Home Web Front-end JS Tutorial How to use Layui to implement responsive calendar functions

How to use Layui to implement responsive calendar functions

Oct 25, 2023 pm 12:06 PM
Responsive layui

How to use Layui to implement responsive calendar functions

How to use Layui to implement responsive calendar function

1. Introduction
In web development, calendar function is one of the common requirements. Layui is an excellent front-end framework that provides a wealth of UI components, including calendar components. This article will introduce how to use Layui to implement a responsive calendar function and give specific code examples.

2. HTML structure
In order to implement the calendar function, we first need to create a suitable HTML structure. You can use a div element as the outermost container, and then use a table element inside to display the calendar. The specific HTML structure is as follows:

<div class="calendar-container">
  <table class="layui-table" lay-size="sm">
    <colgroup>
      <col width="14.28%">
      <col width="14.28%">
      <col width="14.28%">
      <col width="14.28%">
      <col width="14.28%">
      <col width="14.28%">
      <col width="14.28%">
    </colgroup>
    <thead>
      <tr>
        <th>日</th>
        <th>一</th>
        <th>二</th>
        <th>三</th>
        <th>四</th>
        <th>五</th>
        <th>六</th>
      </tr>
    </thead>
    <tbody id="calendar-body"></tbody>
  </table>
</div>
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3. CSS style
In order to make the calendar have good display effects on different devices, we need to make some style adjustments to it. The specific CSS styles are as follows:

.calendar-container {
  width: 100%;
  overflow: hidden;
  margin: auto;
}

.layui-table {
  margin: 10px auto;
  border-color: #e6e6e6;
  font-size: 13px;
  text-align: center;
}

.layui-table td, 
.layui-table th {
  padding: 0;
  height: 40px;
  line-height: 40px;
  border: none;
}

.layui-table th {
  color: #666;
  font-weight: normal;
}

.layui-table td {
  cursor: pointer;
}

.layui-table td:hover {
  background-color: #f2f2f2;
}
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4. JS logic
After the HTML structure and CSS styles are ready, we need to write some JavaScript code to implement the core functions of the calendar. The specific JS code is as follows:

layui.use(['laydate', 'table'], function() {
  var laydate = layui.laydate;
  var table = layui.table;
  
  // 获取当前日期
  var currentDate = new Date();
  
  // 获取当前年份和月份
  var currentYear = currentDate.getFullYear();
  var currentMonth = currentDate.getMonth() + 1;
  
  // 渲染日历
  renderCalendar(currentYear, currentMonth);

  // 渲染日历函数
  function renderCalendar(year, month) {
    var firstDay = new Date(year, month - 1, 1); // 当月的第一天
    var firstDayOfWeek = firstDay.getDay(); // 当月的第一天是星期几
    var lastDayOfLastMonth = new Date(year, month - 1, 0); // 上个月的最后一天

    // 清空日历表格
    $('#calendar-body').empty();

    // 设置日历表格的行数和列数
    var rowCount = 6;
    var colCount = 7;

    // 构建日历表格
    for (var i = 0; i < rowCount; i++) {
      var tr = $('<tr></tr>');
      for (var j = 0; j < colCount; j++) {
        var td = $('<td></td>');
        var day = i * colCount + j - firstDayOfWeek + 1;
        var isCurrentMonth = true;
        
        // 当天日期
        var today = new Date();
        var todayYear = today.getFullYear();
        var todayMonth = today.getMonth() + 1;
        var todayDate = today.getDate();
        
        // 判断日期是否在当前月份
        if (year === todayYear && month === todayMonth && day === todayDate) {
          td.addClass('today');
        }
        
        // 判断日期是否在当前月份之后
        if (day <= 0) {
          day = lastDayOfLastMonth.getDate() + day;
          isCurrentMonth = false;
        } else if (day > lastDayOfLastMonth.getDate()) {
          day = day - lastDayOfLastMonth.getDate();
          isCurrentMonth = false;
        }
        
        // 渲染日期
        if (isCurrentMonth) {
          td.text(day);
        } else {
          td.text(day);
          td.css('color', '#ccc');
        }

        tr.append(td);
      }
      $('#calendar-body').append(tr);
    }
  }
});
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5. Effect display
Save the above code as an HTML file and open it through a browser to see a simple responsive calendar. You can switch months by clicking the buttons for the previous month and the next month, and the current date will be displayed in different styles.

6. Summary
This article introduces how to use Layui to implement a responsive calendar function, and gives specific code examples. Through this example, we can find that the calendar component provided by Layui is very flexible and can meet the needs of various scenarios. I hope this article will be helpful to students who are learning Layui and implementing calendar functions.

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