android 开源项目：

https://github.com/white-cat/ThinkAndroid

转自：http://glblong.blog.51cto.com/3058613/1354953 Android开源：数据库ORM框架GreenDao学习心得及使用总结 2014-01-26 23:40:01 标签： sqllite  Android  开源  数据库  ORM 版权声明：原创作品，如需转载，请与作者联系。否则将追究法律责任。

   最近在对开发项目的性能进行优化。由于项目里涉及了大量的缓存处理和数据库运用，需要对数据库进行频繁的读写、查询等操作。因此首先想到了对整个项目的数据库框架进行优化。

   原先使用android本身内置的sqllite，也就是用的最基本的SQLiteOpenHelper方法，这种方法对自己来说比较方便易懂。但是在使用过程中感觉很繁琐，从建表到对表的增删改查等操作，如果表对象的属性很多，就需要使用大量的代码来执行建表、插入等。在代码执行中还需要对数据库和游标的进行及时关闭(开启使用，用完关闭)，而且还需要部分sql语言，这在开发中产生bug进行调试时尤其不方便。

     目前android经常用的orm框架主要有greenDAO、OrmLite、AndrORM。 综合了网上的各种评价，greenDAO的运行效率最高，内存消耗最少，性能最佳。因此决定采用greenDAO框架，对项目的orm框架进行改进。

greenDAO与ORMLite性能对比

经过两天的修改，终于将项目里的数据库相关的都优化完了。在这过程中，发现greenDAO的性能确实不错，而且使用相当方便，不再需要涉及到任何的sql语言，可以直接通过对象类进行建表、增删改查等，尤其是api接口又方便易懂。在摸索学习中发现国内相关学习资料实在实在是太少，遂决定在此记录下自己对使用这个orm框架的一些心得和方法总结。

一、greenDAO相关

1.greenDAO官网：http://greendao-orm.com/

2.项目下载地址：https://github.com/greenrobot/greenDAO（或者官网）

greenDAO是一个可以帮助Android开发者快速将Java对象映射到SQLite数据库的表单中的ORM解决方案，通过使用一个简单的面向对象API，开发者可以对Java对象进行存储、更新、删除和查询。

greenDAO的主要设计目标：

   *最大性能（最快的Android ORM）

   *易于使用API

   *高度优化

   *最小内存消耗

二、使用步骤

官方Demo里共有六个工程目录，分别为：

(1).DaoCore：库目录，即jar文件greendao-1.3.0-beta-1.jar的代码；

(2).DaoExample：android范例工程；

(3).DaoExampleGenerator：DaoExample工程的DAO类构造器，java工程；

(4).DaoGenerator：DAO类构造器，java工程；

(5).DaoTest、PerformanceTestOrmLite：其他测试相关的工程。

（一）DAO类构造

首先需要新建一个java工程来生成DAO类文件，该工程需要导入greendao-generator.jar和freemarker.jar文件到项目中。

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package  de.greenrobot.daogenerator.gentest; import  de.greenrobot.daogenerator.DaoGenerator; import  de.greenrobot.daogenerator.Entity; import  de.greenrobot.daogenerator.Property; import  de.greenrobot.daogenerator.Schema; import  de.greenrobot.daogenerator.ToMany; /**   * Generates entities and DAOs for the example project DaoExample.   *   * Run it as a Java application (not Android).   *   * @author Markus   */ public  class  ExampleDaoGenerator {                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          public  static  void  main(String[] args)  throws  Exception      {          Schema schema =  new  Schema( 3 ,  "de.greenrobot.daoexample" );                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  addNote(schema);          addCustomerOrder(schema);                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  new  DaoGenerator().generateAll(schema,  "../DaoExample/src-gen" );      }                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          private  static  void  addNote(Schema schema)      {          Entity note = schema.addEntity( "Note" );          note.addIdProperty();          note.addStringProperty( "text" ).notNull();          note.addStringProperty( "comment" );          note.addDateProperty( "date" );      }                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          private  static  void  addCustomerOrder(Schema schema)      {          Entity customer = schema.addEntity( "Customer" );          customer.addIdProperty();          customer.addStringProperty( "name" ).notNull();                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  Entity order = schema.addEntity( "Order" );          order.setTableName( "ORDERS" );  // "ORDER" is a reserved keyword          order.addIdProperty();          Property orderDate = order.addDateProperty( "date" ).getProperty();          Property customerId = order.addLongProperty( "customerId" ).notNull().getProperty();          order.addToOne(customer, customerId);                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  ToMany customerToOrders = customer.addToMany(order, customerId);          customerToOrders.setName( "orders" );          customerToOrders.orderAsc(orderDate);      }                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     }

