epdc-resident-mp-js/pages/start/start.js

const app = getApp()
import {
  getStartupPageV2
} from '../../api/index'

Page({
  data: {
    deviceHeight: 0,
    countdownNum: 0,
    bgImage: '',
    timer: '',
    scene: '',
    imgList: [],
    datanum: 0, //第几个数组
    datalength: 0, //数组长度
    allTime:0,//总时间
  },
  onLoad(options) {
    if (options.scene) {
      this.data.scene = options.scene
    }
    this.setData({
      deviceHeight: app.globalData.height
    })
    this.getStartupPage()
  },
  // 倒计时进入
  countDown() {
    this.data.timer = setInterval(() => {
      if (this.data.countdownNum > 1) {
        this.data.allTime--
        this.data.countdownNum--
          this.setData({
            countdownNum: this.data.countdownNum,
            allTime: this.data.allTime
          })
      } else {
        this.data.allTime--
        this.setData({
          datanum: this.data.datanum + 1,
          allTime: this.data.allTime
        })
        clearInterval(this.data.timer)
        if (this.data.datalength > this.data.datanum) {
          this.getloop()
        } else {
          if (this.data.scene) {
            wx.reLaunch({
              url: `/pages/indexNew/indexNew?scene=${this.data.scene}`
            })
          } else {
            wx.reLaunch({
              url: '/pages/indexNew/indexNew'
            })
          }
        }
      }
    }, 1000)
  },
  // 立即进入
  immeEnter() {
    clearInterval(this.data.timer)
    if (this.data.scene) {
      wx.reLaunch({
        url: `/pages/indexNew/indexNew?scene=${this.data.scene}`
      })
    } else {
      wx.reLaunch({
        url: '/pages/indexNew/indexNew'
      })
    }
  },
  // 获取启动页信息
  getStartupPage() {
    wx.showLoading({
      title: '获取中...'
    })
    getStartupPageV2().then(res => {
      wx.hideLoading()
      console.log('获取启动页信息', res)
      if (res.data.length > 0) {

        res.data.forEach((item, index) => {
          // this.data.allTime = this.data.allTime + item.duration
          this.setData({
            allTime: this.data.allTime + item.duration
          })
        })
        this.setData({
          datalength: res.data.length,
          imgList: res.data
        })
        this.getloop()
      } else {
        this.immeEnter()
      }
    }).catch(err => {
      wx.hideLoading()
      this.immeEnter()
    })
  },
  //数组循环
  getloop() {
    if (this.data.imgList[this.data.datanum].duration > 0) {
      this.setData({
        bgImage: this.data.imgList[this.data.datanum].imgUrl,
        countdownNum: this.data.imgList[this.data.datanum].duration
      })
      this.countDown()
    }
  }
})