http://www.lanrentuku.com/gif/a/loading_4.html

官网介绍
图标加载
getClass : Function  

    A function which returns the CSS class to apply to the icon image.  

    Parameters  
        v : Object  
        The value of the column's configured field (if any).  

        metadata : Object  
        An object in which you may set the following attributes:  

            css : String  
            A CSS class name to add to the cell's TD element.  

            attr : String  
            An HTML attribute definition string to apply to the data container element within the table cell (e.g. 'style="color:red;"').  

        r : Ext.data.Model  
        The Record providing the data.  

        rowIndex : Number  
        The row index.  

        colIndex : Number  
        The column index.  

        store : Ext.data.Store  
        The Store which is providing the data Model.  


提示加载
getTip : Function

A function which returns the tooltip string for any row.
Parameters

    v : Object
    The value of the column's configured field (if any).

    metadata : Object
    An object in which you may set the following attributes:

        css : String
        A CSS class name to add to the cell's TD element.

        attr : String
        An HTML attribute definition string to apply to the data container element within the table cell (e.g. 'style="color:red;"').

    r : Ext.data.Model
    The Record providing the data.

    rowIndex : Number
    The row index.

    colIndex : Number
    The column index.

    store : Ext.data.Store
    The Store which is providing the data Model.



项目实战

text : "操作",
xtype:'actioncolumn',
sortable : false,
width : 190,
items : [{
	handler : "projectFavorite",
	name : 'projectFavorite',
	getClass : function (v, metadata, r, rowIndex, colIndex, store) {
		if (me.userType == '20') {
			if (r.data.partaked){ 
				return "x-item-disabled x-fa fa-heart";
			} else {
				return r.data.favorite == true ? "x-fa fa-heart" : "x-fa fa-heart-o";
			}
		}
	},
	getTip : function (v, metadata, r, rowIndex, colIndex, store) {
		if (me.userType == '20') {
			return r.data.favorite == true ? "取消关注" : "关注";
		}
	}
}]

   /*加载图标样式*/
   .loading-icon{
        display: flex;
        justify-content: center;
        padding:20px;
    }
    .loading-icon img{
        width:.6rem;
        height:.6rem;
        animation:turn .66s linear infinite
    }
     @keyframes turn{
      0%{-webkit-transform:rotate(0deg);}
      25%{-webkit-transform:rotate(90deg);}
      50%{-webkit-transform:rotate(180deg);}
      75%{-webkit-transform:rotate(270deg);}
      100%{-webkit-transform:rotate(360deg);}
    }
ss样式、

    <!-- 加载图标 -->
    <div class="loading-icon">
        <img src="/sprint_static/image/article/loading.png" alt="">
    </div>

    
http://ajaxload.info/
这是一个可以生成加载动态图标的网站。

转载于:https://www.cnblogs.com/wbxjiayou/p/5156587.html