在main方法中，

1	Schema schema =  new  Schema( 3 ,  "de.greenrobot.daoexample" );

该方法第一个参数用来更新数据库版本号，第二个参数为要生成的DAO类所在包路径。

然后进行建表和设置要生成DAO文件的目标工程的项目路径。

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addNote(schema); addCustomerOrder(schema); new  DaoGenerator().generateAll(schema,  "../DaoExample/src-gen" );

其中src-gen这个目录名需要在运行前手动创建，否则会报错。

如果运行后出现以下错误，则导入DaoGenerator项目的dao.ftl文件即可(或者直接使用DaoGenerator来生成DAO文件)。

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Exception in thread  "main"  java.io.FileNotFoundException: Template  "dao.ftl"  not found.      at freemarker.template.Configuration.getTemplate(Configuration.java: 742 )      at freemarker.template.Configuration.getTemplate(Configuration.java: 665 )      at de.greenrobot.daogenerator.DaoGenerator.(DaoGenerator.java: 68 )      at de.greenrobot.daogenerator.gentest.ExampleDaoGenerator.main(ExampleDaoGenerator.java: 41 )

运行后出现以下的提示说明DAO文件自动生成成功了，刷新一下DaoExample项目即可看到。

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greenDAO Generator Copyright  2011 - 2013  Markus Junginger, greenrobot.de. Licensed under GPL V3. This program comes with ABSOLUTELY NO WARRANTY Processing schema version  3 ... Written F:\Android_Ex\work_10\DaoExample\src-gen\de\greenrobot\daoexample\NoteDao.java Written F:\Android_Ex\work_10\DaoExample\src-gen\de\greenrobot\daoexample\Note.java Written F:\Android_Ex\work_10\DaoExample\src-gen\de\greenrobot\daoexample\CustomerDao.java Written F:\Android_Ex\work_10\DaoExample\src-gen\de\greenrobot\daoexample\Customer.java Written F:\Android_Ex\work_10\DaoExample\src-gen\de\greenrobot\daoexample\OrderDao.java Written F:\Android_Ex\work_10\DaoExample\src-gen\de\greenrobot\daoexample\Order.java Written F:\Android_Ex\work_10\DaoExample\src-gen\de\greenrobot\daoexample\DaoMaster.java Written F:\Android_Ex\work_10\DaoExample\src-gen\de\greenrobot\daoexample\DaoSession.java Processed  3  entities in 204ms

运行后可以看到，DaoExample项目src-gen下面自动生成了8个文件，3个实体对象，3个dao，1个DaoMaster,1个DaoSession.

(二)创建表

1.创建一个实体类

1	Entity note = schema.addEntity( "Note" );

默认表名就是类名，也可以自定义表名

1	dao.setTableName( "NoteList" );

greenDAO会自动根据实体类属性创建表字段，并赋予默认值。例如在数据库方面的表名和列名都来源于实体类名和属性名。默认的数据库名称是大写使用下划线分隔单词，而不是在Java中使用的驼峰式大小写风格。例如，一个名为“CREATIONDATE”属性将成为一个数据库列“CREATION_DATE”。

设置一个自增长ID列为主键：

1	dao.addIdProperty().primaryKey().autoincrement();

设置其他各种类型的属性：

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dao.addIntProperty( "cityId" ); dao.addStringProperty( "infoType" ).notNull(); //非null字段 dao.addDoubleProperty( "Id" );

在生成的实体类中,int类型为自动转为long类型。

如果在编译过程中出现以下错误，那么有可能是主键的类型错误所致：

1	java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String

      在使用greenDAO时，一个实体类只能对应一个表，目前没法做到一个表对应多个实体类，或者多个表共用一种对象类型。后续的升级也不会针对这一点进行扩展。

(二)表的增删改查

     增删改查相当方便，完全的面向对象，不需要涉及到任何的sql语言。

1.查询

范例1：查询某个表是否包含某个id:

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public  boolean  isSaved( int  ID) {      QueryBuilder qb = saveListDao.queryBuilder();      qb.where(Properties.Id.eq(ID));      qb.buildCount().count();      return  qb.buildCount().count() >  0  ?  true  :  false ; }

