Android 折叠布局 神奇的侧滑效果

http://blog.csdn.net/lmj623565791/article/details/44278417 代码为博客实例，有问题博客留言。

/** Automatically generated file. DO NOT MODIFY */
package com.zhy.sample.folderlayout;

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

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2015-03-16 11:22  Sample_FoldingLayout\
     文件         466  2015-03-12 13:17  Sample_FoldingLayout\.classpath
     文件        6148  2015-03-16 11:22  Sample_FoldingLayout\.DS_Store
     目录           0  2015-03-16 11:22  __MACOSX\
     目录           0  2015-03-16 11:22  __MACOSX\Sample_FoldingLayout\
     文件         120  2015-03-16 11:22  __MACOSX\Sample_FoldingLayout\._.DS_Store
     文件         823  2015-03-12 13:17  Sample_FoldingLayout\.project
     目录           0  2015-03-12 13:17  Sample_FoldingLayout\.settings\
     文件         173  2015-03-12 13:17  Sample_FoldingLayout\.settings\org.eclipse.jdt.core.prefs
     文件        1343  2015-03-15 16:44  Sample_FoldingLayout\AndroidManifest.xml
     目录           0  2015-03-12 13:17  Sample_FoldingLayout\assets\
     目录           0  2015-03-16 11:21  Sample_FoldingLayout\bin\
     文件        1343  2015-03-15 16:44  Sample_FoldingLayout\bin\AndroidManifest.xml
     目录           0  2015-03-12 14:40  Sample_FoldingLayout\bin\classes\
     目录           0  2015-03-12 14:40  Sample_FoldingLayout\bin\classes\com\
     目录           0  2015-03-13 23:03  Sample_FoldingLayout\bin\classes\com\zhy\
     目录           0  2015-03-12 14:40  Sample_FoldingLayout\bin\classes\com\zhy\sample\
     目录           0  2015-03-15 17:07  Sample_FoldingLayout\bin\classes\com\zhy\sample\folderlayout\
     文件         363  2015-03-12 14:40  Sample_FoldingLayout\bin\classes\com\zhy\sample\folderlayout\BuildConfig.class
     文件         596  2015-03-16 11:21  Sample_FoldingLayout\bin\classes\com\zhy\sample\folderlayout\DrawerLayoutSampleActivity.class
     文件         714  2015-03-16 11:21  Sample_FoldingLayout\bin\classes\com\zhy\sample\folderlayout\FoldLayoutActivity.class
     文件        1450  2015-03-16 11:20  Sample_FoldingLayout\bin\classes\com\zhy\sample\folderlayout\LeftMenuFragment.class
     文件        2115  2015-03-16 11:21  Sample_FoldingLayout\bin\classes\com\zhy\sample\folderlayout\MainActivity.class
     文件        1813  2015-03-16 11:21  Sample_FoldingLayout\bin\classes\com\zhy\sample\folderlayout\MatrixPolyToPolyActivity$PolyToPolyView.class
     文件         807  2015-03-16 11:21  Sample_FoldingLayout\bin\classes\com\zhy\sample\folderlayout\MatrixPolyToPolyActivity.class
     文件        2973  2015-03-16 11:21  Sample_FoldingLayout\bin\classes\com\zhy\sample\folderlayout\MatrixPolyToPolyWithShadowActivity$PolyToPolyView.class
     文件         857  2015-03-16 11:21  Sample_FoldingLayout\bin\classes\com\zhy\sample\folderlayout\MatrixPolyToPolyWithShadowActivity.class
     文件         367  2015-03-16 11:20  Sample_FoldingLayout\bin\classes\com\zhy\sample\folderlayout\R$attr.class
     文件         488  2015-03-16 11:20  Sample_FoldingLayout\bin\classes\com\zhy\sample\folderlayout\R$dimen.class
     文件         495  2015-03-16 11:20  Sample_FoldingLayout\bin\classes\com\zhy\sample\folderlayout\R$drawable.class
     文件         572  2015-03-16 11:20  Sample_FoldingLayout\bin\classes\com\zhy\sample\folderlayout\R$id.class
............此处省略110个文件信息