通过 delay 选项设置延迟开始拖拽的毫秒数。通过 distance 选项设置光标被按下且拖拽指定像素后才允许拖拽。

只有把我拖拽了 20 像素后,拖拽才开始

不管 distance 是多少,您都必须拖拽并等待 1000ms 后拖拽才开始

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery UI 拖动(Draggable) - 延迟开始</title>
  <link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
  <script src="//code.jquery.com/jquery-1.9.1.js"></script>
  <script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
  <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css">
  <style>
  #draggable, #draggable2 { width: 120px; height: 120px; padding: 0.5em; float: left; margin: 0 10px 10px 0; }
  </style>
  <script>
  $(function() {
    $( "#draggable" ).draggable({ distance: 20 });
    $( "#draggable2" ).draggable({ delay: 1000 });
    $( ".ui-draggable" ).disableSelection();
  });
  </script>
</head>
<body>
 
<div id="draggable" class="ui-widget-content">
  <p>只有把我拖拽了 20 像素后,拖拽才开始</p>
</div>
 
<div id="draggable2" class="ui-widget-content">
  <p>不管 distance 是多少,您都必须拖拽并等待 1000ms 后拖拽才开始</p>
</div>
 
 
</body>
</html>