ListView扩展，Expandlistview嵌套GridView

这是一款有好多种二级菜单的项目。有类似美团上的美食购物分类，有类似QQ分组的，有listview里面嵌套gridview的。几乎项目中个能用到的二级菜单这里都有，而且界面还是比较简洁的，很实用，又得直接可以在项目中应用。项目代码量也不是很多，而且都有详细的分层。项目中重要的部分也都有详细的注释。（本项目采用UTF-8编码）。

/** Automatically generated file. DO NOT MODIFY */
package com.example.demo;

public final class BuildConfig {
    public final static boolean DEBUG = true;
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件        475  2015-07-22 14:04  ClassifyDemo\.classpath

     文件         24  2015-05-23 08:48  ClassifyDemo\.gitignore

     文件        848  2015-06-06 17:28  ClassifyDemo\.project

     文件         57  2015-07-22 14:07  ClassifyDemo\.settings\org.eclipse.core.resources.prefs

     文件        177  2015-07-22 14:04  ClassifyDemo\.settings\org.eclipse.jdt.core.prefs

     文件       1251  2015-06-22 16:42  ClassifyDemo\AndroidManifest.xml

     文件        158  2015-07-22 14:04  ClassifyDemo\gen\com\example\demo\BuildConfig.java

     文件       6056  2015-07-22 14:07  ClassifyDemo\gen\com\example\demo\R.java

     文件      51394  2015-06-06 12:42  ClassifyDemo\ic_launcher-web.png

     文件     995624  2015-06-06 12:42  ClassifyDemo\libs\android-support-v4.jar

     文件        793  2015-06-22 17:03  ClassifyDemo\lint.xml

     文件        781  2015-06-06 12:41  ClassifyDemo\proguard-project.txt

     文件        563  2015-07-22 14:04  ClassifyDemo\project.properties

     文件         36  2015-06-14 20:03  ClassifyDemo\README.md

     文件        335  2015-07-04 11:45  ClassifyDemo\res\drawable\text_item_bg.xml

     文件        335  2015-06-22 15:13  ClassifyDemo\res\drawable\text_item_top_bg.xml

     文件        501  2015-06-22 11:44  ClassifyDemo\res\drawable-hdpi\group_down.png

     文件        475  2015-06-22 11:44  ClassifyDemo\res\drawable-hdpi\group_up.png

     文件       1546  2015-06-22 11:41  ClassifyDemo\res\drawable-hdpi\icon_back.png

     文件       1508  2014-04-14 00:13  ClassifyDemo\res\drawable-hdpi\ic_category_10.png

     文件       1548  2014-04-14 00:13  ClassifyDemo\res\drawable-hdpi\ic_category_20.png

     文件       1378  2014-04-14 00:13  ClassifyDemo\res\drawable-hdpi\ic_category_30.png

     文件        785  2014-04-14 00:13  ClassifyDemo\res\drawable-hdpi\ic_category_40.png

     文件        837  2014-04-14 00:13  ClassifyDemo\res\drawable-hdpi\ic_category_45.png

     文件       1015  2014-04-14 00:13  ClassifyDemo\res\drawable-hdpi\ic_category_50.png

     文件       1196  2014-04-14 00:13  ClassifyDemo\res\drawable-hdpi\ic_category_55.png

     文件       1370  2014-04-14 00:13  ClassifyDemo\res\drawable-hdpi\ic_category_60.png

     文件       1195  2014-04-14 00:13  ClassifyDemo\res\drawable-hdpi\ic_category_65.png

     文件       1512  2014-04-14 00:13  ClassifyDemo\res\drawable-hdpi\ic_category_70.png

     文件       1180  2014-04-14 00:13  ClassifyDemo\res\drawable-hdpi\ic_category_80.png

............此处省略91个文件信息