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本文实例为大家分享了微信小程序之卡片层叠滑动效果的具体代码,供大家参考,具体内容如下
代码:
js:
// index/gun/jsSwiper2/jsSwiper2.js Page({ /** * 页面的初始数据 */ data: { startX: 0, endX: 0, iCenter: 3, datas: [{ id: 1, zIndex: 2, opacity: 0.2, left: 40, iamge: "../../images/1.jpg", animation: null }, { id: 2, zIndex: 4, opacity: 0.4, left: 80, iamge: "../../images/2.jpg", animation: null }, { id: 3, zIndex: 6, opacity: 0.6, left: 120, iamge: "../../images/3.jpg", animation: null }, { id: 4, zIndex: 8, opacity: 1, left: 160, iamge: "../../images/4.jpg", animation: null }, { id: 5, zIndex: 6, opacity: 0.6, left: 200, iamge: "../../images/5.jpg", animation: null }, { id: 6, zIndex: 4, opacity: 0.4, left: 240, iamge: "../../images/6.jpg", animation: null }, { id: 7, zIndex: 2, opacity: 0.2, left: 280, iamge: "../../images/7.jpg", animation: null }, ], order: [] }, /** * 生命周期函数--监听页面加载 */ onLoad: function (options) { this.__set__(); this.move(); }, /** * 生命周期函数--监听页面初次渲染完成 */ onReady: function () { }, /** * 生命周期函数--监听页面显示 */ onShow: function () { }, /** * 生命周期函数--监听页面隐藏 */ onHide: function () { }, /** * 生命周期函数--监听页面卸载 */ onUnload: function () { }, /** * 页面相关事件处理函数--监听用户下拉动作 */ onPullDownRefresh: function () { }, /** * 页面上拉触底事件的处理函数 */ onReachBottom: function () { }, /** * 用户点击右上角分享 */ onShareAppMessage: function () { }, move: function () { var datas = this.data.datas; /*图片分布*/ for (var i = 0; i < datas.length; i++) { var data = datas[i]; var animation = wx.createAnimation({ duration: 200 }); animation.translateX(data.left).step(); this.setData({ ["datas[" + i + "].animation"]: animation.export(), ["datas[" + i + "].zIndex"]: data.zIndex, ["datas[" + i + "].opacity"]: data.opacity, }) } }, /**左箭头 */ left: function () { // var last = this.data.datas.pop(); //获取数组的最后一个 this.data.datas.unshift(last);//放到数组的第一个 var orderFirst = this.data.order.shift(); this.data.order.push(orderFirst); this.move(); }, /** */ right: function () { var first = this.data.datas.shift(); //获取数组的第一个 this.data.datas.push(first);//放到数组的最后一个位置 var orderLast = this.data.order.pop(); this.data.order.unshift(orderLast); this.move(); }, /**点击某项 */ choose: function (e) { var that = this; var id = e.currentTarget.dataset.id; var order = that.data.order; var index = 0; for (var i = 0; i < order.length; i++) { if (id == order[i]) { index = i; break; } } if (index < that.data.iCenter) { for (var i = 0; i < that.data.iCenter - index; i++) { this.data.datas.push(this.data.datas.shift()); //获取第一个放到最后一个 this.data.order.unshift(this.data.order.pop()); // this.right() } } else if (index > that.data.iCenter) { for (var i = 0; i < index - that.data.iCenter; i++) { this.data.datas.unshift(this.data.datas.pop()); //获取最后一个放到第一个 this.data.order.push(this.data.order.shift()); // this.left(); } } this.move(); }, /**新的排列复制到新的数组中 */ __set__: function () { var that = this; var order = that.data.order; var datas = that.data.datas; for (var i = 0; i < datas.length; i++) { that.setData({ ["order[" + i + "]"]: datas[i].id }) } }, //手指触发开始移动 moveStart: function (e) { console.log(e); var startX = e.changedTouches[0].pageX; this.setData({ startX: startX }); }, //手指触摸后移动完成触发事件 moveItem: function (e) { console.log(e); var that = this; var endX = e.changedTouches[0].pageX; this.setData({ endX: endX }); //计算手指触摸偏移剧距离 var moveX = this.data.startX - this.data.endX; //向左移动 if (moveX > 20) { this.left(); } if (moveX < -20) { this.right(); } }, })
wxml:
<view class="teachers_banner"> <view class="container clearfix teachers_b"> <view class="slide" id="slide" bindtouchstart='moveStart' bindtouchend='moveItem'> <block wx:for="{{datas}}"> <li animation="{{item.animation}}" style="z-index: {{item.zIndex}} ;opacity:{{item.opacity}};" bindtap="choose" data-id="{{item.id}}"> <image src="{{item.iamge}}"></image> </li> </block> </view> </view> </view>
wxss:
.teachers_banner { width: 100%; height: 650px; background-size: cover; position: relative; overflow: hidden; } .teachers_b { position: relative; margin-top: 80px; } #slide { margin: 0 auto; width: 100%; height: 350px; position: relative; } image { width: 400rpx; height: 550rpx; } #slide li { position: absolute; width: 400rpx; display: -webkit-box; display: -webkit-flex; display: flex; align-items: flex-start; -webkit-box-align: flex-start; -webkit-align-items: flex-start; overflow: hidden; box-shadow: 0 0 20px #1d374d; } #slide li img { width: 100%; height: 100%; } .slide_right { padding: 40px; -webkit-box-flex: 1; -webkit-flex: 1; flex: 1; min-width: 0; } .slide_right dl { padding-top: 10px; } .arrow .prev, .arrow .next { position: absolute; width: 50px; top: 38%; z-index: 9; font: 700 96px 'simsun'; opacity: 0.3; color: #fff; cursor: pointer; }
效果:
1.左右滑动时,向相应方向移动一个卡片位置;
2.点击某一项时,将点击项位置移动到中间位置;
本文微信小程序实现卡片层叠滑动效果到此结束。真正的强者不是没有眼泪的人而是含着眼泪奔跑的人小编再次感谢大家对我们的支持!