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这篇文章给大家分享的是有关微信小程序中如何实现获取验证码倒计时60s功能的内容。小编觉得挺实用的,因此分享给大家做个参考,一起跟随小编过来看看吧。
微信小程序倒计时获取验证码的具体代码,供大家参考,具体内容如下
1、工具类(引用微信小程序提供的工具类)
countdown.js
class Countdown { constructor(options = {}) { Object.assign(this, { options, }) this.__init() } /** * 初始化 */ __init() { this.page = getCurrentPages()[getCurrentPages().length - 1] this.setData = this.page.setData.bind(this.page) this.restart(this.options) } /** * 默认参数 */ setDefaults() { return { date: `June 7, 2087 15:03:25`, refresh: 1000, offset: 0, onEnd() {}, render(date) {}, } } /** * 合并参数 */ mergeOptions(options) { const defaultOptions = this.setDefaults() for (let i in defaultOptions) { if (defaultOptions.hasOwnProperty(i)) { this.options[i] = typeof options[i] !== `undefined` ? options[i] : defaultOptions[i] if (i === `date` && typeof this.options.date !== `object`) { this.options.date = new Date(this.options.date) } if (typeof this.options[i] === `function`) { this.options[i] = this.options[i].bind(this) } } } if (typeof this.options.date !== `object`) { this.options.date = new Date(this.options.date) } } /** * 计算日期差 */ getDiffDate() { let diff = (this.options.date.getTime() - Date.now() + this.options.offset) / 1000 let dateData = { years: 0, days: 0, hours: 0, min: 0, sec: 0, millisec: 0, } if (diff <= 0) { if (this.interval) { this.stop() this.options.onEnd() } return dateData } if (diff >= (365.25 * 86400)) { dateData.years = Math.floor(diff / (365.25 * 86400)) diff -= dateData.years * 365.25 * 86400 } if (diff >= 86400) { dateData.days = Math.floor(diff / 86400) diff -= dateData.days * 86400 } if (diff >= 3600) { dateData.hours = Math.floor(diff / 3600) diff -= dateData.hours * 3600 } if (diff >= 60) { dateData.min = Math.floor(diff / 60) diff -= dateData.min * 60 } dateData.sec = Math.round(diff) dateData.millisec = diff % 1 * 1000 return dateData } /** * 补零 */ leadingZeros(num, length = 2) { num = String(num) if (num.length > length) return num return (Array(length + 1).join(`0`) + num).substr(-length) } /** * 更新组件 */ update(newDate) { this.options.date = typeof newDate !== `object` ? new Date(newDate) : newDate this.render() return this } /** * 停止倒计时 */ stop() { if (this.interval) { clearInterval(this.interval) this.interval = !1 } return this } /** * 渲染组件 */ render() { this.options.render(this.getDiffDate()) return this } /** * 启动倒计时 */ start() { if (this.interval) return !1 this.render() if (this.options.refresh) { this.interval = setInterval(() => { this.render() }, this.options.refresh) } return this } /** * 更新offset */ updateOffset(offset) { this.options.offset = offset return this } /** * 重启倒计时 */ restart(options = {}) { this.mergeOptions(options) this.interval = !1 this.start() return this } }
export default Countdown
2、WXML部分:
<view class="weui-cell__ft"> <view class="weui-vcode-btn" bindtap="vcode">{{ c2 || '获取验证码' }}</view> </view>
3、JS部分:
import $wuxCountDown from 'countdown/countdown' export { $wuxCountDown, } import { $wuxCountDown } from '../../components/wux' vcode: function () { if (this.c2 && this.c2.interval) return !1 this.c2 = new $wuxCountDown({ date: +(new Date) + 60000, onEnd() { this.setData({ c2: '重新获取验证码', }) }, render(date) { const sec = this.leadingZeros(date.sec, 2) + ' 秒后重发 ' date.sec !== 0 && this.setData({ c2: sec, }) }, }) }
感谢各位的阅读!关于“微信小程序中如何实现获取验证码倒计时60s功能”这篇文章就分享到这里了,希望以上内容可以对大家有一定的帮助,让大家可以学到更多知识,如果觉得文章不错,可以把它分享出去让更多的人看到吧!
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