范例2：获取整个表的数据集合,一句代码就搞定！

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public  List getPhotoGallery() {      return  photoGalleryDao.loadAll(); // 获取图片相册 }

范例3：通过一个字段值查找对应的另一个字段值(为简便直接使用下面方法，也许有更简单的方法，尚未尝试)

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/** 通过图片id查找其目录id */ public  int  getTypeId( int  picId) {      QueryBuilder qb = photoGalleryDao.queryBuilder();      qb.where(Properties.Id.eq(picId));      if  (qb.list().size() >  0 )      {          return  qb.list().get( 0 ).getTypeId();      }      else      {          return  - 1 ;      } }

范例4：查找所有第一姓名是“Joe”并且以lastname排序。

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List joes = userDao.queryBuilder() .where(Properties.FirstName.eq( "Joe" )) .orderAsc(Properties.LastName) .list();

范例5：多重条件查询

(1)获取id为cityId并且infotype为HBContant.CITYINFO_SL的数据集合：

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public  List getSupportingList( int  cityId) {      QueryBuilder qb = cityInfoDao.queryBuilder();      qb.where(qb.and(Properties.CityId.eq(cityId),Properties.InfoType.eq(HBContant.CITYINFO_SL)));      qb.orderAsc(Properties.Id); // 排序依据      return  qb.list(); }

(2)获取firstname为“Joe”并且出生于1970年10月以后的所有user集合:

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QueryBuilder qb = userDao.queryBuilder(); qb.where(Properties.FirstName.eq( "Joe" ), qb.or(Properties.YearOfBirth.gt( 1970 ), qb.and(Properties.YearOfBirth.eq( 1970 ), Properties.MonthOfBirth.ge( 10 )))); List youngJoes = qb.list();

范例6：获取某列对象

1	picJsonDao.loadByRowId(picId);

2.增添/插入、修改

插入数据更加简单，也是只要一句代码便能搞定!

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public  void  addToPhotoTable(Photo p) {      photoDao.insert(p); }

插入时需要new一个新的对象，范例如下:

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DevOpenHelper helper =  new  DaoMaster.DevOpenHelper( this ,  "notes-db" ,  null );   db = helper.getWritableDatabase();   daoMaster =  new  DaoMaster(db);   daoSession = daoMaster.newSession();   noteDao = daoSession.getNoteDao();   Note note =  new  Note( null , noteText, comment,  new  Date());   noteDao.insert(note);

修改更新：

1 2	photoDao.insertOrReplace(photo); photoDao.insertInTx(photo);

3.删除:

(1)清空表格数据

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/** 清空相册图片列表的数据 */ public  void  clearPhoto() {      photoDao.deleteAll(); }

(2)删除某个对象

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public  void  deleteCityInfo( int  cityId) {      QueryBuilder qb = cityInfoDao.queryBuilder();      DeleteQuery bd = qb.where(Properties.CityId.eq(cityId)).buildDelete();      bd.executeDeleteWithoutDetachingEntities(); }

参考：https://github.com/greenrobot/greenDAO/issues/34

由上可见，使用greenDAO进行数据库的增删改查时及其方便，而且性能极佳。

(三)常用方法笔记

1.在Application实现得到DaoMaster和DaoSession的方法：

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private  static  DaoMaster daoMaster; private  static  DaoSession daoSession; /**   * 取得DaoMaster   *   * @param context   * @return   */ public  static  DaoMaster getDaoMaster(Context context) {      if  (daoMaster ==  null )      {          OpenHelper helper =  new  DaoMaster.DevOpenHelper(context, HBContant.DATABASE_NAME,  null );          daoMaster =  new  DaoMaster(helper.getWritableDatabase());      }      return  daoMaster; } /**   * 取得DaoSession   *   * @param context   * @return   */ public  static  DaoSession getDaoSession(Context context) {      if  (daoSession ==  null )      {          if  (daoMaster ==  null )          {              daoMaster = getDaoMaster(context);          }          daoSession = daoMaster.newSession();      }      return  daoSession; }

2.增删改查工具类:

