按周切换的时间选择器

深碍√TFBOYSˉ_ 2023-07-18 09:29 2阅读 0赞

今天遇到一个要按周切换的时间选择器,简单的做一下记录

onShow: function () {
          let curD = new Date();
          let firstD = new Date();
          let lastD = new Date();
          this.setData({
                curD: curD,
                firstD: firstD,
                lastD: lastD
          })
          this.getTime()
    },
    
    getTime() {  //获取当前周
          let curD = this.data.curD
          let firstD = this.data.firstD
          let lastD = this.data.lastD
          let intD = new Date();
          let dayTime = 24 * 60 * 60 * 1000;
          var dateLong = curD.getTime();
          if (curD.getDay() == 0) { //当前时间取代过去的时间
                dateLong = dateLong - (6 * dayTime);
          } else {
                dateLong = dateLong - (curD.getDay() - 1) * dayTime;
          }
          let d = curD.setTime(dateLong);
          let tt = Date.parse(firstD)
          firstD = curD;
          lastD.setTime(firstD.getTime() + 6 * dayTime);
          let st = firstD.getFullYear() + '-' + (firstD.getMonth() + 1) + '-' + firstD.getDate();
          if (tt > Date.parse(st)){
                st = intD.getFullYear() + '-' + (intD.getMonth() + 1) + '-' + intD.getDate();
          }
          let ss = st + ' 至 ' + lastD.getFullYear() + '-' + (lastD.getMonth() + 1) + '-' + lastD.getDate();
          
          this.setData({
                ss: ss
          })
    },
    
    backDate() {  //上一周
          let curD = this.data.curD
          let dayTime = 24 * 60 * 60 * 1000;
          var dateLong = curD.getTime();
          curD.setTime(dateLong - (6 * dayTime));
          this.setData({
                curD: curD
          })
         this. getTime();
    },
    nextDate() {  //下一周
          let curD = this.data.curD
          let dayTime = 24 * 60 * 60 * 1000;
          var dateLong = curD.getTime();
          curD.setTime(dateLong + (7 * dayTime));
          this.setData({
                curD: curD
          })
          this.getTime();
    },