vue h5实现车牌号输入框

哈喽，大家好，最近鹏仔开发的项目是学校校内车辆超速方面的统计检测方面的系统，在开发过程中发现有个小功能，就是用户移动端添加车牌号，刚开始想着就一个输入框，提交时正则效验一下格式就行，最后感觉不是很方便，所以就简单自己手写了一个H5车牌号软键盘，由于每天工作比较忙，就没封装成插件了，趁着晚上空闲，给大家整理一下demo，复制即可使用，或者自行封装一个组件调用也可以（代码中一些写法可能过于粗糙，时间有限，任务多，就粗糙写一下吧，反正功能是实现了）。

功能如上图所示，支持 8位电车车牌和7位油车车牌。

第一位是省份，用户点击就会弹出省份软键盘；

第二位是字母，用户点击只能输入字母；

第三、四、五、六位是字母和数字，不包含O；

第七位是数字、字母、或者学、警之类汉字；

第八位是电车选项。

用户点击软键盘对应的按键时会高亮，这个是后期加的，所以上图中没有展示出来。

鹏仔的移动端是rem布局，根元素是26.67vw，如果你使用，可自行根据自己的项目将css中所有的单位变化一下。

css 复制代码

body,div,p,ul,ol,li,dl,dt,dd,table,tr,td,form,hr,h1,h2,h3,h4,h5,h6,fieldset,img,input {margin:0;padding:0}
body,html {width:100%;height:100%;font-size: 26.67vw;}

完整代码如下

html 复制代码

<template>
  <div class="layer">
    <!-- content -->
    <div class="content-layer">
      <div class="my-car-layer">
        <!-- 添加车辆 -->
        <div class="my-car-layer-add" @click="addShow = true">
          <div class="add-text">
            <p>添加车辆</p>
          </div>
        </div>
      </div>
    </div>
    <!-- 添加车辆弹窗 -->
    <div class="shade-layer" v-if="addShow" @click="keyboardShow = false">
      <div class="add-content">
        <div class="add-header">
          <p>车辆信息</p>
          <span @click="addShow = false">关闭</span>
        </div>
        <div class="form-list">
          <p>车牌号：</p>
          <div class="car-num-input">
            <div v-for="(item,index) in carNumList" :key="index" @click.stop="selectCarNum(index)" :class="(carIndex == index ? 'active' : '') + ' ' + (item ? 'status-key' : '')">
              {{ index == 0 && !item ? '省' : index == carNumList.length-1 && !item ? '新能源' : item }}
            </div>
          </div>
        </div>
        <button class="submit-btn" @click="carSubmitBtn()" v-points>提交</button>
      </div>
      <!-- 车牌键盘 -->
      <div class="keyboard-layer" v-if="keyboardShow" @click.stop="">
        <div class="keyboard-header">
          <span @click="keyboardShow = false">完成</span>
        </div>
        <!-- 省份键盘 -->
        <div class="province-layer" v-if="carIndex == '0'">
          <span v-for="(item,index) in provinceList" :key="index" @click="keyboardBtn(item)" :class="activeKey == item ? 'active-hover' : ''">{{ item == 'del' ? '删除' : item }}</span>
        </div>
        <!-- 数字字母键盘 -->
        <div class="keyboard-item" v-if="carIndex != '0'">
          <div v-if="carIndex != '1'">
            <span v-for="(item,index) in keyboardList[0]" :key="index" @click="keyboardBtn(item)" :class="activeKey == item ? 'active-hover' : ''">{{ item }}</span>
          </div>
          <div>
            <span v-for="(item,index) in keyboardList[1]" :key="index" @click="keyboardBtn(item)" :class="((item == 'O' && carIndex != '1') ? 'no-btn' : '') + ' ' + (activeKey == item ? 'active-hover' : '')">{{ item }}</span>