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public  class  DBHelper {      private  static  Context mContext;      private  static  DBHelper instance;                                                                                                                                                                                                                                                                                                                                          private  CityInfoDBDao cityInfoDao;                                                                                                                                                                                                                                                                                                                                          private  DBHelper()      {      }                                                                                                                                                                                                                                                                                                                                          public  static  DBHelper getInstance(Context context)      {          if  (instance ==  null )          {              instance =  new  DBHelper();              if  (mContext ==  null )              {                  mContext = context;              }                                                                                                                                                                                                                                                                                                                                                          // 数据库对象              DaoSession daoSession = HBApplication.getDaoSession(mContext);              instance.cityInfoDao = daoSession.getCityInfoDBDao();          }          return  instance;      }                                                                                                                                                                                                                                                                                                                                          /** 添加数据 */      public  void  addToCityInfoTable(CityInfo item)      {          cityInfoDao.insert(item);      }                                                                                                                                                                                                                                                                                                                                          /** 查询 */      public  List getCityInfoList()      {          QueryBuilder qb = cityInfoDao.queryBuilder();          return  qb.list();      }                                                                                                                                                                                                                                                                                                                                          /** 查询 */      public  List getCityInfo()      {          return  cityInfoDao.loadAll(); // 查找图片相册      }                                                                                                                                                                                                                                                                                                                                          /** 查询 */      public  boolean  isSaved( int  Id)      {          QueryBuilder qb = cityInfoDao.queryBuilder();          qb.where(Properties.Id.eq(Id));          qb.buildCount().count();          return  qb.buildCount().count() >  0  ?  true  :  false ; // 查找收藏表      }                                                                                                                                                                                                                                                                                                                                          /** 删除 */      public  void  deleteCityInfoList( int  Id)      {          QueryBuilder qb = cityInfoDao.queryBuilder();          DeleteQuery bd = qb.where(Properties.Id.eq(Id)).buildDelete();          bd.executeDeleteWithoutDetachingEntities();      }                                                                                                                                                                                                                                                                                                                                          /** 删除 */      public  void  clearCityInfo()      {          cityInfoDao.deleteAll();      }                                                                                                                                                                                                                                                                                                                                          /** 通过城市id查找其类型id */      public  int  getTypeId( int  cityId)      {          QueryBuilder qb = cityInfoDao.queryBuilder();          qb.where(Properties.Id.eq(cityId));          if  (qb.list().size() >  0 )          {              return  qb.list().get( 0 ).getTypeId();          }          else          {              return  0 ;          }      }                                                                                                                                                                                                                                                                                                                                          /** 多重查询 */      public  List getIphRegionList( int  cityId)      {          QueryBuilder qb = cityInfoDao.queryBuilder();          qb.where(qb.and(Properties.CityId.eq(cityId), Properties.InfoType.eq(HBContant.CITYINFO_IR)));          qb.orderAsc(Properties.Id); // 排序依据          return  qb.list();      } }

另外，还有多表关联、惰性加载等功能，待后续研究。

参考资料：

1.https://github.com/greenrobot/greenDAO

2.http://greendao-orm.com/documentation/how-to-get-started/

3.http://blog.csdn.net/krislight/article/details/9391455

4.http://blog.loadlimits.info/2013/01/androidのorm、greendaoを使ってみた/

5.http://leebart.tumblr.com/post/58408230144/how-to-daogenerator

6.http://www.androidanalyse.com/greendao-an-android-orm-for-sqlite/

博客地址:http://glblong.blog.51cto.com/3058613/1354953

转自：https://github.com/Trinea/android-open-project

目前包括：

Android开源项目第一篇——个性化控件(View)篇
  包括ListView、ActionBar、Menu、ViewPager、Gallery、GridView、ImageView、ProgressBar、其他
Android开源项目第二篇——工具库篇
  包括依赖注入、图片缓存、网络相关、数据库ORM工具包、Android公共库、高版本向低版本兼容库、多媒体、事件总线、传感器、安全、其他
Android开源项目第三篇——优秀项目篇
  比较有意思的完整的Android项目
Android开源项目第四篇——开发及测试工具篇
  包括开发效率工具、开发自测相关、测试工具、开发及编译环境、其他
Android开源项目第五篇——优秀个人和团体篇
  乐于分享并且有一些很不错的开源项目的个人和组织，包括JakeWharton、Chris Banes、Koushik Dutta等大牛

感谢xalexchen youxiachai stormzhang补充

第一部分 个性化控件(View)

主要介绍那些不错个性化的View，包括ListView、ActionBar、Menu、ViewPager、Gallery、GridView、ImageView、ProgressBar及其他如Dialog、Toast、EditText、TableView、Activity Animation等等。

