小程序----横向滑动日历

 
    
      
        {{ item.week }}
        {{ item.date }}
      
    
  

 

function getThisMonthDays(year, month) {
      return new Date(year, month, 0).getDate();
    }
    // 计算每月第一天是星期几
    function getFirstDayOfWeek(year, month) {
      return new Date(Date.UTC(year, month - 1, 1)).getDay();
    }
    const date = new Date();
    const cur_year = date.getFullYear();
    const cur_month = date.getMonth() + 1;
    const cur_date = date.getDate();
    const weeks_ch = ['日', '一', '二', '三', '四', '五', '六'];
    //利用构造函数创建对象
    function calendar(date, week) {
      this.date = cur_year + '-' + cur_month + '-' + date;
      if (date == cur_date) {
        this.week = "今天";
      } else if (date == cur_date + 1) {
        this.week = "明天";
      } else {
        this.week = '星期' + week;
      }
    }
    //当前月份的天数
    var monthLength = getThisMonthDays(cur_year, cur_month)
    //当前月份的第一天是星期几
    var week = getFirstDayOfWeek(cur_year, cur_month)
    var x = week;
    for (var i = 1; i <= monthLength; i++) {
      //当循环完一周后，初始化再次循环
      if (x > 6) {
        x = 0;
      }
      //利用构造函数创建对象
      that.data.calendar[i] = new calendar(i, [weeks_ch[x]][0])
      x++;
    }
    //限制要渲染的日历数据天数为7天以内（用户体验）
    var flag = that.data.calendar.splice(cur_date, that.data.calendar.length - cur_date <= 7 ? that.data.calendar.length : 7)
    that.setData({
      calendar: flag
    })
    selectd = flag;
    // console.log(selectd);
    var ret_id = [];
    const lengths = selectd.length
    for (let i = 0; i < lengths; i++) {
      ret_id[i] = selectd[i].date;
    }
    choosedate = ret_id[0];
    //设置scroll-view的子容器的宽度
    that.setData({
      width: 186 * parseInt(that.data.calendar.length - cur_date <= 7 ? that.data.calendar.length : 7)
    })

/*日历开始  */


scroll-view{
  height: 128rpx;
  width: 101%;
  position:fixed;
  top:355rpx;

}
scroll-view .list{
  display: flex;
  flex-wrap: nowrap;
  justify-content: flex-start;
}
scroll-view .listItem{
  text-align: center;
  width:187rpx;
  height: 128rpx;
  background: #f4f4f4;
  padding-top: 30rpx;
  box-sizing: border-box;
  display: inline-block;
}
scroll-view .listItem text{
  display: block;
}
scroll-view .listItem .name{
  font-size: 25rpx;
}
scroll-view .listItem .date{
  font-size: 25rpx;
}
scroll-view .current{
    background-color:pink;
     width:200rpx;
    position:relative;
}
scroll-view .current text{
  color: #fff;
}