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- <template>
- <view class="u-countdown">
- <view class="u-countdown-item" :style="[itemStyle]" v-if="showDays && (hideZeroDay || (!hideZeroDay && d != '00'))">
- <view class="u-countdown-time" :style="[letterStyle]">
- {{ d }}
- </view>
- </view>
- <view
- class="u-countdown-colon"
- :style="{fontSize: separatorSize + 'rpx', color: separatorColor, paddingBottom: separator == 'colon' ? '4rpx' : 0}"
- v-if="showDays && (hideZeroDay || (!hideZeroDay && d != '00'))"
- >
- {{ separator == 'colon' ? ':' : '天' }}
- </view>
- <view class="u-countdown-item" :style="[itemStyle]" v-if="showHours">
- <view class="u-countdown-time" :style="{ fontSize: fontSize + 'rpx', color: color}">
- {{ h }}
- </view>
- </view>
- <view
- class="u-countdown-colon"
- :style="{fontSize: separatorSize + 'rpx', color: separatorColor, paddingBottom: separator == 'colon' ? '4rpx' : 0}"
- v-if="showHours"
- >
- {{ separator == 'colon' ? ':' : '时' }}
- </view>
- <view class="u-countdown-item" :style="[itemStyle]" v-if="showMinutes">
- <view class="u-countdown-time" :style="{ fontSize: fontSize + 'rpx', color: color}">
- {{ i }}
- </view>
- </view>
- <view
- class="u-countdown-colon"
- :style="{fontSize: separatorSize + 'rpx', color: separatorColor, paddingBottom: separator == 'colon' ? '4rpx' : 0}"
- v-if="showMinutes"
- >
- {{ separator == 'colon' ? ':' : '分' }}
- </view>
- <view class="u-countdown-item" :style="[itemStyle]" v-if="showSeconds">
- <view class="u-countdown-time" :style="{ fontSize: fontSize + 'rpx', color: color}">
- {{ s }}
- </view>
- </view>
- <view
- class="u-countdown-colon"
- :style="{fontSize: separatorSize + 'rpx', color: separatorColor, paddingBottom: separator == 'colon' ? '4rpx' : 0}"
- v-if="showSeconds && separator == 'zh'"
- >
- 秒
- </view>
- </view>
- </template>
- <script>
- /**
- * countDown 倒计时
- * @description 该组件一般使用于某个活动的截止时间上,通过数字的变化,给用户明确的时间感受,提示用户进行某一个行为操作。
- * @tutorial https://www.uviewui.com/components/countDown.html
- * @property {String Number} timestamp 倒计时,单位为秒
- * @property {Boolean} autoplay 是否自动开始倒计时,如果为false,需手动调用开始方法。见官网说明(默认true)
- * @property {String} separator 分隔符,colon为英文冒号,zh为中文(默认colon)
- * @property {String Number} separator-size 分隔符的字体大小,单位rpx(默认30)
- * @property {String} separator-color 分隔符的颜色(默认#303133)
- * @property {String Number} font-size 倒计时字体大小,单位rpx(默认30)
- * @property {Boolean} show-border 是否显示倒计时数字的边框(默认false)
- * @property {Boolean} hide-zero-day 当"天"的部分为0时,隐藏该字段 (默认true)
- * @property {String} border-color 数字边框的颜色(默认#303133)
- * @property {String} bg-color 倒计时数字的背景颜色(默认#ffffff)
- * @property {String} color 倒计时数字的颜色(默认#303133)
- * @property {String} height 数字高度值(宽度等同此值),设置边框时看情况是否需要设置此值,单位rpx(默认auto)
- * @property {Boolean} show-days 是否显示倒计时的"天"部分(默认true)
- * @property {Boolean} show-hours 是否显示倒计时的"时"部分(默认true)
- * @property {Boolean} show-minutes 是否显示倒计时的"分"部分(默认true)
- * @property {Boolean} show-seconds 是否显示倒计时的"秒"部分(默认true)
- * @event {Function} end 倒计时结束
- * @event {Function} change 每秒触发一次,回调为当前剩余的倒计秒数
- * @example <u-count-down ref="uCountDown" :timestamp="86400" :autoplay="false"></u-count-down>
- */
- export default {
- name: 'u-count-down',
- props: {
- // 倒计时的时间,秒为单位
- timestamp: {
- type: [Number, String],
- default: 0
- },
- // 是否自动开始倒计时
- autoplay: {
- type: Boolean,
- default: true
- },
- // 用英文冒号(colon)或者中文(zh)当做分隔符,false的时候为中文,如:"11:22"或"11时22秒"
- separator: {
- type: String,
- default: 'colon'
- },
- // 分隔符的大小,单位rpx
- separatorSize: {
- type: [Number, String],
- default: 30
- },
- // 分隔符颜色
- separatorColor: {
- type: String,
- default: "#303133"
- },
- // 字体颜色
- color: {
- type: String,
- default: '#303133'
- },
- // 字体大小,单位rpx
- fontSize: {
- type: [Number, String],
- default: 30
- },
- // 背景颜色
- bgColor: {
- type: String,
- default: '#fff'
- },
- // 数字框高度,单位rpx
