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<template>
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<u-popup :maskCloseAble="maskCloseAble" mode="bottom" :popup="false" v-model="value" length="auto"
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:safeAreaInsetBottom="safeAreaInsetBottom" @close="close" :z-index="uZIndex">
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<view class="u-datetime-picker">
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<view class="u-picker-header" @touchmove.stop.prevent="">
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<view class="u-btn-picker u-btn-picker--tips" :style="{ color: cancelColor }" hover-class="u-opacity"
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:hover-stay-time="150" @tap="getResult('cancel')">{{cancelText}}</view>
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<view class="u-picker__title">{{ title }}</view>
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<view class="u-btn-picker u-btn-picker--primary" :style="{ color: moving ? cancelColor : confirmColor }"
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hover-class="u-opacity" :hover-stay-time="150" @touchmove.stop="" @tap.stop="getResult('confirm')">
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{{confirmText}}
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</view>
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</view>
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<view class="u-picker-body">
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<picker-view :value="valueArr" @change="change" class="u-picker-view" @pickstart="pickstart"
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@pickend="pickend">
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<picker-view-column v-if="!reset">
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<view class="u-column-item" v-for="(item, index) in hours" :key="index">
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{{ item }}
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<text class="u-text" v-if="showTimeTag">时</text>
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</view>
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</picker-view-column>
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<picker-view-column v-if="!reset">
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<view class="u-column-item" v-for="(item, index) in minutes" :key="index">
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{{ item }}
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<text class="u-text" v-if="showTimeTag">分</text>
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</view>
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</picker-view-column>
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<picker-view-column v-if="!reset">
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<view class="u-column-item" v-for="(item, index) in seconds" :key="index">
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{{ item }}
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<text class="u-text" v-if="showTimeTag">秒</text>
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</view>
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</picker-view-column>
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<picker-view-column v-if="!reset">
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<view class="u-column-item">-</view>
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</picker-view-column>
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<picker-view-column v-if="!reset">
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<view class="u-column-item" v-for="(item, index) in hours" :key="index">
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{{ item }}
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<text class="u-text" v-if="showTimeTag">时</text>
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</view>
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</picker-view-column>
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<picker-view-column v-if="!reset">
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<view class="u-column-item" v-for="(item, index) in minutes" :key="index">
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{{ item }}
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<text class="u-text" v-if="showTimeTag">分</text>
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</view>
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</picker-view-column>
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<picker-view-column v-if="!reset">
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<view class="u-column-item" v-for="(item, index) in seconds" :key="index">
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{{ item }}
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<text class="u-text" v-if="showTimeTag">秒</text>
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</view>
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</picker-view-column>
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</picker-view>
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</view>
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</view>
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</u-popup>
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</template>
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<script>
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/**
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* time-range弹出选择器
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* @property {String Number} start-year 可选的开始年份（默认1950）
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* @property {String Number} end-year 可选的结束年份（默认2050）
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* @property {Boolean} safe-area-inset-bottom 是否开启底部安全区适配（默认false）
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* @property {Boolean} show-time-tag 时间模式时，是否显示后面的年月日中文提示
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* @property {String} cancel-color 取消按钮的颜色（默认#606266）
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* @property {String} confirm-color 确认按钮的颜色（默认#2979ff）
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* @property {String} default-time 默认选中的时间
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* @property {String} confirm-text 确认按钮的文字
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* @property {String} cancel-text 取消按钮的文字
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* @property {Boolean} mask-close-able 是否允许通过点击遮罩关闭Picker（默认true）
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* @property {String Number} z-index 弹出时的z-index值（默认1075）
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* @property {Array} default-selector 数组形式，其中每一项表示选择了range对应项中的第几个
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* @event {Function} confirm 点击确定按钮，返回当前选择的值
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* @event {Function} cancel 点击取消按钮，返回当前选择的值
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*/
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export default {
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name: 'u-picker',
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props: {
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// 年份开始时间
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startYear: {
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type: [String, Number],
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default: 1950
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},
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// 年份结束时间
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endYear: {
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type: [String, Number],
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default: 2050
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},
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// "取消"按钮的颜色
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cancelColor: {
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type: String,
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default: '#606266'
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},
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// "确定"按钮的颜色
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confirmColor: {
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type: String,
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default: '#2979ff'
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},
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// 默认显示的时间
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defaultTime: {
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type: Array,
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default: () => []
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},
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// 时间模式时，是否显示后面的年月日中文提示
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showTimeTag: {
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type: Boolean,
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default: true
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},
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safeAreaInsetBottom: {
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type: Boolean,
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default: false
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},
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// 是否允许通过点击遮罩关闭Picker
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maskCloseAble: {
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type: Boolean,
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default: true
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},
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// 通过双向绑定控制组件的弹出与收起
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value: {
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type: Boolean,
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default: false
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},
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// 弹出的z-index值
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zIndex: {
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type: [String, Number],
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default: 0
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},
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// 顶部标题
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title: {
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type: String,
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default: ''
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},
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// 取消按钮的文字
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cancelText: {
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type: String,
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default: '取消'
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},
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// 确认按钮的文字
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confirmText: {
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type: String,
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default: '确认'
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}
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},
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data() {
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return {
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hours: [],
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minutes: [],
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seconds: [],
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hour: 0,
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minute: 0,
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second: 0,
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reset: false,
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startDate: '',
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endDate: '',
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valueArr: [0, 0, 0, 0, 0, 0, 0],
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moving: false // 列是否还在滑动中，微信小程序如果在滑动中就点确定，结果可能不准确
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};
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},
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mounted() {
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this.init();
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},
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computed: {
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propsChange() {
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// 引用这几个变量，是为了监听其变化
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return `${this.defaultTime}`;
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},
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uZIndex() {