          </div>
          <div>
            <span v-for="(item,index) in keyboardList[2]" :key="index" @click="keyboardBtn(item)" :class="activeKey == item ? 'active-hover' : ''">{{ item }}</span>
          </div>
          <div>
            <span v-for="(item,index) in keyboardList[3]" :key="index" @click="keyboardBtn(item)" :class="activeKey == item ? 'active-hover' : ''">{{ item == 'del' ? '删除' : item }}</span>
          </div>
          <div v-if="carIndex == carNumList.length-2">
            <span v-for="(item,index) in keyboardList[4]" :key="index" @click="keyboardBtn(item)" :class="activeKey == item ? 'active-hover' : ''">{{ item }}</span>
          </div>
        </div>
      </div>
    </div>
  </div>
</template>
<script>
export default {
  name: "car",
  mixins: [],
  components: {},
  data() {
    return {
      addShow: false, // 添加车辆弹窗显示隐藏
      formData: {
        carNumber: ''
      },
      carNumList: ['','','','','','','',''], // 车牌号数组
      activeKey: '', // 键盘按键选中激活
      timeoutId: null, // 定时器ID
      carIndex: null, // 车牌号输入光标索引
      keyboardShow: false, // 键盘显示/隐藏
      provinceList: [
        '京', '津', '沪', '渝', '冀', '豫', '云', '辽', '黑', '湘',
        '皖', '鲁', '新', '苏', '浙', '赣', '鄂', '桂', '甘', '晋',
        '蒙', '陕', '吉', '闽', '贵', '粤', '青', '藏', '川', '宁',
        '琼', '使', '领', '学', '警', '挂', 'del'
      ],
      keyboardList: [
        ['1', '2', '3', '4', '5', '6', '7', '8', '9', '0'],
        ['Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'O', 'P'],
        ['A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L'],
        ['Z', 'X', 'C', 'V', 'B', 'N', 'M', 'del'],
        ['学','警','港','澳']
      ]
    };
  },
  mounted() {
  },
  methods: {
    // 添加车辆
    carSubmitBtn(){
      this.formData.carNumber = '';
      for(let i in this.carNumList){
        if(this.carNumList[i] == '' && i != this.carNumList.length-1){
          console.log('请输入完整车牌号');
          return;
        }
        this.formData.carNumber += this.carNumList[i];
      }
      console.log(this.formData.carNumber)
    },
    // 点击车牌号输入
    selectCarNum(inx){
      this.carIndex = inx;
      if(!this.keyboardShow){
        this.keyboardShow = true;
      }
    },
    // 键盘输入
    keyboardBtn(val){
      this.activeKey = val; // 键盘按键选中激活
      this.activeKeyBtn(); // 键盘按键激活定时器
      this.carNumList[this.carIndex] = val == 'del' ? '' : val;
      if(val == 'del' && this.carIndex > 0){
        this.carIndex--;
      }
      if(val != 'del' && this.carIndex < this.carNumList.length-1){
        this.carIndex++;
      }
      this.$forceUpdate();
    },
    // 键盘按键激活定时器
    activeKeyBtn() {
      // 清除之前的定时器
      if (this.timeoutId) clearTimeout(this.timeoutId)
     
