本篇内容主要讲解“vue-star中如何实现一个评星组件”,感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷,实用性强。下面就让小编来带大家学习“vue-star中如何实现一个评星组件”吧!
star文件夹下建立Star.vue,及相关的图片信息。便于组件的就近维护
Star.vue:
<template>
<div class="star" :class="starSize">
<span v-for="(itemClass,key) in itemClasses" :class="itemClass" class="star-item"></span>
</div>
</template>
<script>
const LENGTH = 5;
const CLS_ON = 'on';
const CLS_HALF = 'half';
const CLS_OFF = 'off';
export default{
props:{
size:{ //尺寸,24,36,48
type: Number
},
score:{
type: Number
}
},
computed:{
starSize(){
return 'star-'+ this.size;
},
itemClasses(){
let result = [];
let score = Math.floor(this.score*2)/2; //将数值调整为整数及.5的形式,例:4.3 => 4;4.6 => 4.5
let hasDecimal = score %1 !==0;
let integer = Math.floor(score);
for(let i =0;i<integer;i++){
result.push(CLS_ON);
}
if(hasDecimal){
result.push(CLS_HALF);
}
while(result.length<LENGTH){
result.push(CLS_OFF);
}
return result;
}
}
}
</script>
<style lang="stylus" rel="stylesheet/stylus">
@import "../../common/stylus/mixin.styl";
.star
font-size: 0
.star-item
display: inline-block
background-repeat: no-repeat
&.star-48
.star-item
width: 20px
height: 20px
margin-right: 22px
background-size: 20px 20px
&.last-child
margin-right: 0
&.on
bg-image('star48_on')
&.half
bg-image('star48_half')
&.off
bg-image('star48_off')
&.star-36
.star-item
width: 15px
height: 15px
margin-right: 6px
background-size: 15px 15px
&.last-child
margin-right: 0
&.on
bg-image('star36_on')
&.half
bg-image('star36_half')
&.off
bg-image('star36_off')
&.star-24
.star-item
width: 10px
height: 10px
margin-right: 3px
background-size: 10px 10px
&.last-child
margin-right: 0
&.on
bg-image('star24_on')
&.half
bg-image('star24_half')
&.off
bg-image('star24_off')
</style>
Header.vue:
<star :size="48" :score="3.5"></star>
<script>
import star from '../star/Star.vue'
export default{
components:{
star
}
}
</script>
mixin.styl:
bg-image($url)
background-image: url($url + '@2x.png')
@media (-webkit-min-device-pixel-ratio: 3),(min-device-pixel-ratio:3)
background-image: url($url + '@3x.png')
到此,相信大家对“vue-star中如何实现一个评星组件”有了更深的了解,不妨来实际操作一番吧!这里是亿速云网站,更多相关内容可以进入相关频道进行查询,关注我们,继续学习!
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原文链接:https://my.oschina.net/u/4580264/blog/4356577