一、ListView

1. android-pulltorefresh 一个强大的拉动刷新开源项目，支持各种控件下拉刷新
   ListView、ViewPager、WevView、ExpandableListView、GridView、(Horizontal
   )ScrollView、Fragment上下左右拉动刷新，比下面johannilsson那个只支持ListView的强大的多。并且他实现的下拉刷新ListView在item不足一屏情况下也不会显示刷新提示，体验更好。
   项目地址：https://github.com/chrisbanes/Android-PullToRefresh
   Demo地址：https://github.com/Trinea/TrineaDownload/blob/master/pull-to-refreshview-demo.apk?raw=true
   APP示例：新浪微博各个页面

2. android-pulltorefresh-listview 下拉刷新ListView
   项目地址：https://github.com/johannilsson/android-pulltorefresh
   Demo地址：https://github.com/Trinea/TrineaDownload/blob/master/pull-to-refresh-listview-demo.apk?raw=true
   PS：这个被很多人使用的项目实际有不少bug，推荐使用上面的android-pulltorefresh

3. DropDownListView 下拉刷新及滑动到底部加载更多ListView
   项目地址：https://github.com/Trinea/AndroidCommon
   Demo地址：https://play.google.com/store/apps/details?id=cn.trinea.android.demo
   文档介绍：http://www.trinea.cn/?p=523

4. DragSortListView 拖动排序的ListView
   同时支持ListView滑动item删除，各个Item高度不一、单选、复选、CursorAdapter做为适配器、拖动背景变化等
   项目地址：https://github.com/bauerca/drag-sort-listview
   Demo地址：https://play.google.com/store/apps/details?id=com.mobeta.android.demodslv
   APP示例：Wordpress Android

5. SwipeListView 支持定义ListView左右滑动事件，支持左右滑动位移，支持定义动画时间
   项目地址：https://github.com/47deg/android-swipelistview
   Demo地址：https://play.google.com/store/apps/details?id=com.fortysevendeg.android.swipelistview
   APP示例：微信

6. Android-SwipeToDismiss 滑动Item消失ListView
   项目地址：https://github.com/romannurik/Android-SwipeToDismiss
   支持3.0以下版本见：https://github.com/JakeWharton/SwipeToDismissNOA
   Demo地址：https://github.com/JakeWharton/SwipeToDismissNOA/SwipeToDismissNOA.apk/qr_code

7. StickyListHeaders GroupName滑动到顶端时会固定不动直到另外一个GroupName到达顶端的ExpandListView，支持快速滑动，支持Android2.3及以上
   项目地址：https://github.com/emilsjolander/StickyListHeaders
   APP示例：Android 4.0联系人
   效果图：

8. pinned-section-listview GroupName滑动到顶端时会固定不动直到另外一个GroupName到达顶端的ExpandListView
   项目地址：https://github.com/beworker/pinned-section-listview
   效果图：

9. PinnedHeaderListView GroupName滑动到顶端时会固定不动直到另外一个GroupName到达顶端的ExpandListView
   项目地址：https://github.com/JimiSmith/PinnedHeaderListView

10. QuickReturnHeader ListView/ScrollView的header或footer，当向下滚动时消失，向上滚动时出现
    项目地址：https://github.com/ManuelPeinado/QuickReturnHeader
    Demo地址：https://github.com/Trinea/TrineaDownload/blob/master/quick-return-header-demo.apk?raw=true
    APP示例：google plus

11. IndexableListView ListView右侧会显示item首字母快捷索引，点击可快速滑动到某个item
    项目地址：https://github.com/woozzu/IndexableListView
    Demo地址：https://github.com/Trinea/TrineaDownload/blob/master/indexable-listview.apk?raw=true
    APP示例：微信通讯录、小米联系人

12. CustomFastScrollView ListView快速滑动，同时屏幕中间PopupWindows显示滑动到的item内容或首字母
    项目地址：https://github.com/nolanlawson/CustomFastScrollViewDemo
    效果图：

13. Android-ScrollBarPanel ListView滑动时固定的Panel指示显示在scrollbar旁边
    项目地址：https://github.com/rno/Android-ScrollBarPanel
    效果展示：https://github.com/rno/Android-ScrollBarPanel/raw/master/demo_capture.png

