Vue.js移动端左滑删除组件的实现代码

<template>
 <div class="delete">
 <div class="slider">
 <div class="content" 
 @touchstart='touchStart'
 @touchmove='touchMove'
 @touchend='touchEnd'
 :style="deleteSlider"
 >
 <!-- 插槽中放具体项目中需要内容 --> 
 <slot></slot>
 </div>
 <div class="remove" ref='remove'>
 删除
 </div>
 </div>
 
 </div>
</template>

<style scoped lang="less" scoped>
 .slider{
 width: 100%;
 height:200px;
 position: relative;
 user-select: none;
 .content{
 position: absolute;
 left: 0;
 right: 0;
 top: 0;
 bottom: 0;
 background:green;
 z-index: 100;
 // 设置过渡动画
 transition: 0.3s;
 
 }
 .remove{
 position: absolute;
 width:200px;
 height:200px;
 background:red;
 right: 0;
 top: 0;
 color:#fff;
 text-align: center;
 font-size: 40px;
 line-height: 200px;
 }
 }
 
</style>

<script type="text/ecmascript-6">
 export default {
 data() {
 return {
 startX:0, //触摸位置
 endX:0, //结束位置
 moveX: 0, //滑动时的位置
 disX: 0, //移动距离
 deleteSlider: '',//滑动时的效果,使用v-bind:style="deleteSlider"
 }
 
 },
 methods:{
 touchStart(ev){
 ev= ev || event
 //tounches类数组，等于1时表示此时有只有一只手指在触摸屏幕
 
 if(ev.touches.length == 1){
 // 记录开始位置
 this.startX = ev.touches[0].clientX;
 }
 },
 touchMove(ev){
 ev = ev || event;
 //获取删除按钮的宽度，此宽度为滑块左滑的最大距离
 let wd=this.$refs.remove.offsetWidth;
 if(ev.touches.length == 1) {
 // 滑动时距离浏览器左侧实时距离
 this.moveX = ev.touches[0].clientX
 
 //起始位置减去 实时的滑动的距离，得到手指实时偏移距离
 this.disX = this.startX - this.moveX;
 console.log(this.disX)
 // 如果是向右滑动或者不滑动，不改变滑块的位置
 if(this.disX < 0 || this.disX == 0) {
 this.deleteSlider = "transform:translateX(0px)";
 // 大于0，表示左滑了，此时滑块开始滑动 
 }else if (this.disX > 0) {
 //具体滑动距离我取的是 手指偏移距离*5。
 this.deleteSlider = "transform:translateX(-" + this.disX*5 + "px)";
 
 // 最大也只能等于删除按钮宽度 
 if (this.disX*5 >=wd) {
 this.deleteSlider = "transform:translateX(-" +wd+ "px)";
 
 }
 }
 }
 },
 touchEnd(ev){
 ev = ev || event;
 let wd=this.$refs.remove.offsetWidth;
 if (ev.changedTouches.length == 1) {
 let endX = ev.changedTouches[0].clientX;
 
 this.disX = this.startX - endX;
 console.log(this.disX)
 //如果距离小于删除按钮一半,强行回到起点
 
 if ((this.disX*5) < (wd/2)) {
 
 this.deleteSlider = "transform:translateX(0px)";
 }else{
 //大于一半 滑动到最大值
 this.deleteSlider = "transform:translateX(-"+wd+ "px)";
 }
 }
 } 
 }
 }
</script>