基于 Vant、Vue3 时间范围选择器的实现

发现 Vant 没有提供用于选择 HH:mm 的时间范围选择器，于是手动实现一下。

// ———— RangeTimePicker.vue ————
<template>
  <div>
    <ActionSheet v-model:show="props.show">
      <DatetimePicker
        v-if="props.show && showEndTimePicker === false"
        v-model="startTime"
        @confirm="showEndTimePicker = true"
        @cancel="onClose"
        type="time"
        title="开始时间"
        :min-hour="0"
        :max-hour="23"
      />
      <DatetimePicker
        v-if="props.show && showEndTimePicker"
        v-model="endTime"
        @confirm="timeConfirm"
        @cancel="onClose(true)"
        cancel-button-text="返回"
        type="time"
        title="结束时间"
        :min-hour="0"
        :max-hour="23"
      />
    </ActionSheet>
  </div>
</template>

<script setup lang="ts">
import { ActionSheet, DatetimePicker, Toast } from 'vant';
import { ref } from 'vue';

function compareTime(time1: string, time2: string) {
  const REG = /([01]\d|2[0-3]):[0-5]\d/;
  if (!(REG.test(time1) && REG.test(time2))) {
    throw new Error('时间格式不合法，格式必须为：HH:mm 形式')
  }
  const timeNumber1 = time1.match(/\d/g)?.reduce((ac, cur) => ac += cur) || ''
  const timeNumber2 = time2.match(/\d/g)?.reduce((ac, cur) => ac += cur) || ''
  return timeNumber1 < timeNumber2
}

const props = defineProps({
  show: {
    type: Boolean,
    default: false
  },
  times: {
    type: Array,
    default: ["09:00", "12:00"]
  }
})
interface EmitsType {
  (e: 'update:times', times: string[]): void
  (e: 'update:show', show: boolean): void
}
const emit = defineEmits<EmitsType>()

const showEndTimePicker = ref(false)
const startTime = ref<string>(typeof props.times[0] === 'string' ? props.times[0] : '')
const endTime = ref<string>(typeof props.times[1] === 'string' ? props.times[1] : '')
const onClose = (isSetEndTime?: boolean) => {
  if (isSetEndTime) {
    showEndTimePicker.value = false
    return
  }
  emit('update:show', false)
  showEndTimePicker.value = false
}
const timeConfirm = () => {
  if (!compareTime(startTime.value, endTime.value)) {
    Toast("开始时间不能小于结束时间")
    return
  }
  emit('update:times', [startTime.value, endTime.value])
  onClose()
}
</script>

<style lang="less">
</style>

效果如下：