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Include:

1. Personalized Views
*   include ListView, ActionBar, Menu, ViewPager, Gallery, ImageView, ProgressBar, TextView, ScrollView, TimeView, TipView, FlipView, ColorPickView, GraphView, UI Style, Others*
2. Common Util Libs
*  include Dependency Injection, ImageCache, Network, Database ORM, Android common lib, Compatible low version, Multimedia, Event Bus, Sensor, Security, Maps, Plug-in, File, Others*
3. Excellent projects
*  more interesting android project*
4. Development and testing tools
*  include Development productivity tools, Develop self-test related, Testing tools, Development and build environment, Others*
5. Outstanding individuals and groups
*  Willing to share and have some very good open source project Individual and Group,include JakeWharton, Chris Banes, Koushik Dutta and so on*

Thank likebamoo vmlinz xalexchen youxiachai stormzhang

1. Personalized Views

Customed View. include ListView, ActionBar, Menu, ViewPager, Gallery, GridView, ImageView, ProgressBar, Dialog, Toast, EditText, TableView, Activity Animation and so on。

1. ListView

  1. android-pulltorefresh
    Provide a reusable Pull to Refresh widget for Android, support ListView, ExpandableListView, GridView, WebView, ScrollView, HorizontalScrollView, ViewPager, support pulling Down from the top, and Pulling Up from the bottom and so on.
    Project Address: https://github.com/chrisbanes/Android-PullToRefresh
    Demo Apk: https://github.com/Trinea/TrineaDownload/blob/master/pull-to-refreshview-demo.apk?raw=true
    Similar App: Sina Weibo Pages

  2. android-pulltorefresh-listview
    Pull to refresh listView for android, There is some bug for this
    Project Address: https://github.com/johannilsson/android-pulltorefresh
    Demo Apk: https://github.com/Trinea/TrineaDownload/blob/master/pull-to-refresh-listview-demo.apk?raw=true

  3. android-Ultra-Pull-to-Refresh
    It's a replacement for the deprecated pull to refresh solution. It can contain any view you want. It's easy to use and more powerful than SwipeRefreshLayout. It's well designed, you can customize the UI effect you want as easy as adding a headview to ListView. Support API LEVEL >= 8 Project Address: https://github.com/liaohuqiu/android-Ultra-Pull-To-Refresh
    Demo Apk: https://github.com/liaohuqiu/android-Ultra-Pull-To-Refresh/blob/master/ptr-demo/target/ultra-ptr-demo.apk?raw=true

1. DropDownListView Pull to refresh and load more when on bottom listView for android Project Address: https://github.com/Trinea/AndroidCommon Demo Apk: https://play.google.com/store/apps/details?id=cn.trinea.android.demo Document: http://www.trinea.cn/android/dropdown-to-refresh-and-bottom-load-more-listview/ 1. DragSortListView Android ListView with drag and drop reordering. Project Address: https://github.com/bauerca/drag-sort-listview Demo Apk: https://play.google.com/store/apps/details?id=com.mobeta.android.demodslv Similar App: Wordpress Android 1. SwipeListView An Android List View implementation with support for drawable cells and many other swipe related features Project Address: https://github.com/47deg/android-swipelistview Demo Apk: https://play.google.com/store/apps/details?id=com.fortysevendeg.android.swipelistview Similar App: 微信
  1. SlideAndDragListView
    An extension of the Android ListView that enables slide and drag-and-drop reordering of list items.
    Project Address: https://github.com/yydcdut/SlideAndDragListView
    Demo Apk: https://github.com/yydcdut/SlideAndDragListView/blob/master/apk/sdlv.apk?raw=true
    Similar App: Android 手机QQ 5.0
    Renderings: Renderings

  2. RecyclerViewSwipeDismiss lightweight support-v7 RecyclerView Swipe to dismiss library,Just bind onTouchListener Project Address:https://github.com/CodeFalling/RecyclerViewSwipeDismiss Renderings: Renderings

  3. Android-SwipeToDismiss Android swipe to dismiss listView
    Project Address: https://github.com/romannurik/Android-SwipeToDismiss
    Demo Apk: https://github.com/JakeWharton/SwipeToDismissNOA/SwipeToDismissNOA.apk/qr_code

  4. StickyListHeaders
    An android library for section headers of listView that stick to the top
    Project Address: https://github.com/emilsjolander/StickyListHeaders
    Similar App: Contacts app of Android 4.0 Ice Cream Sandwich
    Renderings: Renderings

  5. pinned-section-listview
    Easy to use ListView with pinned sections for Android. Pinned section is a header view which sticks to the top of the list until at least one item of that section is visible.
    Project Address: https://github.com/beworker/pinned-section-listview
    Renderings: Renderings

