vue点击切换颜色
-
只能点击一个
<!doctype html><head>
<meta charset="UTF-8">
<title>修改资料--类别</title>
<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
<link href="../../css/mui.min.css" rel="stylesheet" />
<link rel="stylesheet" href="../../css/modify-categroy.css" />
</head> <body>
<div id="categroy" v-cloak>
<header class="mui-bar mui-bar-nav">
<a class="mui-action-back mui-icon mui-icon-left-nav mui-pull-left"></a>
<h1 class="mui-title">类别</h1>
<span class="mui-save mui-pull-right">保存</span>
</header>
<div class="mui-content">
<div class="categroy-box" >
<span class="categroy-btn " v-for="(item,index) in items" :class='{active:changeActive == index }' @tap="isActive(index)">{{item.msg}}</span>
</div>
</div>
<p>最多可选择三项</p>
</div>
<script src="../../js/mui.min.js"></script>
<script src="../../js/vue.js"></script>
<script type="text/javascript">
mui.init()
var categroy = new Vue({
el:'#categroy',
data:{
items:[{
msg: '电影'
},{
msg: '剧集'
},{
msg: '综艺'
},{
msg: 'MV'
},{
msg: '记录'
},{
msg: '广告'
},{
msg: 'VR'
},{
msg: '动漫'
},{
msg: '其他'
}
],
changeActive:0
},
mounted:function() { },
methods: {
isActive:function(index) {
var _this = this;
_this.changeActive = index;
}
}
})
</script>
</body>
less
-
用less实现
#categroy {
.mui-bar {
background: #fff;
box-shadow: none;
border-bottom: 1px solid #c8c7cc;
.mui-icon {
color: #c8c7cc;
}
.mui-save {
padding: 14px 10px;
margin: 0 -10px;
font-size: 14px;
} }
.mui-content {
width: 100%;
height: 100%;
background: #ffffff;
.categroy-box {
margin: 13px 30px;
.categroy-btn {
display: inline-block;
width: 23%;
line-height: 2;
margin: 0 5px 8px 0;
text-align: center;
font-size: 1.6rem;
}
.active {
border-radius: 16px;
color: #ffffff;
background: #0189ff;
} }
}
p {
margin: 12px 0 0 20px;
font-size: 1.6rem;
} }
vue点击切换颜色限制个数
<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<title>修改资料--类别</title>
<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
<link href="../../css/mui.min.css" rel="stylesheet" />
<link rel="stylesheet" href="../../css/modify-categroy.css" />
</head>
<body>
<div id="categroy" v-cloak>
<header class="mui-bar mui-bar-nav">
<a class="mui-action-back mui-icon mui-icon-left-nav mui-pull-left"></a>
<h1 class="mui-title">类别</h1>
<span class="mui-save mui-pull-right">保存</span>
</header>
<div class="mui-content">
<div class="categroy-box" >
<span class="categroy-btn " v-for="(item,index) in items" :class='{active:item.checked }' @tap="isActive(item)">{{item.msg}}</span>
</div>
</div>
<p>最多可选择三项</p>
</div>
<script src="../../js/mui.min.js"></script>
<script src="../../js/vue.js"></script>
<script type="text/javascript">
mui.init()
var categroy = new Vue({
el:'#categroy',
data:{
items:[{
msg: '电影'
},{
msg: '剧集'
},{
msg: '综艺'
},{
msg: 'MV'
},{
msg: '记录'
},{
msg: '广告'
},{
msg: 'VR'
},{
msg: '动漫'
},{
msg: '其他'
}
]
},
mounted:function() {
},
methods: {
isActive:function(item) {
var _this = this;
var a = document.getElementsByClassName('active');
//如果active class的checked是否存在
if(typeof item.checked == 'undefined') {
if(a.length<3){
console.log(a.length)
//全局创建
//Vue.set(item,'checked',true);
//局部创建
_this.$set(item,'checked',true);
}else {
mui.toast('最多选择三项')
}
}else{
item.checked = !item.checked;
}
}
}
})
</script>
</body>
</html>