14. SlideExpandableListView 用户点击listView item滑出固定区域，其他item的区域收缩
    项目地址：https://github.com/tjerkw/Android-SlideExpandableListView
    Demo地址：https://github.com/Trinea/TrineaDownload/blob/master/slide-expandable-listView-demo.apk?raw=true

15. JazzyListView ListView及GridView item以特殊动画效果进入屏幕，效果包括grow、cards、curl、wave、flip、fly等等
    项目地址：https://github.com/twotoasters/JazzyListView
    Demo地址：https://play.google.com/store/apps/details?id=com.twotoasters.jazzylistview.sample
    效果展示：http://lab.hakim.se/scroll-effects/

16. ListViewAnimations 带Item显示动画的ListView，动画包括底部飞入、其他方向斜飞入、下层飞入、渐变消失、滑动删除等
    项目地址：https://github.com/nhaarman/ListViewAnimations
    Demo地址：https://play.google.com/store/apps/details?id=com.haarman.listviewanimations
    APP示例：Google plus、Google Now卡片式进入、小米系统中应用商店、联系人、游戏中心、音乐、文件管理器的ListView、Ultimate、Light Flow Lite、TreinVerkeer、Running Coach、Pearl Jam Lyrics、Calorie Chart、Car Hire、Super BART、DK FlashCards、Counter Plus、Voorlees Verhaaltjes 2.0

17. DevsmartLib-Android 横向ListView
    项目地址：https://github.com/dinocore1/DevsmartLib-Android
    Demo地址：https://github.com/Trinea/TrineaDownload/blob/master/horizontal-listview-demo.apk?raw=true

18. HorizontalVariableListView 支持Item宽度不一致的ListView
    项目地址：https://github.com/sephiroth74/HorizontalVariableListView
    

二、ActionBar

1. ActionBarSherlock 为Android所有版本提供统一的ActionBar，解决4.0以下ActionBar的适配问题
   项目地址：https://github.com/JakeWharton/ActionBarSherlock
   Demo地址：https://play.google.com/store/apps/details?id=com.actionbarsherlock.sample.demos
   APP示例：太多了。。现在连google都在用

2. ActionBar-PullToRefresh 下拉刷新，ActionBar出现加载中提示
   项目地址：https://github.com/chrisbanes/ActionBar-PullToRefresh
   Demo地址：https://play.google.com/store/apps/details?id=uk.co.senab.actionbarpulltorefresh.samples.stock
   APP示例：Gmail，Google plus，知乎等

3. FadingActionBar ListView向下滚动逐渐显现的ActionBar
   项目地址：https://github.com/ManuelPeinado/FadingActionBar
   Demo地址：https://play.google.com/store/apps/details?id=com.manuelpeinado.fadingactionbar.demo
   APP示例：google music，知乎

4. NotBoringActionBar google music下拉收缩的ActionBar
   项目地址：https://github.com/flavienlaurent/NotBoringActionBar
   Demo地址：http://flavienlaurent.com/blog/2013/11/20/making-your-action-bar-not-boring/
   APP示例：Google音乐

5. RefreshActionItem 带进度显示和刷新按钮的ActionBar
   项目地址：https://github.com/ManuelPeinado/RefreshActionItem
   Demo地址：https://play.google.com/store/apps/details?id=com.manuelpeinado.refreshactionitem.demo
   APP示例：The New York Times，DevAppsDirect.

6. GlassActionBar 类似玻璃的有一定透明度的ActionBar
   项目地址：https://github.com/ManuelPeinado/GlassActionBar
   Demo地址：https://play.google.com/store/apps/details?id=com.manuelpeinado.glassactionbardemo
   APP示例：google music
   

三、Menu

1. MenuDrawer 滑出式菜单，通过拖动屏幕边缘滑出菜单，支持屏幕上下左右划出，支持当前View处于上下层，支持Windows边缘、ListView边缘、ViewPager变化划出菜单等。
   项目地址：https://github.com/SimonVT/android-menudrawer
   Demo地址：http://simonvt.github.io/android-menudrawer/
   APP示例：Gmail、Google Music等大部分google app

2. SlidingMenu 滑出式菜单，通过拖动屏幕边缘滑出菜单，支持屏幕左右划出，支持菜单zoom、scale、slide up三种动画样式出现。
   项目地址：https://github.com/jfeinstein10/SlidingMenu
   Demo地址：https://play.google.com/store/apps/details?id=com.slidingmenu.example
   APP示例：Foursquare, LinkedIn, Zappos, Rdio, Evernote Food, Plume, VLC for Android, ESPN ScoreCenter, MLS MatchDay, 9GAG, Wunderlist 2, The Verge, MTG Familiar, Mantano Reader, Falcon Pro (BETA), MW3 Barracks
   MenuDrawer和SlidingMenu比较：SlidingMenu支持菜单动画样式出现，MenuDrawer支持菜单view处于内容的上下层

