更新大理市民卡app
diff --git a/uview-ui/components/u-count-to/u-count-to.vue b/uview-ui/components/u-count-to/u-count-to.vue
new file mode 100644
index 0000000..053dc5f
--- /dev/null
+++ b/uview-ui/components/u-count-to/u-count-to.vue
@@ -0,0 +1,241 @@
+<template>
+ <view
+ class="u-count-num"
+ :style="{
+ fontSize: fontSize + 'rpx',
+ fontWeight: bold ? 'bold' : 'normal',
+ color: color
+ }"
+ >
+ {{ displayValue }}
+ </view>
+</template>
+
+<script>
+/**
+ * countTo 数字滚动
+ * @description 该组件一般用于需要滚动数字到某一个值的场景，目标要求是一个递增的值。
+ * @tutorial https://www.uviewui.com/components/countTo.html
+ * @property {String Number} start-val 开始值
+ * @property {String Number} end-val 结束值
+ * @property {String Number} duration 滚动过程所需的时间，单位ms（默认2000）
+ * @property {Boolean} autoplay 是否自动开始滚动（默认true）
+ * @property {String Number} decimals 要显示的小数位数，见官网说明（默认0）
+ * @property {Boolean} use-easing 滚动结束时，是否缓动结尾，见官网说明（默认true）
+ * @property {String} separator 千位分隔符，见官网说明
+ * @property {String} color 字体颜色（默认#303133）
+ * @property {String Number} font-size 字体大小，单位rpx（默认50）
+ * @property {Boolean} bold 字体是否加粗（默认false）
+ * @event {Function} end 数值滚动到目标值时触发
+ * @example <u-count-to ref="uCountTo" :end-val="endVal" :autoplay="autoplay"></u-count-to>
+ */
+export default {
+ name: 'u-count-to',
+ props: {
+ // 开始的数值，默认从0增长到某一个数
+ startVal: {
+ type: [Number, String],
+ default: 0
+ },
+ // 要滚动的目标数值，必须
+ endVal: {
+ type: [Number, String],
+ default: 0,
+ required: true
+ },
+ // 滚动到目标数值的动画持续时间，单位为毫秒（ms）
+ duration: {
+ type: [Number, String],
+ default: 2000
+ },
+ // 设置数值后是否自动开始滚动
+ autoplay: {
+ type: Boolean,
+ default: true
+ },
+ // 要显示的小数位数
+ decimals: {
+ type: [Number, String],
+ default: 0
+ },
+ // 是否在即将到达目标数值的时候，使用缓慢滚动的效果
+ useEasing: {
+ type: Boolean,
+ default: true
+ },
+ // 十进制分割
+ decimal: {
+ type: [Number, String],
+ default: '.'
+ },
+ // 字体颜色
+ color: {
+ type: String,
+ default: '#303133'
+ },
+ // 字体大小
+ fontSize: {
+ type: [Number, String],
+ default: 50
+ },
+ // 是否加粗字体
+ bold: {
+ type: Boolean,
+ default: false
+ },
+ // 千位分隔符，类似金额的分割(￥23,321.05中的",")
+ separator: {
+ type: String,
+ default: ''
+ }
+ },
+ data() {
+ return {
+ localStartVal: this.startVal,
+ displayValue: this.formatNumber(this.startVal),
+ printVal: null,
+ paused: false, // 是否暂停
+ localDuration: Number(this.duration),
+ startTime: null, // 开始的时间
+ timestamp: null, // 时间戳
+ remaining: null, // 停留的时间
+ rAF: null,
+ lastTime: 0 // 上一次的时间
+ };
+ },
+ computed: {
+ countDown() {
+ return this.startVal > this.endVal;
+ }
+ },
+ watch: {
+ startVal() {
+ this.autoplay && this.start();
+ },
+ endVal() {
+ this.autoplay && this.start();
+ }
+ },
+ mounted() {
+ this.autoplay && this.start();
+ },
+ methods: {
+ easingFn(t, b, c, d) {
+ return (c * (-Math.pow(2, (-10 * t) / d) + 1) * 1024) / 1023 + b;
+ },
+ requestAnimationFrame(callback) {
+ const currTime = new Date().getTime();
+ // 为了使setTimteout的尽可能的接近每秒60帧的效果