  6. PinnedHeaderListView
    A ListView with pinned section headers for Android
    Project Address: https://github.com/JimiSmith/PinnedHeaderListView

  7. QuickReturnHeader
    A ListView/ScrollView header that hides when scrolling down and reappears immediately when scrolling up, regardless of how far down the list we've gone.
    Project Address: https://github.com/ManuelPeinado/QuickReturnHeader
    Demo Apk: https://github.com/Trinea/TrineaDownload/blob/master/quick-return-header-demo.apk?raw=true
    Similar App: google plus

  8. IndexableListView
    iPhone like fast scroll ListView on Android with non-alphabetic overlays
    Project Address: https://github.com/woozzu/IndexableListView
    Demo Apk: https://github.com/Trinea/TrineaDownload/blob/master/indexable-listview.apk?raw=true
    Similar App: Weichat contact

  9. CustomFastScrollView
    A FastScrollView with non-alphabetic overlays
    Project Address: https://github.com/nolanlawson/CustomFastScrollViewDemo
    Renderings: Renderings

  10. Android-ScrollBarPanel
    Android-ScrollBarPanel allows to attach a View to a scroll indicator like it's done in Path 2.0
    Project Address: https://github.com/rno/Android-ScrollBarPanel
    Renderings: Renderings

  11. SlideExpandableListView
    A better ExpandableListView, with animated expandable views for each list item
    Project Address: https://github.com/tjerkw/Android-SlideExpandableListView
    Demo Apk: https://github.com/Trinea/TrineaDownload/blob/master/slide-expandable-listView-demo.apk?raw=true

  12. JazzyListView
    JazzyListView is an extension of ListView designed to animate list item views as they become visible. There are a number of pre-built, bundled effects that can be used by setting the effect in code or an XML layout attribute, like grow, cards, curl, wave, flip, fly. Also, it is possible to use a custom effect by implementing a JazzyEffect.
    Project Address: https://github.com/twotoasters/JazzyListView
    Demo Apk: https://play.google.com/store/apps/details?id=com.twotoasters.jazzylistview.sample

  13. ListViewAnimations
    An Android library which allows developers to easily add animations to ListView items
    Project Address: https://github.com/nhaarman/ListViewAnimations
    Demo Apk: https://play.google.com/store/apps/details?id=com.haarman.listviewanimations
    Similar App: Google plus, Google Now, Ultimate, Light Flow Lite, TreinVerkeer, Running Coach, Pearl Jam Lyrics, Calorie Chart, Car Hire, Super BART, DK FlashCards, Counter Plus, Voorlees Verhaaltjes 2.0

  14. DevsmartLib-Android
    A Horizontal ListView for Android
    Project Address: https://github.com/dinocore1/DevsmartLib-Android
    Demo Apk: https://github.com/Trinea/TrineaDownload/blob/master/horizontal-listview-demo.apk?raw=true

  15. HorizontalVariableListView
    Horizontal list view for Android which allows variable items widths
    Project Address: https://github.com/sephiroth74/HorizontalVariableListView

  16. LinearListView
    Android library that allows you to bind a LinearLayout with a ListAdapter.
    Project Address: https://github.com/frankiesardo/LinearListView

  17. MultiChoiceAdapter
    A ListView adapter with support for multiple choice modal selection
    Project Address: https://github.com/ManuelPeinado/MultiChoiceAdapter
    Demo Apk: https://play.google.com/store/apps/details?id=com.manuelpeinado.multichoiceadapter.demo

  18. EnhancedListView
    An Android ListView with enhanced functionality (e.g. Swipe To Dismiss and Undo)
    Project Address: https://github.com/timroes/EnhancedListView
    Demo Apk: https://play.google.com/store/apps/details?id=de.timroes.android.listviewdemo&rdid=de.timroes.android.listviewdemo

  19. ListBuddies
    Android library of a pair of auto-scroll circular parallax ListViews like the ones on the expedia app home page.
    Project Address: https://github.com/jpardogo/ListBuddies
    Demo Apk: https://play.google.com/store/apps/details?id=com.jpardogo.android.listbuddies
    Renderings: Renderings

  20. RecyclerItemDecoration
    RecyclerItemDecoration allows you to draw divider between items in recyclerview with multiple ViewType without considering items' positions! You don't need to think about items' position! You need to care about their ViewType!!
    Project Address: https://github.com/magiepooh/RecyclerItemDecoration
    Renderings: Renderings: Renderings:

