这篇文章主要讲解了JS实现手机端输入验证码的方法,内容清晰明了,对此有兴趣的小伙伴可以学习一下,相信大家阅读完之后会有帮助。
想法:
1、使用label标签做显示验证码的框,
2、然后每个label for属性指向同一个 id 为vcode 的input,
3、为了能够触发input焦点, 将input 改透明度样式隐藏,
4、这样就实现了 点击label触发 input焦点,调用键盘。
运行效果:
示例代码:
结构部分html:
<div id="app" class="app">
<h3 class="heading-2">验证码:</h3>
<div class="v-code">
<input
ref="vcode"
id="vcode"
type="tel"
maxlength="6"
v-model="code"
@focus="focused = true"
@blur="focused = false"
:disabled="telDisabled">
<label
for="vcode"
class="line"
v-for="item,index in codeLength"
:class="{'animated': focused && cursorIndex === index}"
v-text="codeArr[index]"
>
</label>
</div>
</div>
css部分:
<style>
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
body {
background-color: #ffffff;
font-family: -apple-system, PingFang SC, Hiragino Sans GB, Helvetica Neue, Arial;
-webkit-tap-highlight-color: transparent;
}
.app {
padding-left: 20px;
padding-right: 20px;
padding-top: 60px;
max-width: 320px;
margin-left: auto;
margin-right: auto;
}
.heading-2 {
color: #333333;
}
.v-code {
margin-top: 20px;
display: -webkit-box;
display: -ms-flexbox;
display: flex;
-webkit-box-pack: justify;
-ms-flex-pack: justify;
justify-content: space-between;
-webkit-box-align: center;
-ms-flex-align: center;
align-items: center;
position: relative;
width: 280px;
margin-left: auto;
margin-right: auto;
}
.v-code input {
position: absolute;
top: 200%;
opacity:0;
}
.v-code .line {
position: relative;
width: 40px;
height: 32px;
line-height: 32px;
text-align: center;
font-size: 28px;
}
.v-code .line::after {
display: block;
position: absolute;
content: '';
left: 0;
width: 100%;
bottom: 0;
height: 1px;
background-color: #aaaaaa;
transform: scaleY(.5);
transform-origin: 0 100%;
}
.v-code .line.animated::before {
display: block;
position: absolute;
left: 50%;
top: 20%;
width: 1px;
height: 60%;
content: '';
background-color: #333333;
animation-name: coruscate;
animation-duration: 1s;
animation-iteration-count: infinite;
animation-fill-mode: both;
}
@keyframes coruscate {
0% {
opacity: 0
}
25% {
opacity: 0
}
50% {
opacity: 1
}
75% {
opacity: 1
}
to {
opacity: 0
}
}
</style>
Javascript部分
1、通过CDN引入vue.js
<script src="https://cdn.bootcss.com/vue/2.5.16/vue.min.js"></script>
2、代码
var app = new Vue({
el: '#app',
data: {
code: '',
codeLength: 6,
telDisabled: false,
focused: false
},
computed: {
codeArr() {
return this.code.split('')
},
cursorIndex() {
return this.code.length
}
},
watch: {
code(newVal) {
this.code = newVal.replace(/[^\d]/g,'')
if (newVal.length > 5) {
// this.telDisabled = true
this.$refs.vcode.blur()
setTimeout(() => {
alert(`vcode: ${this.code}`)
}, 500)
}
}
},
})
看完上述内容,是不是对JS实现手机端输入验证码的方法有进一步的了解,如果还想学习更多内容,欢迎关注天达云行业资讯频道。