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H5移动端网页上拉及下拉刷新数据_h5 上拉加载五条数据

作者：凡人多烦事01 | 2024-02-16 22:45:19

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h5 上拉加载五条数据

H5移动端网页上拉及下拉刷新数据

上拉刷新demo 

  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. 	<meta charset="UTF-8">
  5. 	<meta name="viewport" content="width=device-width, initial-scale=1">
  6. 	<title>Document</title>
  7. 	<style type="text/css">
  8. 		html,body,header,div,main,p,span,ul,li{ margin: 0; padding: 0; }
  9. 		#refreshContainer li{ background-color: #eee; margin-bottom: 1px; padding: 20px 10px; }
  10. 		.refreshText{ position: absolute; width: 100%; line-height: 50px; text-align: center; left: 0; top: 0; }
  11. 	</style>
  12. </head>
  13. <body>
  14. <main>
  15. 	<p class="refreshText"></p>
  16. 	<ul id="refreshContainer">
  17. 		<li>111</li>
  18. 		<li>222</li>
  19. 		<li>333</li>
  20. 		<li>444</li>
  21. 		<li>555</li>
  22. 		<li>111</li>
  23. 		<li>222</li>
  24. 		<li>333</li>
  25. 		<li>444</li>
  26. 		<li>555</li>
  27. 		<li>111</li>
  28. 		<li>222</li>
  29. 		<li>333</li>
  30. 		<li>444</li>
  31. 		<li>555</li>
  32. 	</ul>
  33. </main>
  34.  
  35. <script type="text/javascript">
  36. 	(function(window) {
  37. 		var _element = document.getElementById('refreshContainer'),
  38. 		  _refreshText = document.querySelector('.refreshText'),
  39. 		  _startPos = 0,
  40. 		  _transitionHeight = 0;
  41.  
  42. 		_element.addEventListener('touchstart', function(e) {
  43. 			console.log('初始位置：', e.touches[0].pageY);
  44. 			_startPos = e.touches[0].pageY;
  45. 			_element.style.position = 'relative';
  46. 			_element.style.transition = 'transform 0s';
  47. 		}, false);
  48. 		
  49. 		_element.addEventListener('touchmove', function(e) {
  50. 			console.log('当前位置：', e.touches[0].pageY);
  51. 			_transitionHeight = e.touches[0].pageY - _startPos;
  52. 			
  53. 			if (_transitionHeight > 0 && _transitionHeight < 60) {
  54. 				_refreshText.innerText = '下拉刷新';
  55. 				_element.style.transform = 'translateY('+_transitionHeight+'px)';
  56.  
  57. 				if (_transitionHeight > 55) {
  58. 				  _refreshText.innerText = '释放更新';
  59. 				  _element.append("<li>100</li>");
  60. 				}
  61. 			}				
  62. 		}, false);
  63.  
  64. 		_element.addEventListener('touchend', function(e) {
  65. 			_element.style.transition = 'transform 0.5s ease 1s';
  66. 			_element.style.transform = 'translateY(0px)';
  67. 			_refreshText.innerText = '更新中...';
  68.  
  69. 			// todo...
  70.  
  71. 		}, false);
  72. 	})(window);
  73. </script>
  74. </body>
  75. </html>

 