3. ArcMenu 支持类似Path的左下角动画旋转菜单及横向划出菜单、圆心弹出菜单
   项目地址：https://github.com/daCapricorn/ArcMenu
   APP示例：Path
   效果图：
   https://dl.dropboxusercontent.com/u/11369687/preview1.png
   https://dl.dropboxusercontent.com/u/11369687/raymenu.png

4. android-satellite-menu 类似Path的左下角动画旋转菜单
   项目地址：https://github.com/siyamed/android-satellite-menu
   Demo地址：https://github.com/Trinea/TrineaDownload/blob/master/satellite-menu-demo.apk?raw=true
   APP示例：Path

5. radial-menu-widget 圆形菜单，支持二级菜单
   项目地址：https://code.google.com/p/radial-menu-widget/
   效果图：http://farm8.staticflickr.com/7377/11621125154_d1773c2dcc_o.jpg

6. Android Wheel Menu 圆形旋转选取菜单
   项目地址：https://github.com/anupcowkur/Android-Wheel-Menu
   效果图：

7. FoldingNavigationDrawer滑动并以折叠方式打开菜单
   项目地址：https://github.com/tibi1712/FoldingNavigationDrawer-Android
   使用介绍：https://play.google.com/store/apps/details?id=com.ptr.folding.sample
   效果图：
   

四、ViewPager 、Gallery

1. Android-ViewPagerIndicator 配合ViewPager使用的Indicator，支持各种位置和样式
   项目地址：https://github.com/JakeWharton/Android-ViewPagerIndicator
   Demo地址：https://play.google.com/store/apps/details?id=com.viewpagerindicator.sample
   APP示例：太多了。。

2. JazzyViewPager 支持Fragment切换动画的ViewPager，动画包括转盘、淡入淡出、翻页、层叠、旋转、方块、翻转、放大缩小等
   项目地址：https://github.com/jfeinstein10/JazzyViewPager
   Demo地址：https://github.com/jfeinstein10/JazzyViewPager/blob/master/JazzyViewPager.apk?raw=true
   效果类似桌面左右切换的各种效果，不过桌面并非用ViewPager实现而已

3. Android-DirectionalViewPager 支持横向和纵向(垂直)的ViewPager
   项目地址：https://github.com/JakeWharton/Android-DirectionalViewPager
   Demo地址：https://market.android.com/details?id=com.directionalviewpager.sample

4. android-pulltorefresh 支持下拉刷新的ViewPager
   项目地址：https://github.com/chrisbanes/Android-PullToRefresh
   Demo地址：https://github.com/Trinea/TrineaDownload/blob/master/pull-to-refreshview-demo.apk?raw=true
   APP示例：新浪微博各个页面

5. FancyCoverFlow支持Item切换动画效果的类似Gallery View
   项目地址：https://github.com/davidschreiber/FancyCoverFlow
   Demo地址：https://play.google.com/store/apps/details?id=at.technikum.mti.fancycoverflow.samples
   效果图：

6. AndroidTouchGallery 支持双击或双指缩放的Gallery(用ViewPager实现)
   相比下面的PhotoView，在被放大后依然能滑到下一个item，并且支持直接从url和文件中获取图片，
   项目地址：https://github.com/Dreddik/AndroidTouchGallery
   Demo地址：https://github.com/Trinea/TrineaDownload/blob/master/touch-gallery-demo.apk?raw=true
   APP示例：类似微信中查看聊天记录图片时可双击放大，并且放大情况下能正常左右滑动到前后图片

7. Salvage view 带View缓存的Viewpager PagerAdapter，很方便使用
   项目地址：https://github.com/JakeWharton/salvage

8. Android PagerSlidingTabStrip 配合ViewPager使用的Indicator，支持ViewPager Scroll时Indicator联动
   项目地址：https://github.com/astuetz/PagerSlidingTabStrip
   Demo地址：https://play.google.com/store/apps/details?id=com.astuetz.viewpager.extensions.sample
   