- height: {
- type: [Number, String],
- default: 'auto'
- },
- // 是否显示数字框
- showBorder: {
- type: Boolean,
- default: false
- },
- // 边框颜色
- borderColor: {
- type: String,
- default: '#303133'
- },
- // 是否显示秒
- showSeconds: {
- type: Boolean,
- default: true
- },
- // 是否显示分钟
- showMinutes: {
- type: Boolean,
- default: true
- },
- // 是否显示小时
- showHours: {
- type: Boolean,
- default: true
- },
- // 是否显示“天”
- showDays: {
- type: Boolean,
- default: true
- },
- // 当"天"的部分为0时,不显示
- hideZeroDay: {
- type: Boolean,
- default: false
- }
- },
- watch: {
- // 监听时间戳的变化
- timestamp(newVal, oldVal) {
- // 如果倒计时间发生变化,清除定时器,重新开始倒计时
- this.clearTimer();
- this.start();
- }
- },
- data() {
- return {
- d: '00', // 天的默认值
- h: '00', // 小时的默认值
- i: '00', // 分钟的默认值
- s: '00', // 秒的默认值
- timer: null ,// 定时器
- seconds: 0, // 记录不停倒计过程中变化的秒数
- };
- },
- computed: {
- // 倒计时item的样式,item为分别的时分秒部分的数字
- itemStyle() {
- let style = {};
- if(this.height) {
- style.height = this.height + 'rpx';
- style.width = this.height + 'rpx';
- }
- if(this.showBorder) {
- style.borderStyle = 'solid';
- style.borderColor = this.borderColor;
- style.borderWidth = '1px';
- }
- if(this.bgColor) {
- style.backgroundColor = this.bgColor;
- }
- return style;
- },
- // 倒计时数字的样式
- letterStyle() {
- let style = {};
- if(this.fontSize) style.fontSize = this.fontSize + 'rpx';
- if(this.color) style.color = this.color;
- return style;
- }
- },
- mounted() {
- // 如果自动倒计时
- this.autoplay && this.timestamp && this.start();
- },
- methods: {
- // 倒计时
- start() {
- // 避免可能出现的倒计时重叠情况
- this.clearTimer();
- if (this.timestamp <= 0) return;
- this.seconds = Number(this.timestamp);
- this.formatTime(this.seconds);
- this.timer = setInterval(() => {
- this.seconds--;
- // 发出change事件
- this.$emit('change', this.seconds);
- if (this.seconds < 0) {
- return this.end();
- }
- this.formatTime(this.seconds);
- }, 1000);
- },
- // 格式化时间
- formatTime(seconds) {
- // 小于等于0的话,结束倒计时
- seconds <= 0 && this.end();
- let [day, hour, minute, second] = [0, 0, 0, 0];
- day = Math.floor(seconds / (60 * 60 * 24));
- // 判断是否显示“天”参数,如果不显示,将天部分的值,加入到小时中
- // hour为给后面计算秒和分等用的(基于显示天的前提下计算)
- hour = Math.floor(seconds / (60 * 60)) - day * 24;
- // showHour为需要显示的小时
- let showHour = null;
- if(this.showDays) {
- showHour = hour;
- } else {
- // 如果不显示天数,将“天”部分的时间折算到小时中去
- showHour = Math.floor(seconds / (60 * 60));
- }
- minute = Math.floor(seconds / 60) - hour * 60 - day * 24 * 60;
- second = Math.floor(seconds) - day * 24 * 60 * 60 - hour * 60 * 60 - minute * 60;
- // 如果小于10,在前面补上一个"0"
- showHour = showHour < 10 ? '0' + showHour : showHour;
- minute = minute < 10 ? '0' + minute : minute;
- second = second < 10 ? '0' + second : second;
- day = day < 10 ? '0' + day : day;
- this.d = day;
- this.h = showHour;
- this.i = minute;
- this.s = second;
- },
- // 停止倒计时
- end() {
- this.clearTimer();
- this.$emit('end', {});
- },
- // 清除定时器
- clearTimer() {
- if(this.timer) {
- // 清除定时器
- clearInterval(this.timer);
- this.timer = null;
- }
- }
- },
- beforeDestroy() {
- clearInterval(this.timer);
- this.timer = null;
- }
- };
- </script>
- <style scoped lang="scss">
- @import "../../libs/css/style.components.scss";
- .u-countdown {
- /* #ifndef APP-NVUE */
- display: inline-flex;
- /* #endif */
- align-items: center;
- }
- .u-countdown-item {
- @include vue-flex;
- align-items: center;
- justify-content: center;
- padding: 2rpx;
- border-radius: 6rpx;
- white-space: nowrap;
- transform: translateZ(0);
- }
- .u-countdown-time {
- margin: 0;
- padding: 0;
- line-height: 1;
- }
- .u-countdown-colon {
- @include vue-flex;
- justify-content: center;
- padding: 0 5rpx;
- line-height: 1;
- align-items: center;
- padding-bottom: 4rpx;
- }
- .u-countdown-scale {
- transform: scale(0.9);
- transform-origin: center center;
- }
- </style>
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