uniapp实现红包动画效果（vue3）

效果演示

首先安装CSS动画库animate.css依赖

yarn add animate.css

打开main.ts文件引入

import 'animate.css'

这两张图片放入static文件夹下

用到的图片red1.png

用到的图片red2.png

红包整体主要分三部分 红包头部 中部 底部

显示红包恭喜您获得了100.00红包余额可去钱包查询开心收下

使用uni.createAnimation()创建动画实例并进行相关操作具体查看官方文档

import {ref,getCurrentInstance} from 'vue'import {onShow} from '@dcloudio/uni-app'const {proxy} = getCurrentInstance() as any//红包动画let red = ref(false) //红包显示 let redIndex = ref(0) //红包组件刷新onShow(() => {let animation = uni.createAnimation()proxy.animation = animation})//头部动画let redHead = ref({})function redHeadAnimation() {proxy.animation.translateY(-300).opacity(0).step({duration: 500,timingFunction: 'ease-in-out',})redHead.value = proxy.animation.export()redBottom.value = truesetTimeout(() => {redMidAnimation()}, 300)}//中部动画let redMid = ref({})function redMidAnimation() {proxy.animation.translateY(-120).opacity(1).step({duration: 500,timingFunction: 'ease-in-out',})redMid.value = proxy.animation.export()}//红包底部按钮显示let redBottom = ref(false)//重置红包function redBagAnimationRenew() {red.value = falseredBottom.value = falseredHead.value = {}redMid.value = {}redIndex.value++}

除了红包底部 头部和中部需要定位

.cover {position: fixed;left: 0;top: 0;bottom: 0;right: 0;background: rgba(000, 000, 000, 0.5);display: flex;align-items: center;justify-content: center;}.redBig {position: relative;display: flex;flex-direction: column;align-items: center;}.redBigHead {position: absolute;z-index: 2;image {width: 550rpx;height: 440rpx;}}.redBigMid {width: 508rpx;height: 350rpx;background-color: #fff;border-radius: 24rpx;display: flex;flex-direction: column;align-items: center;color: #FF4545;position: absolute;z-index: 0;margin-top: 260rpx;opacity: 0;.text1 {margin-top: 20rpx;font-size: 32rpx;}.text2 {margin-top: 30rpx;font-size: 70rpx;}.text3 {margin-top: 30rpx;}}.redBigBottom {width: 550rpx;height: 331rpx;background-image: url('../../static/red2.png');background-size: 100% 100%;margin-top: 280rpx;z-index: 1;.button {background: linear-gradient(to bottom, #FEE3AD 50%, #FEB05C);color: #BC0D0D;margin-left: 84rpx;margin-right: 84rpx;padding-top: 30rpx;padding-bottom: 30rpx;border-radius: 100rpx;text-align: center;margin-top: 150rpx;}}