(getComputedStyle(list_c).height); if (list_height - (scroll_top + c_height) < 200) { this.canscroll = false; //锁定滚动触发条件 if (this.activeisload) { this.page++; this.getCollect(); } else { console.log("已加载完所有已收藏的商品"); } } } }); }
请求接口数据(this.$post是封装的方法,自行代入实际场景)
getCollect: function() { this.$post(url, { page: this.page, pagesize: this.pagesize }) .then(res => { if (res.code == 200) { if (res.data.length) { this.collectlist = this.collectlist.concat(res.data); if (res.data.length < this.pagesize) { this.activeisload = false; console.log("已加载完"); } else { this.canscroll = true; } } } }) .catch(); },