Vue组件实现卡片动画倒计时示例详解

<template>
  <div class="animate-clock">
    <!-- <p>{{days}}{{hours}}{{minites}}{{seconds}}</p> -->
    <span>距离结束还剩</span>
    <animate-card :val="days" :size="16" :self-disabled="disabled" />
    <span>天</span>
    <animate-card :val="hours" :size="16" :self-disabled="disabled" />
    <span>时</span>
    <animate-card :val="minites" :size="16" :self-disabled="disabled" />
    <span>分</span>
    <animate-card :val="seconds" :size="16" :self-disabled="disabled" />
    <span>秒</span>
  </div>
</template>
<style lang="scss" scoped>
.animate-clock {
  width: 100%;
  text-align: center;
  font-size: 16px;
  font-weight: bold;
  padding: 40px 0 ;
}
</style>

<script>
import animateCard from './animate-card.vue'
export default {
  components: { animateCard },
  props: {
    terminalTime: String,
  },
  data() {
    return {
      days: ['0', '0'],
      hours: ['0', '0'],
      minites: ['0', '0'],
      seconds: ['0', '0'],
      setIntVal: null,
      disabled: false,
    }
  },
  mounted() {
    // 先调用一次
    this.updateClock()
    // 箭头函数不修改当前作用域下的 this 指向
    this.setIntVal = setInterval(() => {
      this.updateClock()
    }, 1000)
  },
  methods: {
     /**
     * 更新计时器
     * @result void
     */
    updateClock() {
      let now = new Date().getTime()
      let stopTime = 0
      // 错误入参 处理逻辑
      try {
        stopTime = new Date(this.terminalTime).getTime()
      } catch (err) {
        console.error(err)
        return false
      }
      // 终止逻辑
      const remainingTime = stopTime - now
      if (remainingTime < 1000) {
        clearInterval(this.setIntVal)
        this.setIntVal = null
        // 计时器 清零
        this.days = this.hours = this.minites = this.seconds = ['0', '0']
        this.disabled = true
        console.log('时间到！')
        return false
      }
      // 计算 日、时、分、秒
      let days = parseInt(remainingTime / (24 * 60 * 60 * 1000))
      let hours = parseInt(
        (remainingTime - 24 * 60 * 60 * 1000 * days) / (60 * 60 * 1000)
      )
      let minites = parseInt(
        (remainingTime - 24 * 60 * 60 * 1000 * days - 60 * 60 * 1000 * hours) /
          (60 * 1000)
      )
      let seconds = parseInt(
        (remainingTime -
          24 * 60 * 60 * 1000 * days -
          60 * 60 * 1000 * hours -
          60 * 1000 * minites) /
          1000
      )
      // 更新 data
      this.days = this.toStringAndUnshiftZero(days)
      this.hours = this.toStringAndUnshiftZero(hours)
      this.minites = this.toStringAndUnshiftZero(minites)
      this.seconds = this.toStringAndUnshiftZero(seconds)
    },
    /**
     * 转化数字为数组，并在 头部填充 0
     * @params num: numnber
     * @result string[]
     */
    toStringAndUnshiftZero(num) {
      const val = num.toString().split('')
      if (num < 10) {
        val.unshift('0')
      }
      return val
    },
  },
}
</script>

<template>
  <div class="aimate-card">
    <div class="card-group" v-for="(item,idx) in val" :key="idx" :style="{'font-size': size+'px'}">
      <transition-group enter-active-class="animate__animated animate__bounceIn" leave-active-class="animate__animated animate__fadeOutDown">
        <div class="card-item" :class="{'disabled': selfDisabled}" v-for="num in 10" :key="num" v-show="item== num-1">{{num-1}}</div>
      </transition-group>
    </div>
  </div>
</template>
<script>
export default {
  props: {
    val: {
      type: Array,
      default: () => ['0', '0'],
    },
    size: {
      type: Number,
      default: 16,
    },
    selfDisabled: {
      type: Boolean,
      default: false,
    },
  },
  mounted() {
    console.log(this.selfDisabled)
  },
}
</script>
<style lang="scss" scoped>
.aimate-card {
  width: auto;
  display: inline-block;
  height: 100%;
  .card-group {
    display: inline-block;
    position: relative;
    width: 40px;
    padding: 5px;
    height: 100%;
    vertical-align: middle;
    .card-item {
      position: absolute;
      background: #3a7fe4;
      color: #fff;
      width: 30px;
      height: 40px;
      top: -20px;
      line-height: 40px;
    }
    .disabled {
      background: #ccc !important;
    }
  }
}
</style>

<div class="vote-clock">
    <animate-clock :terminalTime="'2023-07-11 23:27:00'" />
</div>