廢話不多說，直接上程式碼： js:

var app = getApp()

Page({

  data: {

    items: [],

    startX: 0, //開始座標

    startY: 0

  },

  onLoad: function () {

    for (var i = 0; i < 10; i++) {

      this.data.items.push({

        content: i + " 向左滑動刪除哦,向左滑動刪除哦,向左滑動刪除哦,向左滑動刪除哦,向左滑動刪除哦",

        isTouchMove: false //預設全隱藏刪除

      })

    }

    this.setData({

      items: this.data.items

    })

  },

  //手指觸控動作開始 記錄起點X座標

  touchstart: function (e) {

    //開始觸控時 重置所有刪除

    this.data.items.forEach(function (v, i) {

      if (v.isTouchMove)//只操作為true的

        v.isTouchMove = false;

    })

    this.setData({

      startX: e.changedTouches[0].clientX,

      startY: e.changedTouches[0].clientY,

      items: this.data.items

    })

  },

  //滑動事件處理

  touchmove: function (e) {

    var that = this,

      index = e.currentTarget.dataset.index,//當前索引

      startX = that.data.startX,//開始X座標

      startY = that.data.startY,//開始Y座標

      touchMoveX = e.changedTouches[0].clientX,//滑動變化座標

      touchMoveY = e.changedTouches[0].clientY,//滑動變化座標

      //獲取滑動角度

      angle = that.angle({ X: startX, Y: startY }, { X: touchMoveX, Y: touchMoveY });

    that.data.items.forEach(function (v, i) {

      v.isTouchMove = false

      //滑動超過30度角 return

      if (Math.abs(angle) > 30) return;

      if (i == index) {

        if (touchMoveX > startX) //右滑

          v.isTouchMove = false

        else //左滑

          v.isTouchMove = true

      }

    })

    //更新資料

    that.setData({

      items: that.data.items

    })

  },

  /**

  * 計算滑動角度

  * @param {Object} start 起點座標

  * @param {Object} end 終點座標

  */

  angle: function (start, end) {

    var _X = end.X - start.X,

      _Y = end.Y - start.Y

    //返回角度 /Math.atan()返回數字的反正切值

    return 360 * Math.atan(_Y / _X) / (2 * Math.PI);

  },

  //刪除事件

  del: function (e) {

    this.data.items.splice(e.currentTarget.dataset.index, 1)

    this.setData({

      items: this.data.items

    })

  }

})



wxss:

.touch-item {

    font-size: 14px;

    display: flex;

    justify-content: space-between;

    border-bottom:1px solid #ccc;

    width: 100%;

    overflow: hidden;

}

.content {

    width: 100%;

    padding: 10px;

    line-height: 22px;

    margin-right:0;

    -webkit-transition: all 0.4s;

    transition: all 0.4s;

    -webkit-transform: translateX(270px);

    transform: translateX(270px);

    margin-left:-270px;

}

.del {

    background-color: orangered;

    width: 90px;

    display: flex;

    flex-direction: column;

    align-items: center;

    justify-content: center;

    color: #fff;

    -webkit-transform: translateX(270px);

    transform: translateX(270px);

    -webkit-transition: all 0.4s;

    transition: all 0.4s;

}

.details {

    background-color: orangered;

    width: 90px;

    display: flex;

    flex-direction: column;

    align-items: center;

    justify-content: center;

    color: #fff;

    -webkit-transform: translateX(270px);

    transform: translateX(270px);

    -webkit-transition: all 0.4s;

    transition: all 0.4s;

}

.touch-move-active .content,

.touch-move-active .del {

    -webkit-transform: translateX(0);

    transform: translateX(0);

}

.touch-move-active .content,

.touch-move-active .details {

    -webkit-transform: translateX(0);

    transform: translateX(0);

}