How to import swiper plugin in vue?
This article mainly introduces the method of importing the swiper plug-in in the vue project. Now I will share it with you and give you a reference.
Version selection
swiper is a commonly used plug-in, and it has now been iterated to the fourth generation: swiper4.
The commonly used versions are swiper3 and swiper4. I chose swiper3.
Installation
Install the latest version 3.4.2 of swiper3:
npm i swiper@3.4.2 -S
Here is a little knowledge, how to view all version numbers of the node package:
npm view 包名 versions
Component writing
The official method of using swiper is divided into 4 processes:
Loading the plug-in
HTML content
Define a size for Swiper
Initialize Swiper
I also follow this process to write components:
Load plug-in
import Swiper from 'swiper'; import 'swiper/dist/css/swiper.min.css';
HTML content
<template>
<p class="swiper-container">
<p class="swiper-wrapper">
<p class="swiper-slide">Slide 1</p>
<p class="swiper-slide">Slide 2</p>
<p class="swiper-slide">Slide 3</p>
</p>
<!-- 如果需要分页器 -->
<p class="swiper-pagination"></p>
<!-- 如果需要导航按钮 -->
<p class="swiper-button-prev"></p>
<p class="swiper-button-next"></p>
<!-- 如果需要滚动条 -->
<p class="swiper-scrollbar"></p>
</p>
</template>Define a size for Swiper
.swiper-container {
width: 600px;
height: 300px;
}Initialize Swiper
Because Swiper cannot be initialized until the dom rendering is completed, the initialization must be put into the vue life cycle hook function mounted Medium:
mounted(): {
/* eslint-disable no-new */
new Swiper('.swiper-container', {})
}/* eslint-disable no-new */ in the above code is the project that enables eslint code detection and can be used. If eslint is not used, use the following code:
mounted(): {
var mySwiper = new Swiper('.swiper-container', {})
}Complete
Combine the above codes:
<template>
<p class="swiper-container">
<p class="swiper-wrapper">
<p class="swiper-slide">Slide 1</p>
<p class="swiper-slide">Slide 2</p>
<p class="swiper-slide">Slide 3</p>
</p>
<!-- 如果需要分页器 -->
<p class="swiper-pagination"></p>
<!-- 如果需要导航按钮 -->
<p class="swiper-button-prev"></p>
<p class="swiper-button-next"></p>
<!-- 如果需要滚动条 -->
<p class="swiper-scrollbar"></p>
</p>
</template>
<script>
import Swiper from &#39;swiper&#39;;
import &#39;swiper/dist/css/swiper.min.css&#39;;
export default {
mounted(): {
var mySwiper = new Swiper('.swiper-container', {})
}
}
</script>
Run, you can see that the effect of the carousel can be achieved. But so far, only the carousel effect has been achieved, and the data has not been rendered.
Rendering of data
In actual projects, the swiper plug-in is often used to achieve the effect of banner graphics (Sina mobile version):
Acquisition of data
I use the ajax plug-in axios commonly used in vue projects as an example:
axios
.get('/user?ID=12345')
.then(function (response) {
this.imgList = response;
})
.catch(function (error) {
console.log(error);
});The data structure for obtaining data is specified as:
[ "https://www.baidu.com/img/baidu_jgylogo3.gif", "https://www.baidu.com/img/baidu_jgylogo3.gif", "https://www.baidu.com/img/baidu_jgylogo3.gif", "https://www.baidu.com/img/baidu_jgylogo3.gif", "https://www.baidu.com/img/baidu_jgylogo3.gif" ]
List rendering
<template>
<p class="swiper-container">
<p class="swiper-wrapper">
<p class="swiper-slide" v-for="item in imgList" :style="{backgroundImage: 'url(' + item + ')'}"></p>
</p>
<!-- 如果需要分页器 -->
<p class="swiper-pagination"></p>
<!-- 如果需要导航按钮 -->
<p class="swiper-button-prev"></p>
<p class="swiper-button-next"></p>
<!-- 如果需要滚动条 -->
<p class="swiper-scrollbar"></p>
</p>
</template>
<style>
.swiper-slide {
width: 100%;
height: 400px;
}
<style>So far, the data rendering has been completed, but looking at the actual effect, it seems that the banner cannot achieve the effect of the carousel. The image is only rendered here, but the carousel image is rendered and has not been initialized. Because the initialization has been completed when the life cycle is mounted.
Initialization
So after the data is obtained and the DOM is updated, swiper needs to be reinitialized.
axios
.get('/user?ID=12345')
.then(function (response) {
// 获取数据更新
this.imgList = response;
// DOM还没有更新
this.$nextTick(() => {
// DOM更新了
// swiper重新初始化
/* eslint-disable no-new */
new Swiper('.swiper-container', {})
})
})
.catch(function (error) {
console.log(error);
});At this point, the effect of the carousel image is realized.
Summary
Swiper is a commonly used plug-in, but there are many problems encountered when importing swiper into a vue project. The main problem is to understand the life cycle of vue so that you can effectively use various js plug-ins.
The above is what I compiled for everyone. I hope it will be helpful to everyone in the future.
Related articles:
Using Vue to implement the underlying principles (detailed tutorial)
How to implement dragging and obtaining control files in js Drag and drop content function
Detailed interpretation of the decorative design pattern in js
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