微信小程序实现点击效果

// pages/test/test.js
Page({
 containerTap: function (res) {
 var that = this
 var x = res.touches[0].pageX;
 var y = res.touches[0].pageY + 85;
 this.setData({
 rippleStyle: ''
 });
 setTimeout(function () {
 that.setData({
 rippleStyle: 'top:' + y + 'px;left:' + x + 'px;-webkit-animation: ripple 0.4s linear;animation:ripple 0.4s linear;'
 });
 }, 200)
 },
})

<view class="ripple" style="{{rippleStyle}}"></view>
<view class="container" bindtouchstart="containerTap"></view>

page{height:100%}
.container{
 width:100%;
 height:100%;
 overflow: hidden
}
.ripple {
 background-color:aquamarine;
 border-radius: 100%;
 height:10px;
 width:10px;
 margin-top: -90px;
 position: absolute;
 
 overflow: hidden
}
@-webkit-keyframes ripple {
 100% {
 webkit-transform: scale(12);
 transform: scale(12);
 background-color: transparent;
 }
}