+ const timeToCall = Math.max(0, 16 - (currTime - this.lastTime));
+ const id = setTimeout(() => {
+ callback(currTime + timeToCall);
+ }, timeToCall);
+ this.lastTime = currTime + timeToCall;
+ return id;
+ },
+
+ cancelAnimationFrame(id) {
+ clearTimeout(id);
+ },
+ // 开始滚动数字
+ start() {
+ this.localStartVal = this.startVal;
+ this.startTime = null;
+ this.localDuration = this.duration;
+ this.paused = false;
+ this.rAF = this.requestAnimationFrame(this.count);
+ },
+ // 暂定状态，重新再开始滚动；或者滚动状态下，暂停
+ reStart() {
+ if (this.paused) {
+ this.resume();
+ this.paused = false;
+ } else {
+ this.stop();
+ this.paused = true;
+ }
+ },
+ // 暂停
+ stop() {
+ this.cancelAnimationFrame(this.rAF);
+ },
+ // 重新开始(暂停的情况下)
+ resume() {
+ this.startTime = null;
+ this.localDuration = this.remaining;
+ this.localStartVal = this.printVal;
+ this.requestAnimationFrame(this.count);
+ },
+ // 重置
+ reset() {
+ this.startTime = null;
+ this.cancelAnimationFrame(this.rAF);
+ this.displayValue = this.formatNumber(this.startVal);
+ },
+ count(timestamp) {
+ if (!this.startTime) this.startTime = timestamp;
+ this.timestamp = timestamp;
+ const progress = timestamp - this.startTime;
+ this.remaining = this.localDuration - progress;
+ if (this.useEasing) {
+ if (this.countDown) {
+ this.printVal = this.localStartVal - this.easingFn(progress, 0, this.localStartVal - this.endVal, this.localDuration);
+ } else {
+ this.printVal = this.easingFn(progress, this.localStartVal, this.endVal - this.localStartVal, this.localDuration);
+ }
+ } else {
+ if (this.countDown) {
+ this.printVal = this.localStartVal - (this.localStartVal - this.endVal) * (progress / this.localDuration);
+ } else {
+ this.printVal = this.localStartVal + (this.endVal - this.localStartVal) * (progress / this.localDuration);
+ }
+ }
+ if (this.countDown) {
+ this.printVal = this.printVal < this.endVal ? this.endVal : this.printVal;
+ } else {
+ this.printVal = this.printVal > this.endVal ? this.endVal : this.printVal;
+ }
+ this.displayValue = this.formatNumber(this.printVal);
+ if (progress < this.localDuration) {
+ this.rAF = this.requestAnimationFrame(this.count);
+ } else {
+ this.$emit('end');
+ }
+ },
+ // 判断是否数字
+ isNumber(val) {
+ return !isNaN(parseFloat(val));
+ },
+ formatNumber(num) {
+ // 将num转为Number类型，因为其值可能为字符串数值，调用toFixed会报错
+ num = Number(num);
+ num = num.toFixed(Number(this.decimals));
+ num += '';
+ const x = num.split('.');
+ let x1 = x[0];
+ const x2 = x.length > 1 ? this.decimal + x[1] : '';
+ const rgx = /(\d+)(\d{3})/;
+ if (this.separator && !this.isNumber(this.separator)) {
+ while (rgx.test(x1)) {
+ x1 = x1.replace(rgx, '$1' + this.separator + '$2');
+ }
+ }
+ return x1 + x2;
+ },
+ destroyed() {
+ this.cancelAnimationFrame(this.rAF);
+ }
+ }
+};
+</script>
+
+<style lang="scss" scoped>
+@import "../../libs/css/style.components.scss";
+
+.u-count-num {
+ /* #ifndef APP-NVUE */
+ display: inline-flex;
+ /* #endif */
+ text-align: center;
+}
+</style>