Vue.js 单击并删除前一个时添加活动类 [英] Vue.js To add class active when click and remove the previous one

问题描述

我想在我的 div 元素上实现这个活动链接，你可以在这里看到我想用我的代码做的例子

这是我必须在其上激活链接的元素的代码

 
<div class="file has-text-Centered icon-active-color" v-on:click="activeiconc"><img src="../imgs/png.png"/><h4>.PNG</h4>
<div class="文件以文本为中心" v-on:click="activeicon" v-bind:class="{'icon-active-color':activeiconc,}"><img src="../imgs/pdf.png"/><h4>.PDF</h4>

<div class="文件以文本为中心" v-on:click="activeicon" v-bind:class="{'icon-active-color':activeiconc }"><img src="../imgs/jpg.png"/><h4>.JPG</h4>

<div class="文件以文本为中心" v-on:click="activeicon" v-bind:class="{'icon-active-color':activeiconc }"><img src="../imgs/psd.png"/><h4>.PSD</h4>

js

 导出默认 {组件: {主布局},数据:函数(){返回 {标志:假，颜色:假，列表:真实，网格:假，删除btn:假，isImageModalActive: 假，活动行:假，活动图标:假，}},方法:{显示网格:功能(){this.grid = true;this.list = false;},节目单:功能(){this.list ^=true;this.grid = false},显示标志:功能(){this.logo ^= 真；this.color = false;this.deletebtn ^= 真；this.activerow ^= 真},显示颜色:功能(){this.color ^= 真；this.logo = false;},活动图标:功能(){this.activeiconc ^= 真；}}}

解决方案

我是 Vue 的新手，但将 JQuery 示例转换为 Vue.js 的一种简单方法是:Jsfiddle 演示

基本上，您需要将活动元素存储在您的 Vue 数据中，并根据 in 设置类.您可以使用 v-for 来呈现列表.

HTML 部分:

<ul><li @click="activate(1)" :class="{ active : active_el == 1 }">链接 1</li><li @click="activate(2)" :class="{ active : active_el == 2 }">链接 2</li><li @click="activate(3)" :class="{ active : active_el == 3 }">链接 3</li>

Vue.js:

var app = new Vue({el:"#app",数据:{active_el:0},方法:{激活:功能(el){this.active_el = el;}}});

I want to achieve this active link on my div element here you can see the example that i want to do with my code

http://jsfiddle.net/fiddleyetu/9ff79/

$(function() {
  $( 'ul.nav li' ).on( 'click', function() {
        $( this ).parent().find( 'li.active' ).removeClass( 'active' );
        $( this ).addClass( 'active' );
  });
});

in here using vue.js i can't do the active link on my div elements

here is my code for the elements on which i have to do the links active

    <div class="conversion">
    <div class="file has-text-centered icon-active-color" v-on:click="activeiconc">
        <img src="../imgs/png.png"/>    
        <h4>.PNG</h4>
    </div>
    <div class="file has-text-centered" v-on:click="activeicon" v-bind:class="{ 'icon-active-color':activeiconc,}">
        <img src="../imgs/pdf.png"/>
        <h4>.PDF</h4>
    </div>
    <div class="file has-text-centered" v-on:click="activeicon" v-bind:class="{ 'icon-active-color':activeiconc }">
        <img src="../imgs/jpg.png"/>
        <h4>.JPG</h4>
    </div>
    <div class="file has-text-centered" v-on:click="activeicon" v-bind:class="{ 'icon-active-color':activeiconc }">
        <img src="../imgs/psd.png"/>
        <h4>.PSD</h4>
    </div>
</div>

js

 export default {
components: {
  MainLayout
},
    data: function(){
    return {
      logo: false,
      color:false,
      list:true,
      grid:false,
      deletebtn:false,
      isImageModalActive: false,
      activerow: false,
      activeiconc:false,
    }
  },
  methods:{ 

    showgrid:function(){
        this.grid = true;
        this.list = false;

    },
    showlist:function(){
        this.list ^=true;
        this.grid = false
    },
    showLogo:function(){
        this.logo ^= true;
        this.color = false; 
        this.deletebtn ^= true;
        this.activerow ^= true
    },
    showColor:function(){
        this.color ^= true;
        this.logo = false;
    },
    activeicon:function(){
        this.activeiconc ^= true;
    }
  }
}

解决方案

I'm new to Vue but an easy way to turn your JQuery example into Vue.js is this: Jsfiddle demo

Basically, you need to store the active element in your Vue data, and set the class based on in. You could use a v-for to render the list.

The HTML part:

<div id="app">
  <ul>
    <li @click="activate(1)" :class="{ active : active_el == 1 }">Link 1</li>
    <li @click="activate(2)" :class="{ active : active_el == 2 }">Link 2</li>
    <li @click="activate(3)" :class="{ active : active_el == 3 }">Link 3</li>
  </ul>
</div>

The Vue.js:

var app = new Vue({
  el:"#app",
  data:{
    active_el:0
  },
  methods:{
    activate:function(el){
        this.active_el = el;
    }
  }
});

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