实战项目名称：Vue九宫格抽奖
项目git地址：请点击访问
项目最终效果：@点击访问线上地址，欢迎关注收藏订阅专栏！！！
提示：该项目只用于个人实战，不应用于任何商业用途。
一、项目分享
- 第一步，既然是九宫格在线抽奖，那肯定先写好
grid宫格布局 - 第二步，定义相应的参数，比如转动次数，消耗积分等
- 第三步，
随机获得一个中奖位置，并返回进行下一步操作
项目提供基本框架和思路，中奖的规则可以按你自己的来，编写不易，点赞收藏本文章，是对我最大的支持！谢谢！！
下方为项目
最终效果（视频已更新）
基于Vue的九宫格在线抽奖
二、实战步骤
1. 编写基本布局
关键代码如下：
<div class="lottery">
<div class="lottery-item">
<div class="lottery-start">
<div class="box gray" v-if="isStart===0">
<p>活动未开始</p>
</div>
<div class="box" @click="startLottery" v-if="isStart===1">
<p><b>抽奖</b></p>
<p>消耗{
{
score}}积分</p>
</div>
<div class="box gray" v-if="isStart===2">
<p>活动已过期</p>
</div>
</div>
<ul>
<li v-for="(item,i) in list" :class="i==index?'on':''" :key="i">
<div class="box">
<p><img :src="item.img" alt /></p>
<p>{
{
item.title}}</p>
</div>
</li>
</ul>
</div>
</div>
2. 定义相应参数
3. 编写中奖弹窗提示信息
关键代码如下：
<!-- 中奖弹窗 -->
// 通过showToast参数控制弹窗的显示与隐藏
<div class="mask" v-if="showToast"></div> //遮罩层
<div class="lottery-alert" v-if="showToast">
<h1>恭喜您</h1>
<p><img src="../assets/images/j2.png" alt /></p>
<h2>获得{
{
list[index].title}}</h2>
<div class="btnsave" @click="showToast=false">确定</div>
</div>
4. 实现抽奖的关键代码
- 实现步骤就不一一详解了，代码上我会附上一些说明
methods: {
startLottery() {
if (!this.click) {
return }
this.startRoll();
},
// 开始转动
startRoll() {
this.times += 1 // 转动次数
this.oneRoll() // 转动过程调用的每一次转动方法，这里是第一次调用初始化
// 如果当前转动次数达到要求 && 目前转到的位置是中奖位置
if (this.times > this.cycle + 10 && this.prize === this.index) {
clearTimeout(this.timer) // 清除转动定时器，停止转动
this.prize = -1
this.times = 0
this.speed = 200
this.click = true;
var that = this;
// eslint-disable-next-line no-unused-vars
setTimeout(res => {
that.showToast = true;
}, 500)
} else {
if (this.times < this.cycle) {
this.speed -= 10 // 加快转动速度
} else if (this.times === this.cycle) {
const index = parseInt(Math.random() * 10, 0) || 0; // 随机获得一个中奖位置
this.prize = index; //中奖位置,可由后台返回
if (this.prize > 7) {
this.prize = 7 }
} else if (this.times > this.cycle + 10 && ((this.prize === 0 && this.index === 7) || this.prize === this.index + 1)) {
this.speed += 110
} else {
this.speed += 20
}
if (this.speed < 40) {
this.speed = 40 }
this.timer = setTimeout(this.startRoll, this.speed)
}
},
// 每一次转动
oneRoll() {
let index = this.index // 当前转动到哪个位置
const count = this.count // 总共有多少个位置
index += 1
if (index > count - 1) {
index = 0 }
this.index = index
},
}
三、源代码
代码如下：
<template>
<div class="lottery-box" id="app">
<h1 class="title">VUE九宫格抽奖</h1>
<div class="lottery">
<div class="lottery-item">
<div class="lottery-start">
<div class="box gray" v-if="isStart===0">
<p>活动未开始</p>
</div>
<div class="box" @click="startLottery" v-if="isStart===1">
<p><b>抽奖</b></p>
<p>消耗{
{
score}}积分</p>
</div>
<div class="box gray" v-if="isStart===2">
<p>活动已过期</p>
</div>
</div>
<ul>
<li v-for="(item,i) in list" :class="i==index?'on':''" :key="i">
<div class="box">
<p><img :src="item.img" alt /></p>
<p>{
{
item.title}}</p>
</div>
</li>
</ul>
</div>
</div>
<!-- 中奖弹窗 -->
<div class="mask" v-if="showToast"></div>
<div class="lottery-alert" v-if="showToast">
<h1>恭喜您</h1>
<p><img src="../assets/images/j2.png" alt /></p>
<h2>获得{
{
list[index].title}}</h2>
<div class="btnsave" @click="showToast=false">确定</div>
</div>
</div>
</template>
<script>
export default {
data() {
return {
isStart: 1,
score: 10, //消耗积分
list: [
{
img: 'https://joe.foshanlepin.com/lottery_draw/src/assets/img/j1.png', title: '谢谢参与' },
{
img: 'https://joe.foshanlepin.com/lottery_draw/src/assets/img/j2.png', title: '美女一个' },
{
img: 'https://joe.foshanlepin.com/lottery_draw/src/assets/img/j1.png', title: '宝马一辆' },
{
img: 'https://joe.foshanlepin.com/lottery_draw/src/assets/img/j2.png', title: '单车一辆' },
{
img: 'https://joe.foshanlepin.com/lottery_draw/src/assets/img/j1.png', title: '鸡蛋一蓝' },
{
img: 'https://joe.foshanlepin.com/lottery_draw/src/assets/img/j2.png', title: '500红包' },
{
img: 'https://joe.foshanlepin.com/lottery_draw/src/assets/img/j1.png', title: '靓号一个' },
{
img: 'https://joe.foshanlepin.com/lottery_draw/src/assets/img/j2.png', title: '鲜花一蓝' }
], //奖品1-9