五、GridView

1. StaggeredGridView 允许非对齐行的GridView
   类似Pinterest的瀑布流，并且跟ListView一样自带View缓存，继承自ViewGroup
   项目地址：https://github.com/maurycyw/StaggeredGridView
   Demo地址：https://github.com/Trinea/TrineaDownload/blob/master/staggered-gridview-demo.apk?raw=true
   APP示例：Pinterest等

2. AndroidStaggeredGrid 允许非对齐行的GridView
   类似Pinterest的瀑布流，继承自AbsListView
   项目地址：https://github.com/etsy/AndroidStaggeredGrid
   APP示例：Pinterest等

3. PinterestLikeAdapterView 允许非对齐行的GridView
   类似Pinterest的瀑布流，允许下拉刷新
   项目地址：https://github.com/GDG-Korea/PinterestLikeAdapterView
   APP示例：Pinterest等

4. DraggableGridView Item可拖动交换位置的GridView
   实际是自己继承ViewGroup实现，类似桌面的单屏效果，可屏幕自动上下滚动进行Item移动交换，多屏效果见下面6. Android-DraggableGridViewPager
   项目地址：https://github.com/thquinn/DraggableGridView
   Demo地址：https://github.com/thquinn/DraggableGridView/blob/master/bin/DraggableGridViewSample.apk?raw=true

5. StickyGridHeaders GroupName滑动到顶端时会固定不动直到另外一个GroupName到达顶端的GridView
   项目地址：https://github.com/TonicArtos/StickyGridHeaders
   效果图：

6. Android-DraggableGridViewPager Item可拖动交换位置的GridView
   实际是自己继承ViewGroup实现，类似桌面的多屏效果，可屏幕自动左右滚动进行Item移动交换，单屏效果见上面4. DraggableGridView
   项目地址：https://github.com/zzhouj/Android-DraggableGridViewPager
   Demo地址：https://github.com/Trinea/trinea-download/blob/master/draggable-grid-viewpager-demo.apk?raw=true
   

六、ImageView

1. PhotoView 支持双击或双指缩放的ImageView
   在ViewPager等Scrolling view中正常使用，相比上面的AndroidTouchGallery，不仅支持ViewPager，同时支持单个ImageView
   项目地址：https://github.com/chrisbanes/PhotoView
   Demo地址：https://play.google.com/store/apps/details?id=uk.co.senab.photoview.sample
   APP示例：photup

2. android-gif-drawable 支持gif显示的view
   项目地址：https://github.com/koral--/android-gif-drawable
   用jni实现的，编译生成so库后直接xml定义view即可，而且本身不依赖于其他开源项目所以相对下面的ImageViewEx简单的多

3. ImageViewEx 支持Gif显示的ImageView
   项目地址：https://github.com/frapontillo/ImageViewEx
   Demo地址：https://github.com/Trinea/TrineaDownload/blob/master/imageviewex-demo.apk?raw=true
   依赖很多，编译过程很繁琐!|_|!

4. RoundedImageView 带圆角的ImageView
   项目地址：https://github.com/vinc3m1/RoundedImageView
   效果图：

5. ColorArt 根据图片的均色设置背景色显示文字和图片，类似itune11中效果
   项目地址：https://github.com/MichaelEvans/ColorArt
   Demo地址：https://github.com/Trinea/TrineaDownload/blob/master/color-art-demo.apk?raw=true

6. CircleImageView 圆形的ImageView
   项目地址：https://github.com/hdodenhof/CircleImageView
   效果图：

7. ImageViewZoom 支持放大和平移的ImageView
   项目地址：https://github.com/sephiroth74/ImageViewZoom
   APP示例：https://play.google.com/store/apps/details?id=com.aviary.android.feather

七、ProgressBar

1. SmoothProgressBar 水平进度条
   项目地址：https://github.com/castorflex/SmoothProgressBar
   Demo地址：https://play.google.com/store/apps/details?id=fr.castorflex.android.smoothprogressbar.sample

2. ProgressWheel 支持进度显示的圆形ProgressBar
   项目地址：https://github.com/Todd-Davies/ProgressWheel
   Demo地址：https://github.com/Trinea/TrineaDownload/blob/master/progress-wheel-demo.apk?raw=true

3. android-square-progressbar 在图片周围显示进度
   项目地址：https://github.com/mrwonderman/android-square-progressbar
   Demo地址：https://play.google.com/store/apps/details?id=net.yscs.android.square_pr

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