携手创作,共同成长!这是我参与「掘金日新计划 · 8 月更文挑战」的第N天,点击查看活动详情 >>PS:第4天。
首先全局组件准备
- 创建
components
文件夹,在这个文件夹里创建index.ts
文件 - 在
main.ts
中进行挂载
import XtxUI from '@/components'
createApp(App).use(pinia).use(XtxUI).use(router).mount('#app')
- 在
components
文件夹里的index.ts
文件中使用install
方法进行挂载
export default {
install(app: App) {
app.component(XtxSkeleton.name, XtxSkeleton)
app.component(XtxCarousel.name, XtxCarousel)
app.component(XtxMore.name, XtxMore)
app.component(XtxBread.name, XtxBread)
app.component(XtxBreadItem.name, XtxBreadItem)
}
}
VUE3还需要生命一个类型文件,使得在代码中输入全局组件时出现提示
在src
下创建文件global.d.ts
import XtxSkeleton from '@/components/skeleton/index.vue'
import XtxCarousel from '@/components/carousel/index.vue'
import XtxMore from '@/components/more/index.vue'
import XtxBread from '@/components/bread/index.vue'
import XtxBreadItem from '@/components/bread/item.vue'
declare module 'vue' {
export interface GlobalComponents {
XtxSkeleton: typeof XtxSkeleton
XtxCarousel: typeof XtxCarousel
XtxMore: typeof XtxMore
XtxBread: typeof XtxBread
XtxBreadItem: typeof XtxBreadItem
}
}
export {}
组件创建开始
1.骨架屏
组件代码(动画闪动的效果)
<script lang="ts" setup name="XtxSkeleton">
defineProps({
// 背景颜色
bg: {
type: String,
default: '#efefef',
},
// 宽度
width: {
type: Number,
required: true,
},
// 高度
height: {
type: Number,
required: true,
},
// 动画
animated: {
type: Boolean,
default: false,
},
// 淡出淡入
fade: {
type: Boolean,
default: false,
},
})
</script>
<template>
<div class="xtx-skeleton" :style="{ width: width + 'px', height: height + 'px' }" :class="{ shan: animated, fade: fade }">
<!-- 1 盒子-->
<div class="block"></div>
<!-- 2 闪效果 xtx-skeleton 伪元素 --->
</div>
</template>
<style scoped lang="less">
.xtx-skeleton {
display: inline-block;
position: relative;
overflow: hidden;
vertical-align: middle;
.block {
width: 100%;
height: 100%;
border-radius: 2px;
}
}
.shan {
&::after {
content: '';
position: absolute;
animation: shan 1.5s ease 0s infinite;
top: 0;
width: 50%;
height: 100%;
background: linear-gradient(to left, rgba(255, 255, 255, 0) 0, rgba(255, 255, 255, 0.3) 50%, rgba(255, 255, 255, 0) 100%);
transform: skewX(-45deg);
}
}
@keyframes shan {
0% {
left: -100%;
}
100% {
left: 120%;
}
} .fade {
animation: fade 1s linear infinite alternate;
}
@keyframes fade {
from {
opacity: 0.2;
}
to {
opacity: 1;
}
}
</style>
父组件使用
如果指定内容还未加载出来就会显示骨架屏
<template v-else>
<Skeleton
:width="60"
:height="18"
style="margin-right: 5px"
bg="rgba(255,255,255,0.2)"
animated
/>
<Skeleton
:width="50"
:height="18"
bg="rgba(255,255,255,0.2)"
animated
/>
</template>
效果展示
2.轮播图封装
<template>
<div class="center">
<div class="my-carousel" @mouseenter="stop" @mouseleave="start">
<ul class="carousel-body">
<li
v-for="(item, i) in findBannerList"
:key="item.id"
class="carousel-item"
:class="{ fade: index === i }"
>
<RouterLink to="/">
<img :src="item.imgUrl" alt="图片" />
</RouterLink>
</li>
</ul>
<a @click="clickFn(-1)" href="javascript:;" class="carousel-btn prev"
><i class="iconfont icon-angle-left"></i
></a>
<a @click="clickFn(1)" href="javascript:;" class="carousel-btn next"
><i class="iconfont icon-angle-right"></i
></a>
<div class="carousel-indicator">
<span
@click="active(i)"
v-for="(item, i) in findBannerList"
:key="i"
:class="{ active: index === i }"
></span>
</div>
</div>
</div>
</template>
<script>
import { onUnmounted, ref, watch } from "vue";
export default {
name: "Carousel",
props: {
findBannerList: {
type: Array,
default: () => [],
},
autoplay: {
type: Boolean,
default: true,
},
duration: {
type: Number,
default: 3,
},
},
setup(props) {
const index = ref(0);
// 定义一个常量存储定时器
const timer = ref(null);
// 定时器方法,实现自动轮播效果
const autoplayFn = () => {
// 防抖,防止多次触发定时器
clearInterval(timer.value);
timer.value = setInterval(() => {
index.value += 1;
if (index.value >= props.findBannerList.length) {
index.value = 0;
}
}, props.duration * 1000);
};
// 侦听器,根据接口返回的数据与传递的相关属性参数 autoplay 开启轮播
// 监听返回的数据的长度,当长度大于1的时候并且 autoplay 的为 true 的时候开启轮播