2. ActionBar

  1. ActionBarSherlock
    Action bar implementation which uses the native action bar on Android 4.0+ and a custom implementation on pre-4.0 through a single API and theme.
    Project Address: https://github.com/JakeWharton/ActionBarSherlock
    Demo Apk: https://play.google.com/store/apps/details?id=com.actionbarsherlock.sample.demos

  2. ActionBar-PullToRefresh
    ActionBar-PullToRefresh provides an easy way to add a modern version of the pull-to-refresh interaction to your application.
    Project Address: https://github.com/chrisbanes/ActionBar-PullToRefresh
    Demo Apk: https://play.google.com/store/apps/details?id=uk.co.senab.actionbarpulltorefresh.samples.stock
    Similar App: Gmail,Google plus

  3. FadingActionBar
    Android library implementing a fading effect for the action bar, similar to the one found in the Play Music app
    Project Address: https://github.com/ManuelPeinado/FadingActionBar
    Demo Apk: https://play.google.com/store/apps/details?id=com.manuelpeinado.fadingactionbar.demo
    Similar App: google music

  4. NotBoringActionBar
    Auto dismis actionbar when content scroll down
    Project Address: https://github.com/flavienlaurent/NotBoringActionBar
    Demo Apk: http://flavienlaurent.com/blog/2013/11/20/making-your-action-bar-not-boring/
    Similar App: google music

  5. RefreshActionItem
    An action bar item which acts both as a refresh button and as a progress indicator
    Project Address: https://github.com/ManuelPeinado/RefreshActionItem
    Demo Apk: https://play.google.com/store/apps/details?id=com.manuelpeinado.refreshactionitem.demo
    Similar App: The New York Times,DevAppsDirect.

  6. GlassActionBar
    An Android library which implements a glass-like effect for the action bar
    Project Address: https://github.com/ManuelPeinado/GlassActionBar
    Demo Apk: https://play.google.com/store/apps/details?id=com.manuelpeinado.glassactionbardemo
    Similar App: google music

  1. MenuDrawer
    A slide-out menu implementation, which allows users to navigate between views in your app. Most commonly the menu is revealed by either dragging the edge of the screen, or clicking the 'up' button in the action bar. It support content below or up to menu when compare to SlidingMenu.
    Project Address: https://github.com/SimonVT/android-menudrawer
    Demo Apk: http://simonvt.github.io/android-menudrawer/
    Similar App: Gmail, Google Music

  2. SlidingMenu
    An Android library that allows you to easily create applications with slide-in menus. It support animation when compare to MenuDrawer.
    Project Address: https://github.com/jfeinstein10/SlidingMenu
    Demo Apk: https://play.google.com/store/apps/details?id=com.slidingmenu.example
    Similar App: 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

  3. ArcMenu
    An android custom view which looks like the menu in Path 2.0 for iOS.
    Project Address: https://github.com/daCapricorn/ArcMenu
    Similar App: Path
    Renderings: Renderings

  4. android-satellite-menu
    Android Satellite Menu
    Project Address: https://github.com/siyamed/android-satellite-menu
    Demo Apk: https://github.com/Trinea/TrineaDownload/blob/master/satellite-menu-demo.apk?raw=true
    Similar App: Path

  5. radial-menu-widget
    A radial (pie) menu for Android
    Project Address: https://code.google.com/p/radial-menu-widget/
    Renderings: http://farm8.staticflickr.com/7377/11621125154_d1773c2dcc_o.jpg

  6. Android Wheel Menu
    Circular menu widget for Android.
    Project Address: https://github.com/anupcowkur/Android-Wheel-Menu
    Renderings: Renderings

  7. FoldingNavigationDrawer
    Folding navigation drawer for android.
    Project Address: https://github.com/tibi1712/FoldingNavigationDrawer-Android
    Demo Apk: https://play.google.com/store/apps/details?id=com.ptr.folding.sample
    Renderings: Renderings

  8. AndroidResideMenu
    The idea of ResideMenu is from Dribbble 1 and 2 likes iOS ResideMenu
    Project Address: https://github.com/SpecialCyCi/AndroidResideMenu
    Renderings: Renderings

  9. FloatingActionMenu-Animation
    Extended FloatingActionMenu lib, with custom menu icon, animation when scrolling Project Address: https://github.com/toanvc/FloatingActionMenu-Animation
    Renderings: Renderings

  1. Android-ViewPagerIndicator
    Paging indicator widgets compatible with the ViewPager from the Android Support Library and ActionBarSherlock. Originally based on Patrik Åkerfeldt's ViewFlow.
    Project Address: https://github.com/JakeWharton/Android-ViewPagerIndicator
    Demo Apk: https://play.google.com/store/apps/details?id=com.viewpagerindicator.sample

