vue消息无缝滚动

HTML:

<div class="marquee">

  <ul class="nameList" :class="{anim:animate==true}">
    <li v-for='(item,index) in marqueeList' :key="index">{{item.name}}</li>

  </ul>
</div>

script:

export default {
  data() {
    return {
      animate: false,
      marqueeList: [ 

        {name: "抖音"},

        {name: "虎牙"},

        {name: "淘宝"},

        {name: "京东"},
        {name: "微博"},

        {name: "微信"}
      ]

    };

  },

  created() {
    if (this.marqueeList.length > 2) {
      setInterval(this.showMarquee, 2000);
    }
  }, 

  methods: {
    showMarquee() {
      this.animate = true;
      setTimeout(() => {
        this.marqueeList.push(this.marqueeList[0]);
        this.marqueeList.shift();
        this.animate = false;// 这个地方如果不把animate 取反会出现消息回滚的现象,此时把ul 元素的过渡属性取消掉就可以完美实现无缝滚动的效果了

      }, 1000);
    },

  }

}

style:

.marquee
   300px;
  height: 60px;
  line-height: 30px;
  overflow: hidden;
  padding-left: 30px;
  border: 1px solid black;
  transition: all .5s;
.anim
  transition: all 1s;
  margin-top: -30px;
.nameList li
  list-style: none;
  line-height: 30px;
  height: 30px;

原文地址:https://www.cnblogs.com/CMing/p/9817228.html