微信小程序rotateZ实现卡片翻转

1.实现效果

slide-image.gif

2.实现原理

css的filte：hue-rotate(deg)
给图像应用色相旋转。"angle"一值设定图像会被调整的色环角度值。值为0deg，则图像无变化。若值未设置，默认值是0deg。该值虽然没有最大值，超过360deg的值相当于又绕一圈。

css的transform：rotateZ(deg)
rotateZ(angle) 定义沿着 Z 轴的 3D 旋转。

• 动态的设置hue-rotate和rotateZ角度，实现页面切换，并改变背景颜色
• 同时设置图片hue-rotate与父元素的相反，做到不影响子元素的滤镜

3.实现代码

<view class="page" style="filter:hue-rotate({{rotation}}deg)">
  <view class="prev" catchtap="toPrev"></view>
  <view class="next" catchtap="toNext"></view>
  <view class="stage" style="transform:rotateZ({{rotation}}deg)">
    <view wx:for="{{list}}" wx:key="index" class="page-item">
      <image src="https://i.postimg.cc/qRRLS16Q/susu0.jpg" style="filter:hue-rotate({{-rotation}}deg)" />
      <view class="title">测试</view>
      <view style="margin-top:30px">{{item.title}}</view>
    </view>
  </view>
</view>

.page {
  position: relative;
  z-index: 11;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  background-image: linear-gradient(135deg, #ec8845 0%, #c495f3 100%);
  transition: -webkit-filter 500ms cubic-bezier(0.455, 0.03, 0.515, 0.955);
  transition: filter 500ms cubic-bezier(0.455, 0.03, 0.515, 0.955);
  transition: filter 500ms cubic-bezier(0.455, 0.03, 0.515, 0.955), -webkit-filter 500ms cubic-bezier(0.455, 0.03, 0.515, 0.955);
}


.next {
  z-index: 11;
  color: #fff;
  height: 4vh;
  margin-top: -2vh;
  opacity: 0.2;
  position: absolute;
  top: 50%;
  -webkit-transform: scaleX(0.8);
  transform: scaleX(0.8);
  transition: opacity 200ms linear;
  width: 4vh;
  -webkit-transform: rotate(-45deg);
  border: solid #fff;
  border-width: 0 3px 3px 0;
  display: inline-block;
  padding: -1px;
  right: 30px;
}

.prev {
  z-index: 11;
  color: #fff;
  height: 4vh;
  margin-top: -2vh;
  opacity: 0.2;
  position: absolute;
  top: 50%;
  -webkit-transform: scaleX(0.8);
  transform: scaleX(0.8);
  transition: opacity 200ms linear;
  width: 4vh;
  -webkit-transform: rotate(135deg);
  border: solid #fff;
  border-width: 0 3px 3px 0;
  display: inline-block;
  padding: -1px;
  left: 30px;
}

.stage {
  width: 750rpx;
  height: 100vh;
  left: 0;
  position: absolute;
  bottom: 0;
  -webkit-transform-origin: 50% 150%;
  transform-origin: 50% 150%;
  -webkit-transform: translate3d(0, 0, 0);
  transform: translate3d(0, 0, 0);
  transition: -webkit-transform 500ms cubic-bezier(0.455, 0.03, 0.515, 0.955);
  transition: transform 500ms cubic-bezier(0.455, 0.03, 0.515, 0.955);
  transition: transform 500ms cubic-bezier(0.455, 0.03, 0.515, 0.955), -webkit-transform 500ms cubic-bezier(0.455, 0.03, 0.515, 0.955);

}

.page-item {
  bottom: 0;
  left: 0;
  height: 100%;
  padding: 0 5vh;
  position: absolute;
  text-align: center;
  -webkit-transform-origin: 50% 150%;
  transform-origin: 50% 150%;
  width: 100%;
  color: #fff;
  box-sizing: border-box;
}

.page-item:nth-child(2) {
  -webkit-transform: rotateZ(90deg);
  transform: rotateZ(90deg);
}

.page-item:nth-child(3) {
  -webkit-transform: rotateZ(180deg);
  transform: rotateZ(180deg);
}

.page-item:nth-child(4) {
  -webkit-transform: rotateZ(270deg);
  transform: rotateZ(270deg);
}

.title {
  font-size: 30px;
  text-align: center;
  margin-top: 30px;
}

.page-item image {
  border-radius: 50%;
  width: 50px;
  height: 50px;
  margin-top: 400px;
}

Page({
  data: {
    rotation: 0,
    list: [
      {
        color: "pink",
        title: "welcomwe to susu1",
      },
      {
        color: "pink",
        title: "welcomwe to bbq2",
      },
      {
        color: "pink",
        title: "welcomwe to xx3",
      },
      {
        color: "pink",
        title: "welcomwe to yyy4",
      },
    ]
  },

  ...
  ...

})

4.完整代码，关注公众号 苏苏的bug，更多小程序demo，尽在苏苏的码云如果对你有帮助，欢迎你的star+订阅！