watch(
() => props.findBannerList,
() => {
if (props.findBannerList.length > 1 && props.autoplay) {
autoplayFn();
}
}
);
// 鼠标移入轮播图,停止自动播放
const stop = () => {
if (timer.value) clearInterval(timer.value);
};
// 鼠标移出轮播图,开启定时器
const start = () => {
if (props.findBannerList.length > 1 && props.autoplay) {
autoplayFn();
}
};
// 点击轮播图上的左右按钮,切换轮播图,通过传递进来的参数,决定轮播图往左往右
const clickFn = (e) => {
index.value += e;
if (index.value >= props.findBannerList.length) {
index.value = 0;
}
if (index.value < 0) {
index.value = props.findBannerList.length - 1;
}
};
// 点击指示器(轮播图底下的小点)切换轮播图
const active = (e) => {
index.value = e;
};
// 组件销毁的时候情书定时器,避免性能损耗
onUnmounted(() => {
if (timer.value) clearInterval(timer.value);
});
return { index, stop, start, clickFn, active };
},
};
</script>
<style scoped lang="less">
li {
list-style: none;
}
.center {
margin: 0 auto;
width: 500px;
height: 300px;
}
.my-carousel {
width: 100%;
height: 100%;
min-width: 300px;
min-height: 150px;
position: relative;
margin: 0 auto;
.carousel {
&-body {
width: 100%;
height: 100%;
}
&-item {
width: 100%;
height: 100%;
position: absolute;
left: 0;
top: 0;
opacity: 0;
transition: opacity 0.5s linear;
&.fade {
opacity: 1;
z-index: 1;
}
img {
width: 100%;
height: 100%;
}
}
&-indicator {
position: absolute;
left: 0;
bottom: 20px;
z-index: 2;
width: 100%;
text-align: center;
span {
display: inline-block;
width: 12px;
height: 12px;
background: rgba(0, 0, 0, 0.2);
border-radius: 50%;
cursor: pointer;
~ span {
margin-left: 12px;
}
&.active {
background: #fff;
}
}
}
&-btn {
width: 44px;
height: 44px;
background: rgba(0, 0, 0, 0.2);
color: #fff;
border-radius: 50%;
position: absolute;
top: 228px;
z-index: 2;
text-align: center;
line-height: 44px;
opacity: 0;
transition: all 0.5s;
&.prev {
left: 20px;
}
&.next {
right: 20px;
}
}
}
&:hover {
.carousel-btn {
opacity: 1;
}
}
}
</style>
父组件使用
<XtxCarousel :slides="home.list" style="height: 500px" auto-play />
效果展示
3.查看全部按钮
<script lang="ts" setup name="XtxMore">
import { defineProps } from 'vue'
defineProps({
path: {
type: String,
default: '/',
},
})
</script>
<template>
<RouterLink :to="path" class="xtx-more">
<span><slot>查看全部</slot></span>
<i class="iconfont icon-angle-right"></i>
</RouterLink>
</template>
<style scoped lang="less">
.xtx-more {
margin-bottom: 2px;
span {
font-size: 16px;
vertical-align: middle;
margin-right: 4px;
color: #999;
}
i {
font-size: 14px;
vertical-align: middle;
position: relative;
top: 2px;
color: #ccc;
}
&:hover {
span,
i {
color: @xtxColor;
}
}
}
</style>
父组件使用
<XtxMore to="/" />
效果展示
4.面包屑
文件创建(需创建两个文件,以便面包屑的嵌套)
item.vue代码
<script lang="ts" setup name="XtxBreadItem">
import { inject } from 'vue'
defineProps({
to: {
type: String,
},
})
const separator = inject('separator')
</script>
<template>
<div class="xtx-bread-item">
<!--
如果to存在 有值 我们就渲染一个router-link标签
如果to不存在 那就渲染一个span标签
-->
<router-link v-if="to" :to="to"><slot /></router-link>
<span v-else><slot /></span>
<!-- 分隔符 -->
<i v-if="separator">{{ separator }}</i>
<i v-else class="iconfont icon-angle-right"></i>
</div>
</template>
<style lang="less" scoped>
.xtx-bread-item {
i {
margin: 0 6px;
font-size: 10px;
}
// 最后一个i隐藏
&:nth-last-of-type(1) {
i {
display: none;
}
}
}
</style>
index.vue代码
<script lang="ts" setup name="XtxBread">
// 分隔符数据是位于Bread组件中 而对于分隔符数据的使用是在底层的组件中使用
// provide/inject
import { provide } from 'vue'
const props = defineProps({
separator: {
type: String,
default: '',
},
})
// 为底层组件提供数据
provide('separator', props.separator)
</script>
<template>
<div class="xtx-bread">
<slot />
</div>
</template>
<style scoped lang="less">
.xtx-bread {
display: flex;
padding: 25px 10px;
&-item {
a {
color: #666;
transition: all 0.4s;
&:hover {
color: @xtxColor;
}
}
}
i {
font-size: 12px;
margin-left: 5px;
margin-right: 5px;
line-height: 22px;
}
}
</style>
父组件使用
<XtxBread>
<XtxBreadItem to="/">首页</XtxBreadItem>
<XtxBreadItem>购物车</XtxBreadItem>
</XtxBread>
效果展示
朋友们,下期再见!!!