下拉加载更多demo

  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. 	<meta charset="UTF-8">
  5. 	<meta name="viewport" content="width=device-width, initial-scale=1">
  6. 	<title>Document</title>
  7. 	<style type="text/css">
  8. 		html,body,header,div,main,p,span,ul,li{ margin: 0; padding: 0; }
  9. 		#refreshContainer li{ background-color: #eee; margin-bottom: 1px; padding: 20px 10px; }
  10. 		.refreshText{ line-height: 50px; text-align: center; }
  11. 	</style>
  12. </head>
  13. <body>
  14. <main>
  15. 	<ul id="refreshContainer">
  16. 		<li>111</li>
  17. 		<li>222</li>
  18. 		<li>333</li>
  19. 		<li>444</li>
  20. 		<li>555</li>
  21. 		<li>111</li>
  22. 		<li>222</li>
  23. 		<li>333</li>
  24. 		<li>444</li>
  25. 		<li>555</li>
  26. 		<li>111</li>
  27. 		<li>222</li>
  28. 		<li>333</li>
  29. 		<li>444</li>
  30. 		<li>555</li>
  31. 	</ul>
  32. 	<p class="refreshText"></p>
  33. </main>
  34.  
  35. <script type="text/javascript">
  36. (function(window) {
  37. 	// 获取当前滚动条的位置 
  38.     function getScrollTop() { 
  39. 	    var scrollTop = 0; 
  40. 	    if (document.documentElement && document.documentElement.scrollTop) { 
  41. 	    	scrollTop = document.documentElement.scrollTop; 
  42. 	    } else if (document.body) { 
  43. 	    	scrollTop = document.body.scrollTop; 
  44. 	    } 
  45. 	    return scrollTop; 
  46.     } 
  47.  
  48.     // 获取当前可视范围的高度 
  49.     function getClientHeight() { 
  50. 	    var clientHeight = 0; 
  51. 	    if (document.body.clientHeight && document.documentElement.clientHeight) { 
  52. 	    	clientHeight = Math.min(document.body.clientHeight, document.documentElement.clientHeight); 
  53. 	    } 
  54. 	    else { 
  55. 	    	clientHeight = Math.max(document.body.clientHeight, document.documentElement.clientHeight); 
  56. 	    } 
  57. 	    return clientHeight; 
  58.     }
  59.  
  60.     // 获取文档完整的高度 
  61.     function getScrollHeight() { 
  62.     	return Math.max(document.body.scrollHeight, document.documentElement.scrollHeight); 
  63.     }
  64.  
  65.     var _text = document.querySelector('.refreshText'),
  66.     _container = document.getElementById('refreshContainer');
  67.  
  68.     var throttle = function(method, context){
  69. 		  clearTimeout(method.tId);
  70. 		  method.tId = setTimeout(function(){
  71. 		    method.call(context);
  72. 		  }, 300);
  73. 	}
  74.  
  75.     function fetchData() {
  76.     	setTimeout(function() {
  77.     		_container.insertAdjacentHTML('beforeend', '<li>new add...</li>');
  78.     	}, 1000);
  79.     }
  80.  
  81.     window.onscroll = function() {
  82.       	if (getScrollTop() + getClientHeight() == getScrollHeight()) {
  83.       		_text.innerText = '加载中...';
  84.       		throttle(fetchData);
  85.       	}
  86.     };
  87.  
  88. })(window);
  89. </script>
  90. </body>
  91. </html>
  92.

 