index: -1, // 当前转动到哪个位置，起点位置
count: 8, // 总共有多少个位置
timer: 0, // 每次转动定时器
speed: 200, // 初始转动速度
times: 0, // 转动次数
cycle: 50, // 转动基本次数：即至少需要转动多少次再进入抽奖环节
prize: -1, // 中奖位置
click: true,
showToast: false, //显示中奖弹窗
}
},
mounted() {
},
methods: {
// 请看步骤4中的代码即可
}
}
</script>
<style >
* {
margin: 0px;
padding: 0px;
box-sizing: border-box;
}
body {
background: radial-gradient(49% 160%, #22b5ff 0, #3a72fa 100%);
font-size: 14px;
}
img {
border: 0px;
}
ul,
li {
list-style-type: none;
}
.lottery-box {
overflow: hidden;
}
.lottery-box .title {
text-align: center;
padding: 50px 0;
font-size: 18px;
color: #fff;
}
.lottery {
animation: changeBg .5s ease infinite;
overflow: hidden;
padding: 20px;
width: 400px;
margin: 0 auto;
background-repeat: no-repeat;
background-size: 100% 100%;
}
@keyframes changeBg {
0% {
background-image: url(../assets/images/k1.png);
}
100% {
background-image: url(../assets/images/k2.png);
}
}
.lottery .lottery-item {
height: 340px;
position: relative;
margin-top: 10px;
margin-left: 10px;
}
.lottery .lottery-item ul li {
width: 33.33333333%;
position: absolute;
padding-right: 10px;
}
.lottery .lottery-item ul li:nth-child(2) {
left: 33.33333333%;
}
.lottery .lottery-item ul li:nth-child(3) {
left: 66.66666666%;
}
.lottery .lottery-item ul li:nth-child(4) {
left: 66.66666666%;
top: 110px;
}
.lottery .lottery-item ul li:nth-child(5) {
left: 66.66666666%;
top: 220px;
}
.lottery .lottery-item ul li:nth-child(6) {
left: 33.33333333%;
top: 220px;
}
.lottery .lottery-item ul li:nth-child(7) {
left: 0;
top: 220px;
}
.lottery .lottery-item ul li:nth-child(8) {
left: 0;
top: 110px;
}
.lottery .lottery-item ul li .box {
height: 100px;
position: relative;
text-align: center;
overflow: hidden;
background: url(../assets/images/bg2.png) no-repeat center;
background-size: 100% 100%;
}
.lottery .lottery-item ul li .box img {
display: block;
height: 50px;
margin: 0 auto;
margin-top: 10px;
margin-bottom: 5px;
}
.lottery .lottery-item ul li .box p {
color: #708ABF;
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
font-size: 14px;
}
.lottery .lottery-item ul li.on .box {
background: url(../assets/images/bg1.png) no-repeat center;
background-size: 100% 100%;
}
.lottery .lottery-item ul li.on .box p {
color: #fff;
}
.lottery .lottery-item .lottery-start {
position: absolute;
left: 33.33333333%;
width: 33.33333333%;
top: 110px;
padding-right: 10px;
}
.lottery .lottery-item .lottery-start .box {
height: 100px;
font-size: 14px;
color: #fff;
cursor: pointer;
text-align: center;
overflow: hidden;
background: url(../assets/images/bg1.png) no-repeat center;
background-size: 100% 100%;
}
.lottery .lottery-item .lottery-start .box p b {
font-size: 40px;
margin-top: 16px;
margin-bottom: 15px;
line-height: 30px;
display: block;
}
.lottery .lottery-item .lottery-start .box:active {
opacity: 0.7;
}
.lottery .lottery-item .lottery-start .box.gray {
background: url(../assets/images/bg3.png) no-repeat center;
background-size: 100% 100%;
}
.lottery .lottery-item .lottery-start .box.gray p {
color: #708ABF;
font-weight: bold;
}
.mask {
width: 100%;
height: 100%;
background: rgba(0, 0, 0, 0.7);
position: fixed;
overflow: hidden;
z-index: 222;
top: 0;
left: 0;
}
.lottery-alert {
max-width: 400px;
text-align: center;
z-index: 10000;
border-radius: 10px;
background: #fff;
padding: 20px;
position: fixed;
left: 0;
right: 0;
margin: auto;
top: 50%;
transform: translateY(-50%);
}
.lottery-alert h1 {
font-size: 18px;
font-weight: bold;
color: #D92B2F;
}
.lottery-alert img {
display: block;
height: 120px;
margin: 0 auto;
}
.lottery-alert h2 {
font-weight: normal;
color: #D92B2F;
font-size: 15px;
padding-top: 15px;
}
.lottery-alert p {
color: #666;
font-size: 16px;
padding-top: 5px;
}
.lottery-alert .btnsave {
border-radius: 3px;
box-shadow: none;
height: 40px;
cursor: pointer;
line-height: 40px;
color: #fff;
margin-top: 12px;
background: linear-gradient(180deg, rgba(213, 60, 63, 1) 0%, rgba(201, 20, 24, 1) 100%);
font-size: 16px;
}
</style>