layui扩展上传组件模拟进度条的方法

如下所示：

<div id=\"uploadPatchForm\" style=\"display:none\" class=\"roundRect\"> 
  <div id=\"uploadLoadingDiv\">
    <div class=\"layui-progress\" lay-showpercent=\"true\" lay-filter=\"demo\" >
	  <div class=\"layui-progress-bar layui-bg-red\" lay-percent=\"0%\"></div>
	</div>
  </div>
  <form class=\"layui-form\" enctype=\"multipart/form-data\">
	<div class=\"layui-form-item layui-upload\">
	  <span id=\"uploadName\" style=\"line-height: 3;\"></span>
	  <button type=\"button\" class=\"layui-btn layui-btn-normal\" id=\"test8\" style=\"float: right;\">
        <i class=\"layui-icon\"></i>
      </button>
	</div>
	<div class=\"layui-form-item\">
	  <div class=\"layui-input-block\">
	    <input type=\"radio\" name=\"upgradeType\" value=\"30011001\" title=\"手动升级\">
	    <input type=\"radio\" name=\"upgradeType\" value=\"30011002\" title=\"自动升级\" checked>
	  </div>
	</div>
	<div class=\"layui-form-item\">
	  <div class=\"layui-input-block\">
		<a class=\"roundCornerDiv aLineGray\" href=\"javascript:layer.closeAll();\" rel=\"external nofollow\" >
		  <span type=\"reset\" class=\"ButtonText popupCloseBtn\">取消</span>
		</a>
		<a class=\"roundCornerDiv aLineOrange\">
	      <button class=\"ButtonText submitBtn\" type=\"button\" id=\"test9\">立即提交</button>
	    </a> 
	  </div>
	</div>
  </form>
</div>

layui.use([\'upload\',\'element\',\'layer\'], function(){
	var upload = layui.upload,element = layui.element,layer = layui.layer;
	var timer;//定义一个计时器
	//选完文件后不自动上传
	upload.render({
	  elem: \'#test8\'
	  ,url: \'upload\'
	  ,async: false
	  ,method: \'post\'
	  ,data: {
	    upgradeType: function(){
		  return $(\"input[name=\'upgradeType\']:checked\").val();//额外传递的参数
	    }
	  }
	  ,auto: false
	  ,accept: \'file\' //普通文件
	  ,exts: \'zip\' //只允许上传压缩文件
	  ,field:\'uploadFile\'
	  ,bindAction: \'#test9\'
	  ,choose: function(obj){//这里的作用是截取上传文件名称并显示
		var uploadFileInput=$(\".layui-upload-file\").val();
		var uploadFileName=uploadFileInput.split(\"\\\\\");
		$(\"#uploadName\").text(uploadFileName[uploadFileName.length-1]);
	  }
	  ,before: function(obj){ //obj参数包含的信息，跟choose回调完全一致
		layer.load(); //上传loading
		var n = 0; 
		timer = setInterval(function(){//按照时间随机生成一个小于95的进度，具体数值可以自己调整
		  n = n + Math.random()*10|0; 
		  if(n>95){
			n = 95;
			clearInterval(timer);
		  }
		  element.progress(\'demo\', n+\'%\');
		}, 50+Math.random()*100);
	  }
	  ,done: function(res){
		clearInterval(timer);
		element.progress(\'demo\', \'100%\');//一成功就把进度条置为100%
		layer.closeAll(); layer.msg(\'上传成功\');}  ,error: function(index, upload){element.progress(\'demo\', \'0%\');layer.closeAll(); //关闭所有层layer.msg(\'上传更新包失败\');  }});});

哎，好难调格式！

效果如下，截图工具反应迟钝看起来有点失真，实际测试是ok的：

以上这篇 layui扩展上传组件模拟进度条的方法就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持。