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| <template>
| <view class="tn-count-scroll-class tn-count-scroll">
| <view
| v-for="(item, index) in columns"
| :key="index"
| class="tn-count-scroll__box"
| :style="{
| width: $t.string.getLengthUnitValue(width),
| height: heightPxValue + 'px'
| }"
| >
| <view
| class="tn-count-scroll__column"
| :style="{
| transform: `translate3d(0, -${keys[index] * heightPxValue}px, 0)`,
| transitionDuration: `${duration}s`
| }"
| >
| <view
| v-for="(value, value_index) in item"
| :key="value_index"
| class="tn-count-scroll__column__item"
| :class="[fontColorClass]"
| :style="{
| height: heightPxValue + 'px',
| lineHeight: heightPxValue + 'px',
| fontSize: fontSizeStyle || '32rpx',
| fontWeight: bold ? 'bold': 'normal',
| color: fontColorStyle || '#080808'
| }"
| >
| {{ value }}
| </view>
| </view>
| </view>
| </view>
| </template>
|
| <script>
| import componentsColorMixin from '../../libs/mixin/components_color.js'
| export default {
| name: 'tn-count-scroll',
| mixins: [componentsColorMixin],
| props: {
| value: {
| type: Number,
| default: 0
| },
| // 行高
| height: {
| type: Number,
| default: 32
| },
| // 单个字的宽度
| width: {
| type: [String, Number],
| default: 'auto'
| },
| // 是否加粗
| bold: {
| type: Boolean,
| default: false
| },
| // 持续时间
| duration: {
| type: Number,
| default: 1.2
| },
| // 十分位分割符
| decimalSeparator: {
| type: String,
| default: '.'
| },
| // 千分位分割符
| thousandthsSeparator: {
| type: String,
| default: ''
| }
| },
| computed: {
| heightPxValue() {
| return uni.upx2px(this.height || 0)
| }
| },
| data() {
| return {
| // 每列的数据
| columns: [],
| // 每列对应值所在的滚动位置
| keys: []
| }
| },
| watch: {
| value(val) {
| this.initColumn(val)
| }
| },
| created() {
| // 为了达到一进入就有滚动效果，延迟执行初始化
| this.initColumn()
| setTimeout(() => {
| this.initColumn(this.value)
| }, 20)
| },
| methods: {
| // 初始化每一列的数据
| initColumn(val) {
| val = val + ''
| let digit = val.length,
| columnArray = [],
| rows = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9'];
| for (let i = 0; i < digit; i++) {
| if (val[i] === this.decimalSeparator || val[i] === this.thousandthsSeparator) {
| columnArray.push(val[i])
| } else {
| columnArray.push(rows)
| }
| }
| this.columns = columnArray
| this.roll(val)
| },
| // 滚动处理
| roll(value) {
| let valueArray = value.toString().split(''),
| lengths = this.columns.length,
| indexs = [];
|
| while (valueArray.length) {
| let figure = valueArray.pop()
| if (figure === this.decimalSeparator || figure === this.thousandthsSeparator) {
| indexs.unshift(0)
| } else {
| indexs.unshift(Number(figure))
| }
| }
| while(indexs.length < lengths) {
| indexs.unshift(0)
| }
| this.keys = indexs
| }
| }
| }
| </script>
|
| <style lang="scss" scoped>
|
| .tn-count-scroll {
| display: inline-flex;
| align-items: center;
| justify-content: space-between;
|
| &__box {
| overflow: hidden;
| }
|
| &__column {
| transform: translate3d(0, 0, 0);
| display: flex;
| align-items: center;
| justify-content: center;
| flex-direction: column;
| transition-timing-function: cubic-bezier(0, 1, 0, 1);
|
| &__item {
| display: flex;
| align-items: center;
| justify-content: center;
| }
| }
| }
| </style>
|
|