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// 如果用户有传递z-index值，优先使用
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return this.zIndex ? this.zIndex : this.$u.zIndex.popup;
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}
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},
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watch: {
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propsChange() {
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this.reset = true;
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setTimeout(() => this.init(), 10);
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},
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// 微信和QQ小程序由于一些奇怪的原因(故同时对所有平台均初始化一遍)，需要重新初始化才能显示正确的值
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value(n) {
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if (n) {
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this.reset = true;
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setTimeout(() => this.init(), 10);
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}
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}
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},
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methods: {
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// 标识滑动开始，只有微信小程序才有这样的事件
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pickstart() {
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// #ifdef MP-WEIXIN
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this.moving = true;
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// #endif
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},
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// 标识滑动结束
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pickend() {
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// #ifdef MP-WEIXIN
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this.moving = false;
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// #endif
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},
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// 小于10前面补0，用于月份，日期，时分秒等
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formatNumber(num) {
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return +num < 10 ? '0' + num : String(num);
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},
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// 生成递进的数组
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generateArray: function(start, end) {
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// 转为数值格式，否则用户给end-year等传递字符串值时，下面的end+1会导致字符串拼接，而不是相加
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start = Number(start);
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end = Number(end);
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end = end > start ? end : start;
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// 生成数组，获取其中的索引，并剪出来
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let list = [...Array(end + 1).keys()].slice(start)
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list = list.map(o => this.formatNumber(o))
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return list;
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},
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getIndex: function(arr, val) {
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let index = arr.indexOf(val);
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// 如果index为-1(即找不到index值)，~(-1)=-(-1)-1=0，导致条件不成立
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return ~index ? index : 0;
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},
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//日期时间处理
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initTimeValue() {
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if (this.defaultTime.length === 2) {
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const arr1 = this.defaultTime[0].split(':')
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const arr2 = this.defaultTime[1].split(':')
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this.valueArr[0] = this.getIndex(this.hours, arr1[0])
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this.valueArr[1] = this.getIndex(this.minutes, arr1[1])
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this.valueArr[2] = this.getIndex(this.seconds, arr1[2])
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this.valueArr[4] = this.getIndex(this.hours, arr2[0])
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this.valueArr[5] = this.getIndex(this.minutes, arr2[1])
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this.valueArr[6] = this.getIndex(this.seconds, arr2[2])
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} else {
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const time = new Date()
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const currHour = this.formatNumber(time.getHours())
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const currMinute = this.formatNumber(time.getMinutes())
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const currSecond = this.formatNumber(time.getSeconds())
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this.valueArr[0] = this.getIndex(this.hours, currHour)
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this.valueArr[4] = this.getIndex(this.hours, currHour)
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this.valueArr[1] = this.getIndex(this.minutes, currMinute)
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this.valueArr[5] = this.getIndex(this.minutes, currMinute)
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this.valueArr[2] = this.getIndex(this.seconds, currSecond)
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this.valueArr[6] = this.getIndex(this.seconds, currSecond)
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}
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},
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init() {
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this.valueArr = [0, 0, 0, 0, 0, 0, 0];
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this.reset = false;
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this.hours = this.generateArray(0, 23);
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this.minutes = this.generateArray(0, 59);
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this.seconds = this.generateArray(0, 59);
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this.initTimeValue();
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this.$forceUpdate();
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},
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close() {
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this.$emit('input', false);
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},
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// 用户更改picker的列选项
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change(e) {
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this.valueArr = e.detail.value;
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},
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// 用户点击确定按钮
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getResult(event = null) {
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// #ifdef MP-WEIXIN
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if (this.moving) return;
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// #endif
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const valueArr = this.valueArr.map(o => this.formatNumber(o))
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const item1 = `${valueArr[0]}:${valueArr[1]}:${valueArr[2]}`
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const item2 = `${valueArr[4]}:${valueArr[5]}:${valueArr[6]}`
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const result = [item1, item2]
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if (event) this.$emit(event, result);
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this.close();
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},
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}
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};
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</script>
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<style lang="scss" scoped>
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@import "@/uview-ui/libs/css/style.components.scss";
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.u-datetime-picker {
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position: relative;
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z-index: 999;
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}
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.u-picker-view {
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height: 100%;
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box-sizing: border-box;
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}
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.u-picker-header {
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width: 100%;
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height: 90rpx;
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padding: 0 40rpx;
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@include vue-flex;
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justify-content: space-between;
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align-items: center;
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box-sizing: border-box;
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font-size: 30rpx;
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background: #fff;
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position: relative;
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}
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.u-picker-header::after {
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content: '';
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position: absolute;
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border-bottom: 1rpx solid #eaeef1;
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-webkit-transform: scaleY(0.5);
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transform: scaleY(0.5);
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bottom: 0;
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right: 0;
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left: 0;
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}
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.u-picker__title {
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color: $u-content-color;
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}
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.u-picker-body {
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width: 100%;
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height: 500rpx;
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overflow: hidden;
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background-color: #fff;
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}
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.u-column-item {
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@include vue-flex;
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align-items: center;
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justify-content: center;
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font-size: 32rpx;
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color: $u-main-color;
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padding: 0 8rpx;
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}
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.u-text {
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font-size: 24rpx;
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padding-left: 8rpx;
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}
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.u-btn-picker {
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padding: 16rpx;
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box-sizing: border-box;
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text-align: center;
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text-decoration: none;
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}
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.u-opacity {
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opacity: 0.5;
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}
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.u-btn-picker--primary {
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color: $u-type-primary;
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}
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.u-btn-picker--tips {
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color: $u-tips-color;
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}
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</style>
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