vue swipeCell滑动单元格(仿微信)的实现示例

抽离Vant weapp滑动单元格代码改造而成

带有拉动弹性回弹效果

demo展示：https://littaotao.github.io/me/index（切换为浏览器调试的手机模式并且再次刷新一次）

touch.js

import Vue from 'vue';
export const isServer=false;
const MIN_DISTANCE = 10;
const TouchMixinData = {
 startX: Number,
 startY: Number,
 deltaX: Number,
 deltaY: Number,
 offsetX: Number,
 offsetY: Number,
 direction: String
};

function getDirection(x,y) {
 if (x > y && x > MIN_DISTANCE) {
 return 'horizontal';
 }

 if (y > x && y > MIN_DISTANCE) {
 return 'vertical';
 }

 return '';
}


export let supportsPassive = false;

export function on(
 target,
 event,
 handler,
 passive = false
) {
 if (!isServer) {
 target.addEventListener(
  event,
  handler,
  supportsPassive ? { capture: false, passive } : false
 );
 }
}

export const TouchMixin = Vue.extend({
 data() {TouchMixinData
 return { direction: '' } ;
 },

 methods: {
 touchStart() {
  this.resetTouchStatus();
  this.startX = event.touches[0].clientX;
  this.startY = event.touches[0].clientY;
 },

 touchMove() {
  const touch = event.touches[0];
  this.deltaX = touch.clientX - this.startX;
  this.deltaY = touch.clientY - this.startY;
  this.offsetX = Math.abs(this.deltaX);
  this.offsetY = Math.abs(this.deltaY);
  this.direction =
  this.direction || getDirection(this.offsetX, this.offsetY);
 },

 resetTouchStatus() {
  this.direction = '';
  this.deltaX = 0;
  this.deltaY = 0;
  this.offsetX = 0;
  this.offsetY = 0;
 },

 // avoid Vue 2.6 event bubble issues by manually binding events
 // https://github.com/youzan/vant/issues/3015
 bindTouchEvent( el ) {
  const { onTouchStart, onTouchMove, onTouchEnd } = this;

  on(el, 'touchstart', onTouchStart);
  on(el, 'touchmove', onTouchMove);

  if (onTouchEnd) {
  on(el, 'touchend', onTouchEnd);
  on(el, 'touchcancel', onTouchEnd);
  }
 },
 },
});

引入即可！！！

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