由于上面的demo针对是单页面且针对整个页面区，所以很多时候不大适合，下面这个例子是针对 div区域做的下拉刷新

滚动区域为div 的下拉刷新 demo

注：该demo相关的几个文件未给出，但关键代码已贴

  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4.     <meta charset="UTF-8">
  5.     <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
  6.     <title>下拉刷新-移动端</title>
  7.  
  8.     <script src="jscript/jquery-1.11.0.min.js" type="text/javascript"></script>
  9.     <script src="jscript/util.js" type="text/javascript"></script>
  10.     <script src="jscript/publish.js" type="text/javascript"></script>
  11.  
  12.     <link rel="stylesheet" href="css/mbase.css">
  13.     <link rel="shortcut icon" href="favicon.ico" type="image/x-icon">
  14.     <style>
  15.         .refreshText {
  16.             line-height: 50px;
  17.             text-align: center;
  18.         }
  19.     </style>
  20. </head>
  21. <body>
  22.     <div class="header">
  23.         <div style="width:10%;float:left; text-align:center; vertical-align:central;"><img src="mimages/nconlogo.png" style="width:75px;height:75px;"></div>
  24.         <div style="width:75%;float:right; margin-left:10px;">
  25.             <div class="nav">
  26.                 <a href="#" onclick="sel(this,2);">平面口罩</a>
  27.             </div>
  28.         </div>
  29.  
  30.     </div>
  31.     <div class="content"  id="div2">
  32.         <p style="text-align:center;font-size:18px;margin-bottom:5px;margin-top:5px;">平面口罩</p>
  33.         <div id="wraper1" style="overflow-y:auto; height:75vh;">
  34.                 <div style="margin-left:5px; " id="infoData2">
  35.                     暂无信息
  36.                 </div>
  37.                 <p class="refreshText" id="refreshText1"></p>
  38.         </div>
  39.     </div>
  40.     <div class="footer">
  41.         <p>下拉刷新测试</p>
  42.     </div>
  43.  
  44.     <script type="text/javascript">
  45.  
  46.         var content = document.getElementById('wraper1');    //滑动容器
  47.         var _text = document.getElementById('refreshText1');
  48.  
  49.         (function (window) {
  50.             $("#btnOk").click(function () {
  51.                 publish();
  52.             });
  53.             
  54.             // 获取当前滚动条的位置
  55.             function getScrollTop() {
  56.                 var scrollTop = 0;
  57.                 if (document.documentElement && content.scrollTop) {
  58.                     scrollTop = content.scrollTop;
  59.                 } else if (document.body) {
  60.                     scrollTop = document.body.scrollTop;
  61.                 }
  62.                 return scrollTop;
  63.             }
  64.  
  65.             // 获取当前可视范围的高度
  66.             function getClientHeight() {
  67.                 var clientHeight = 0;
  68.                 if (document.body.clientHeight && content.clientHeight) {
  69.                     clientHeight = Math.min(document.body.clientHeight, content.clientHeight);
  70.                 }
  71.                 else {
  72.                     clientHeight = Math.max(document.body.clientHeight, content.clientHeight);
  73.                 }
  74.                 return clientHeight;
  75.             }
  76.  
  77.             // 获取文档完整的高度
  78.             function getScrollHeight() {
  79.                 return Math.max(document.body.scrollHeight, content.scrollHeight);
  80.             }
  81.  
  82.             var throttle = function (method, context) {
  83.                 clearTimeout(method.tId);
  84.                 method.tId = setTimeout(function () {
  85.                     method.call(context);
  86.                 }, 500);
  87.             }
  88.  
  89.             function fetchData() {
  90.                 setTimeout(function () {
  91.                     //_container.insertAdjacentHTML('beforeend', '<li>new add...</li>');
  92.                     pageIndex++;
  93.                     getconinfoData(pageIndex, SmallpageSize);
  94.                     //alert("loading " + pageIndex+" 页 typeid="+CurrentTypeId);
  95.                 }, 1000);
  96.             }
  97.             
  98.             
  99.  
  100.             // 触摸开始
  101.             function boxTouchStart(e) {
  102.                 var touch = e.touches[0];
  103.                 startY = touch.pageY;
  104.             }
  105.  
  106.             // 触摸移动
  107.             function boxTouchMove(e) {
  108.                 var touch = e.touches[0];
  109.                 moveY = touch.pageY - startY;
  110.                 index = Number(e.target.id.split('page')[1])
  111.  
  112.                 var htop = getScrollTop();
  113.                 var hch = getClientHeight();
  114.                 var sch = getScrollHeight();
  115.                 if (htop + hch >= sch) {
  116.                     _text.innerText = '加载中...';
  117.                     throttle(fetchData);
  118.                 }
  119.             }
  120.  
  121.             content.addEventListener('touchstart', boxTouchStart, false)
  122.             content.addEventListener('touchmove', boxTouchMove, false)
  123.  
  124.         })(window);
  125.     </script>
  126.     <script>
  127.  
  128.         function sel(fromobj, val) {
  129.             //alert(val);
  130.             CurrentTypeId = 2;
  131.             $(".nav a").removeClass("active");
  132.             $(fromobj).addClass("active");
  133.             getconinfoData(pageIndex, SmallpageSize);
  134.         }
  135.     </script>
  136. </body>
  137. </html>
  138.  
  139. getconinfoData为加载数据的js
  140.  
  141. function getconinfoData(idx, size) {
  142.     var val = CurrentTypeId;
  143.     var typeId = parseInt(val) * 100;
  144.    
  145.     if (idx == 1) {
  146.         //先清空
  147.         $($("#infoData" + val)).html("");
  148.     }
  149.  
  150.     var data = {};
  151.     data.call = ReqDefaultInfo;
  152.     var url = ReqDefaultDomain + "cov/list?typeId=" + typeId + "&pageIndex=" + idx + "&pageSize=" + size
  153.     ajaxProcessForApi(url, data.call, function callSuccess(oRet) {
  154.         var result = oRet.Data;
  155.         var html = "";
  156.         var tr = "<div class='listdata'><ul><li>产品名称：{PName}</li><li>注册证号：{RegisterNo}</li><li class='publisher'>注册人：{RegisterName}</li></ul></div>";
  157.         
  158.         $(result.Rows).each(function () {
  159.             html += tr.format(this);
  160.         });
  161.         if (html.length < 10) {
  162.             html = "暂无信息";
  163.             $($("#refreshText" + val)).innerText = "已经到底了...";
  164.         }
  165.         $($("#infoData" + val)).append(html);
  166.  
  167.     }, function callError(e) {
  168.         //alert(e);
  169.     });
  170. }

页面绑定事件时加入了节流函数，其作用就是忽略滚动条300毫秒内的连续多次触发。

小结
上拉刷新的实现主要依靠的是touch事件的三个阶段，以及借助CSS3动画效果；下拉加载主要依靠页面的boxTouchMove事件，需要注意的是页面滚动时可能要考虑函数节流。

 

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