微信小程序實現手機獲取驗證碼倒計時60s

<view class="all">
  <!-- 手機 -->
  <view class="tel">
    <!-- 手機圖標 -->
    <view class="icon_tel">
      <image class="tel_image" src="https://image.flaticon.com/icons/svg/660/660439.svg"></image>
      <text class="tel_words">手機</text>
    </view>
    <!-- 內容 -->
    <view class="content_tel">
      <view class="adress">
        <text>＋86</text>
      </view>
      <view class="sign">
        <text>▼</text>
      </view>
      <view>
        <input class="input_tel" placeholder="請輸入手機號" focus="{{focus}}"  value="{{tel}}" bindinput="watchTel"/>
      </view>
    </view>
    <!-- 下劃線 -->
    <view class="line_adress"></view>
    <view class="line_input"></view>
  </view>
 
  <!-- 驗證碼 -->
  <view class="VerificationCode ">
    <!-- 驗證碼圖標 -->
    <view class="icon_VerificationCode">
      <image class="tel_image" src="https://image.flaticon.com/icons/png/128/179/179640.png"></image>
      <text class="tel_words">驗證碼</text>
    </view>
 
    <!-- 內容 -->
    <view class="content_VerificationCode">
      <view>
        <input class="input_VerificationCode" placeholder="請輸入驗證碼" focus="{{focus}}"  value="{{VerificationCode}}" bindinput="watchVerificationCode"/>
      </view>
    </view>
    <!-- 點擊獲取驗證碼 -->
    <view>
      <button class="button_VerificationCode" size="mini" style="background-color:{{color}}" disabled="{{disabled}}" bindtap="bindButtonTap">
        <view class="world">
          <text class="button_world">{{text}}</text>
        </view>
      </button> 
    </view>
    <!-- 下劃線 -->
    <view class="line_VerificationCode"></view>
  </view>
 
  <!-- 提交按鈕 -->
  <view>
    <button class="button_submission" type="primary" size="default" bindtap="ChangeTel">
      <text class="button_submissionWorld">提交</text>
    </button>
</view>

.all{
  height: 100vh;
  width: 100vw;
  /* border: 2rpx solid blue; */
}
 
.tel{
  position: relative;
  top: 10vh;
  left: 10vw;
  height: 16vh;
  width: 80vw;
  /* border: 2rpx solid red; */
}
 
.icon_tel{
  position: absolute;
  top: 1vh;
  left: 2vh;
  height: 6vh;
  width: 24vw;
  /* border: 2rpx solid red; */
}
 
.tel_image{
  position: absolute;
  height: 6vh;
  width: 7vw;
  /* border: 2rpx solid red; */
}
 
.tel_words{
  position: absolute;
  left: 9vw;
  height: 6vh;
  width: 15vw;
  top: 1vh;
  /* border: 2rpx solid red; */
}
 
.content_tel{
  position: absolute;
  top: 8vh;
  left: 2vw;
  height: 6vh;
  width: 75vw;
  /* border: 2rpx solid blue; */
}
 
.line_adress{
  position: absolute;
  height: 3rpx;
  width: 21vw;
  left: 2vw;
  bottom: 0.5vh;
  background:gainsboro;
}
 
.line_input{
  position: absolute;
  height: 3rpx;
  width: 47vw;
  left: 25vw;
  bottom: 0.5vh;
  background:gainsboro;
}
 
.line_VerificationCode{
  position: absolute;
  height: 3rpx;
  width: 47vw;
  left: 2vw;
  bottom: 0.5vh;
  background:gainsboro;
}
 
.adress{
  position: absolute;
  top: 1vh;
  height: 5vh;
  width: 20vw;
  /* border: 2rpx solid gold; */
  text-align: center;
}
 
.sign{
  position: absolute;
  height: 5vh;
  width: 4vw;
  top: 2vh;
  left: 20vw;
  /* border: 2rpx solid greenyellow; */
  text-align: center;
  align-items: center;
  font-size: 22rpx;
}
 
.input_tel{
  position: absolute;
  height: 6vh;
  width: 47vw;
  left: 28vw;
  /* border: 2rpx solid red; */
}
 
.input_VerificationCode{
  position: absolute;
  height: 6vh;
  width: 47vw;
  left: 2vw;
}
 
.VerificationCode{
  position: relative;
  top: 15vh;
  left: 10vw;
  height: 16vh;
  width: 80vw;
  /* border: 2rpx solid red; */
}
 
.icon_VerificationCode{
  position: absolute;
  top: 1vh;
  left: 3vh;
  height: 6vh;
  width: 24vw;
  /* border: 2rpx solid red; */
}
 
.content_VerificationCode{
  position: absolute;
  top: 8vh;
  left: 2vw;
  height: 6vh;
  width: 47vw;
  /* border: 2rpx solid blue; */
}
 