      // 1秒后重置状态
      this.timeoutId = setTimeout(() => {
        this.activeKey = '';
      }, 300)
    }
  },
  watch: {
    "addShow"(){
      // 关闭弹窗时重置
      if(!this.addShow){
        this.formData = {
          carNumber: ''
        }
        this.carIndex = ''; // 车牌号输入光标索引
        this.carNumList = ['','','','','','','','']; // 车牌号数组
        this.keyboardShow = false; // 车牌键盘隐藏
      }
    }
  },
};
</script>
<style lang="scss" scoped>
.layer {
  padding: 0.22rem 0 0.64rem;
  box-sizing: border-box;
  .content-layer {
    width: 100%;
    position: relative;
    padding: 0 0.16rem;
    box-sizing: border-box;
    .my-car-layer{
      width: 100%;
      .my-car-layer-add{
        width: 100%;
        padding: 0.14rem 0.16rem;
        box-sizing: border-box;
        border-radius: 0.08rem;
        background: #FFF;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        .add-text{
          width: 100%;
          display: flex;
          align-items: center;
          justify-content: center;
          padding-top: 0.04rem;
          box-sizing: border-box;
          p{
            color: #2E59FD;
            font-family: "PingFang SC";
            font-size: 0.14rem;
            font-weight: 700;
            line-height: 0.2rem;
          }
        }
      }
    }
  }
  .shade-layer{
    position: fixed;
    top: 0;
    left: 0;
    z-index: 5;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,.4);
    padding: 0.16rem;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: center;
    .add-content{
      width: 100%;
      padding: 0.16rem 0.16rem 0.24rem;
      box-sizing: border-box;
      border-radius: 0.16rem;
      background: #FFF;
      .add-header{
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding-bottom: 0.14rem;
        box-sizing: border-box;
        p{
          color: #000;
          font-family: "PingFang SC";
          font-size: 0.16rem;
          font-weight: 700;
          line-height: 0.22rem;
        }
        span{
          color: #0A61C5;
          font-family: "PingFang SC";
          font-size: 0.12rem;
          font-weight: 700;
          line-height: 0.24rem;
          cursor: pointer;
        }
      }
      .form-list{
        p{
          color: #6B7280;
          font-family: "PingFang SC";
          font-size: 0.14rem;
          font-weight: 500;
          line-height: 0.2rem;
        }
        input{
          display: block;
          font-size: 0.14rem;
          line-height: 0.2rem;
          width: 100%;
          border-radius: 0.08rem;
          border: none;
          background: #F5F7FA;
          padding: 0.12rem 0.16rem;
          box-sizing: border-box;
        }
        .car-num-input{
          width: 100%;
          display: flex;
          align-items: center;
          justify-content: space-between;
          padding: 0.04rem 0;
          box-sizing: border-box;
          div{
            width: 0.3rem;
            height: 0.36rem;
            background: rgba(0,0,0,.05);
            border-radius: 0.04rem;
            border: 0.01rem solid transparent;
            box-sizing: border-box;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #000;
            font-size: 0.14rem;
            line-height: 0.18rem;
            &:first-child{
              color: rgba(0,0,0,.5);
            }
            &:last-child{
              border: 0.01rem dashed rgba(27, 171, 80, 0.8);
              color: rgba(0,0,0,.5);
              font-size: 0.08rem;
            }
          }
          .active{
            border: 0.01rem solid rgba(48, 112, 255, 0.8)!important;
          }
          .status-key{
            color: #000!important;
            font-size: 0.14rem!important;
            line-height: 0.18rem!important;
          }
        }
      }
      .submit-btn{
        display: block;
        width: 100%;
        border: none;
        padding: 0.06rem 0.1rem;
        box-sizing: border-box;
        border-radius: 0.52rem;
        background: linear-gradient(90deg, #0FA6F6 1.1%, #198CFE 99.99%);
        color: #FFF;
        text-align: center;
        font-family: "PingFang SC";
        font-size: 0.16rem;
        font-weight: 700;
        line-height: 0.24rem;
        margin-top: 0.24rem;
      }
    }
    .keyboard-layer{
      width: 100%;
      background: #D0D5DC;
      padding: 0.08rem 0.04rem 0.16rem;
      box-sizing: border-box;
      position: absolute;
      bottom: 0;
      left: 0;
      .keyboard-header{
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: flex-end;
        padding: 0 0.08rem 0.08rem;
        box-sizing: border-box;
        span{
          color: #2E59FD;
          font-family: "PingFang SC";
          font-size: 0.14rem;
          font-weight: 700;
          line-height: 0.28rem;
          cursor: pointer;
        }
      }
      .province-layer{
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-wrap: wrap;
        span{
          color: #000;
          font-size: 0.14rem;
          line-height: 0.28rem;
          background: #fff;
          border-radius: 0.06rem;
          padding: 0.06rem 0.08rem;
          box-sizing: border-box;
          margin: 0.02rem;
          box-shadow: 0px 0.02rem 0.02rem 0px rgba(0, 0, 0, 0.1);
        }
      }
      .keyboard-item{
        width: 100%;
        div{
          display: flex;
          align-items: center;
          justify-content: center;
          span{
            color: #000;
            font-size: 0.14rem;
            line-height: 0.28rem;
            background: #fff;
            border-radius: 0.06rem;
            padding: 0.04rem 0.1rem;
            box-sizing: border-box;
            margin: 0.04rem;
            box-shadow: 0px 0.02rem 0.04rem 0px rgba(0, 0, 0, 0.3);
          }
        }
      }
      .no-btn{
        color: rgba(0,0,0,.4)!important;
        pointer-events: none;
      }
      .active-hover{
        background: #B3BAC7!important;
      }
    }
  }
}
</style>

原文：共享博客 sharedbk.com vue h5实现车牌号输入框哈喽，大家好，最近鹏仔开发的项目是学校校内车辆超速方面的统计检测方面的系统，在开发过程中发现有个小功能，就是用户移动端添加车牌号，刚开始想着就一个输入框，提交时正则效验一下格式就行，最后感觉不是很方便，所以就简单自己手写了一个H5车牌号软键盘，由于每天工作比较忙，就没封...,共享博客-(百变鹏仔)https://www.sharedbk.com/post/284.html