lcb/pages/signup/code.js

// pages/signup/code.js
import _ from '../../commons/js/commons'
const timer = require('../../commons/js/lib/wxTimer');
var wxTimer = null
const app = getApp()

Page({

  /**
   * 页面的初始数据
   */
  data: {
    navBar: {
      title: '客户签到',
      txtColor: '#fff',
      bgColor: '#1a1c26',
      isShowBg: true,
      showHomeIcon: true
    },
    qrcode_img: '',
    qrcode_count_time: 30,
    wxTimerList: {},
    wxTimer: null,
    nowTime: "",
    item: {},
    info: "",
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad(options) {
    let that = this
    wx.getScreenBrightness({
      success: (res) => {
        that.setData({
          ori_screen_bright: res.value
        })
      }
    })
  },

  /**
   * 生命周期函数--监听页面显示
   */
  onShow() {
    this.getappSignConf()
  },

  onHide() {
    if (wxTimer) {
      wxTimer.stop();
      wxTimer = null
    }
    this.setData({
      wxTimerList: {},
      wxTimer: null,
    })
    this.resetScreenBright()
  },

  /**
   * 生命周期函数--监听页面卸载
   */
  onUnload() {
    if (wxTimer) {
      wxTimer.stop();
      wxTimer = null
    }
    this.setData({
      wxTimerList: {},
      wxTimer: null,
    })
    this.resetScreenBright()
  },

  /**
   * 接口请求小程序码
   */
  getappSignConf() {
    if (this.loading) return
    wx.showLoading({
      title: '重新生成中...',
      mask: true
    })
    if (wxTimer) {
      wxTimer.stop();
      wxTimer = null
    }
    this.setData({
      wxTimerList: {},
      wxTimer: null,
      loading: true
    })

    /////接口方法
    _.apiQuery.getappSignConf().then(res => {
      this.setData({
        qrcode_img: res.data.qcode,
        qrcode_count_time: parseInt(res.data.qrcode_count_time),
        loading: false,
        info: res.data
      }, () => {
        wx.hideLoading()
        this.getTimes(this.data.qrcode_count_time).then(() => {
          this.getappSignConf()
        })
        this.setScreenBright()
      })
    })
  },

  /**
   * 设置亮度
   */
  setScreenBright() {
    wx.setScreenBrightness({
      value: 1
    })
  },

  /** 
   * 恢复亮度
   */
  resetScreenBright() {
    wx.setScreenBrightness({
      value: this.data.ori_screen_bright
    })
  },

  /** 
   * 生成倒计时
   */
  getTimes(seconds) {
    let that = this
    return new Promise(function (resolve, reject) {
      wxTimer = new timer({
        name: 'wxTimer',
        leftTime: seconds,
        complete: function () {
          setTimeout(() => {
            that.setData({
              // 'submitFlag': false,
              wxTimerList: {}
            })
            resolve()
          }, 1000);
        },
      })
      wxTimer.start(that);
    })
  },

  //推送链接
  pushLink(e) {
    if (e.currentTarget.dataset.url) {
      _.$router.openUrlScheme(e.currentTarget.dataset.url)
    }
  },

})