.button_VerificationCode{
  /* border: 2rpx solid red; */
  position: absolute;
  top: 7.5vh;
  left: 50vw;
  height: 8vh;
  width: 32vw;
  border-radius:60rpx;
  background: red;
}
 
.world{
  position: absolute;
  height: 70rpx;
  width: 160rpx;
  top: 10rpx;
  left: 40rpx;
}
 
.button_world{
  font-size: 31rpx;
  text-align: center;
  align-items: center;
  color: white;
}
 
.button_submission{
  position: absolute;
  height: 7vh;
  width: 60vw;
  top: 55vh;
  left: 20vw;
  /* border: 2rpx solid red; */
}
 
.button_submissionWorld{
  position: absolute;
  left: 26vw;
  font-size: 35rpx;
  /* border: 2rpx solid red; */
  top: -2rpx;
}

var qcloud = require('../../vendor/wafer2-client-sdk/index')
var config = require('../../config')
var util = require('../../utils/util.js')
 
Page({
  data: {
    VerificationCode: '',
    text:'獲取驗證碼',//按鈕文字
    currentTime: 61, //倒計時
    disabled: false, //按鈕是否禁用
    tel: '' //獲取到的手機欄中的值
  },
 
  // 手機號監聽輸入
  watchTel: function (event) {
    console.log(event);
    this.data.tel = event.detail.value
    this.setData({
      tel: event.detail.value
    })
  },
 
  // 驗證碼監聽輸入
  watchVerificationCode: function (event) {
    console.log(event);
    this.data.VerificationCode = event.detail.value
    this.setData({
      VerificationCode: event.detail.value
    })
  },
 
  //提交修改密碼表單
  ChangeTel: function () {
    var that = this
    if (this.data.VerificationCode != 10086) {
      wx.showToast({
        icon: 'none',
        title: '驗證碼輸入錯誤！'
      })
    }
    else {
      util.showBusy('請求中...')
      that.data.userpwd = that.data.renewpwd
      qcloud.request({
        url: `${config.service.host}/weapp/UserChangeTel`,
        header: {
          'content-type': 'application/x-www-form-urlencoded'
        },
        method: "POST",
        data: {
          tel: that.data.tel
        },
        login: false,
        success(result) {
          util.showSuccess('請求成功完成')
          that.setData({
            requestResult: JSON.stringify(result.data)
          })
          console.log(result);
        },
        fail(error) {
          util.showModel('請求失敗', error);
          console.log('request fail', error);
        }
      }),
        that.setData({
          tel: '',
          VerificationCode: ''
        })
    }
  },
 
  //獲取驗證碼按鈕
  bindButtonTap: function () {
    var that = this;
    that.setData({
      disabled: true, //隻要點擊瞭按鈕就讓按鈕禁用 （避免正常情況下多次觸發定時器事件）
      color: 'grey',
    })
    var tel = that.data.tel;
    var currentTime = that.data.currentTime
    //把手機號跟倒計時值變例成js值
    var warn = null;
    //warn為當手機號為空或格式不正確時提示用戶的文字，默認為空
    if (tel == '') {
      warn = "號碼不能為空";
    }
    else if (tel.trim().length != 11 || !/^1[3|4|5|6|7|8|9]\d{9}$/.test(tel)) {
      warn = "手機號格式不正確";
    }
    else {
      //當手機號正確的時候提示用戶短信驗證碼已經發送
      wx.showToast({
        title: '短信驗證碼已發送',
        icon: 'none',
        duration: 2000
      });
      //設置一分鐘的倒計時
      var interval = setInterval(function () {
        currentTime--;
        //每執行一次讓倒計時秒數減一
        that.setData({
          text: currentTime + 's', //按鈕文字變成倒計時對應秒數
        })
        //如果當秒數小於等於0時 停止計時器 且按鈕文字變成重新發送 且按鈕變成可用狀態 倒計時的秒數也要恢復成默認秒數 即讓獲取驗證碼的按鈕恢復到初始化狀態隻改變按鈕文字
        if (currentTime <= 0) {
          clearInterval(interval)
          that.setData({
            text: '重新發送',
            currentTime: 61,
            disabled: false,
            color: 'red'
          })
        }
      }, 1000);
    };
    //判斷 當提示錯誤信息文字不為空 即手機號輸入有問題時提示用戶錯誤信息 並且提示完之後一定要讓按鈕為可用狀態 因為點擊按鈕時設置瞭隻要點擊瞭按鈕就讓按鈕禁用的情況
    if (warn != null) {
      wx.showModal({
        title: '提示',
        content: warn
      })
      that.setData({
        disabled: false,
        color: 'red'
      })
      return;
    };
  },
 
})