Vue 仿QQ左滑删除功能(非原创)

时间:2022-05-12 15:50:42

非原创,摘选来源:http://www.jb51.net/article/136221.htm

废话不多说,相当实用,先记录。

Html代码:

<div class="container">
<div class="page-title">滑动组件</div>
<ul>
<li class="list-item " v-for="(item,index) in list " data-type="0">
<div class="list-box" @touchstart.capture="touchStart" @touchend.capture="touchEnd" @click="skip">
<img class="list-img" :src="item.imgUrl" alt="">
<div class="list-content">
<p class="title">{{item.title}}</p>
<p class="tips">{{item.tips}}</p>
<p class="time">{{item.time}}</p>
</div>
</div>
<div class="delete" @click="deleteItem" :data-index="index">删除</div>
</li>
</ul>
</div>

注意:这里的数据全是本地 mock 的~

Css样式代码:

.page-title{
text-align: center;
font-size: 17px;
padding: 10px 15px;
position: relative;
}
.page-title:after{
content: " ";
position: absolute;
left:;
bottom:;
right:;
height: 1px;
border-bottom: 1px solid #ccc;
color: #ccc;
-webkit-transform-origin: 0 100%;
transform-origin: 0 100%;
-webkit-transform: scaleY(0.5);
transform: scaleY(0.5);
z-index:;
}
.list-item{
position: relative;
height: 1.6rem;
-webkit-transition: all 0.2s;
transition: all 0.2s;
}
.list-item[data-type="0"]{
transform: translate3d(0,0,0);
}
.list-item[data-type="1"]{
transform: translate3d(-2rem,0,0);
}
.list-item:after{
content: " ";
position: absolute;
left: 0.2rem;
bottom:;
right:;
height: 1px;
border-bottom: 1px solid #ccc;
color: #ccc;
-webkit-transform-origin: 0 100%;
transform-origin: 0 100%;
-webkit-transform: scaleY(0.5);
transform: scaleY(0.5);
z-index:;
}
.list-box{
padding: 0.2rem;
background: #fff;
display: flex;
align-items: center;
-webkit-box-sizing: border-box;
box-sizing: border-box;
justify-content: flex-end;
position: absolute;
top:;
right:;
bottom:;
left:;
font-size:;
}
.list-item .list-img{
display: block;
width: 1rem;
height: 1rem;
}
.list-item .list-content{
padding: 0.1rem 0 0.1rem 0.2rem;
position: relative;
flex:;
flex-direction: column;
align-items: flex-start;
justify-content: center;
overflow: hidden;
}
.list-item .title{
display: block;
color: #333;
overflow: hidden;
font-size: 15px;
font-weight: bold;
text-overflow: ellipsis;
white-space: nowrap;
}
.list-item .tips{
display: block;
overflow: hidden;
font-size: 12px;
color: #999;
line-height: 20px;
text-overflow: ellipsis;
white-space: nowrap;
}
.list-item .time{
display: block;
font-size: 12px;
position: absolute;
right:;
top: 0.1rem;
color: #666;
}
.list-item .delete{
width: 2rem;
height: 1.6rem;
background: #ff4949;
font-size: 17px;
color: #fff;
text-align: center;
line-height: 1.6rem;
position: absolute;
top:;
right: -2rem;
}

这是核心的样式代码,还有部分样式重置代码放在了 App.vue 里,通过计算根节点 html 的字体大小的脚本放在了 index.html 中~

js代码:

export default{
name: 'index',
data () {
return {
list : [
  {
    title : 'Chrome更新了' ,
    imgUrl : './static/images/Chrome.png' ,
    tips : '不再支持Flash视频播放' ,
    time : '上午 8:30'
  },
  {
    title : '电影新资讯' ,
    imgUrl : './static/images/Sina.png' ,
    tips : '电影《红海行动》上映以来票房暴涨,很多国人表示对国产电影有了新的改观' ,
    time : '上午 12:00'
  },
  {
    title : '聚焦两会·共筑中国梦' ,
    imgUrl : './static/images/video.png' ,
    tips : '两会故事' ,
    time : '下午 17:45'
  },
  {
    title : '微信团队' ,
    imgUrl : './static/images/Wechat.png' ,
    tips : '您的帐号有异常登录,如非本人操作,请及时修改密码' ,
    time : '昨天'
  }
  ],
startX : 0 ,
endX : 0 ,
}
},
methods : {
//跳转
skip(){
if( this.checkSlide() ){
  this.restSlide();
}else{
  alert('You click the slide!')
}
},
//滑动开始
touchStart(e){
  // 记录初始位置
  this.startX = e.touches[0].clientX;
},
//滑动结束
touchEnd(e){
// 当前滑动的父级元素
  let parentElement = e.currentTarget.parentElement;
  // 记录结束位置
  this.endX = e.changedTouches[0].clientX;
// 左滑
  if( parentElement.dataset.type == 0 && this.startX - this.endX > 30 ){
    this.restSlide();
    parentElement.dataset.type = 1;
  }
// 右滑
  if( parentElement.dataset.type == 1 && this.startX - this.endX < -30 ){
    this.restSlide();
    parentElement.dataset.type = 0;
  }
  this.startX = 0;
  this.endX = 0;
},
//判断当前是否有滑块处于滑动状态
checkSlide(){
  let listItems = document.querySelectorAll('.list-item');
  for( let i = 0 ; i < listItems.length ; i++){
    if( listItems[i].dataset.type == 1 ) {
      return true;
  }
  }
  return false;
},
//复位滑动状态
restSlide(){
  let listItems = document.querySelectorAll('.list-item');
// 复位
  for( let i = 0 ; i < listItems.length ; i++){
    listItems[i].dataset.type = 0;
  }
},
//删除
deleteItem(e){
  // 当前索引
  let index = e.currentTarget.dataset.index;
  // 复位
  this.restSlide();
  // 删除
  this.list.splice(index,1);
  }
}
}

综上,亲测可用,叽叽叽叽叽叽~