  2. JazzyViewPager
    An easy to use ViewPager that adds an awesome set of custom swiping animations. Just change your ViewPagers to JazzyViewPagers and you're good to go!
    Project Address: https://github.com/jfeinstein10/JazzyViewPager
    Demo Apk: https://github.com/jfeinstein10/JazzyViewPager/blob/master/JazzyViewPager.apk?raw=true

  3. Android-DirectionalViewPager
    ViewPager class that supports paging both vertically and horizontally as well as changing between the two at runtime.
    Project Address: https://github.com/JakeWharton/Android-DirectionalViewPager
    Demo Apk: https://market.android.com/details?id=com.directionalviewpager.sample

  4. android-pulltorefresh
    Provide a reusable Pull to Refresh widget for Android, support ListView, ExpandableListView, GridView, WebView, ScrollView, HorizontalScrollView, ViewPager, support pulling Down from the top, and Pulling Up from the bottom and so on.
    Project Address: https://github.com/chrisbanes/Android-PullToRefresh
    Demo Apk: https://github.com/Trinea/TrineaDownload/blob/master/pull-to-refreshview-demo.apk?raw=true

  5. FancyCoverFlow
    FancyCoverFlow is a flexible Android widget providing out of the box view transformations to give your app a unique look and feel.
    Project Address: https://github.com/davidschreiber/FancyCoverFlow
    Demo Apk: https://play.google.com/store/apps/details?id=at.technikum.mti.fancycoverflow.samples
    Renderings: Renderings

  6. AndroidTouchGallery
    Android widget for gallery, using viewpager. Allow pinch zoom and drag for images by url. Widget allows use it in Android > 2.0
    Project Address: https://github.com/Dreddik/AndroidTouchGallery
    Demo Apk: https://github.com/Trinea/TrineaDownload/blob/master/touch-gallery-demo.apk?raw=true

  7. Android Auto Scroll ViewPager
    Android Auto scroll ViewPager or ViewPager in ViewPager
    Project Address: https://github.com/Trinea/android-auto-scroll-view-pager
    Demo Apk: https://play.google.com/store/apps/details?id=cn.trinea.android.demo
    Document: http://www.trinea.cn/android/auto-scroll-view-pager/

  8. Salvage view
    Generic view recycler and ViewPager PagerAdapter implementation.
    Project Address: https://github.com/JakeWharton/salvage

  9. Android PagerSlidingTabStrip
    An interactive indicator to navigate between the different pages of a ViewPager
    Project Address: https://github.com/astuetz/PagerSlidingTabStrip
    Demo Apk: https://play.google.com/store/apps/details?id=com.astuetz.viewpager.extensions.sample

  10. SmartTabLayout
    A custom ViewPager title strip which gives continuous feedback to the user when scrolling.This library has been added some features and utilities based on android-SlidingTabBasic project of Google Samples.
    Project Address: https://github.com/ogaclejapan/SmartTabLayout
    Demo Apk: https://play.google.com/store/apps/details?id=com.ogaclejapan.smarttablayout.demo
    Renderings: Renderings

  11. ViewPager3D
    A ViewPager with 3D effect
    Project Address: https://github.com/inovex/ViewPager3D

  12. AnimaTabsview
    A animation effect like 网易云音乐
    Project Address: https://github.com/wuyexiong/transparent-over-animtabsview
    Demo: http://v.youku.com/v_show/id_XNzA4MjY5NjA0.html

  13. LoopingViewPager A ViewPager which support loop scroll Project Address: https://github.com/imbryk/LoopingViewPager

  14. android_page_curl Paging effect of iReader Project Address: https://github.com/harism/android_page_curl Demo App:iReader Demo: https://www.youtube.com/watch?v=iwu7P5PCpsw

  15. ViewPagerIndicator A custom ViewPagerIndicator Project Address: https://github.com/LuckyJayce/ViewPagerIndicator

  16. ScreenSlideIndicator Lightweight ViewPager Cycle Indicadtor Project Address: ScreenSlidePager Renderings:

  17. ViewPager3D A ViewPager with 3D effect Project Address: https://github.com/inovex/ViewPager3D

  18. AnimaTabsview A animation effect like 网易云音乐 Project Address: https://github.com/wuyexiong/transparent-over-animtabsview Demo: http://v.youku.com/v_show/id_XNzA4MjY5NjA0.html

  19. LoopingViewPager A ViewPager which support loop scroll Project Address: https://github.com/imbryk/LoopingViewPager

  20. android_page_curl Paging effect of iReader Project Address: https://github.com/harism/android_page_curl Demo App: iReader Demo: https://www.youtube.com/watch?v=iwu7P5PCpsw

  21. ViewPagerIndicator A custom ViewPagerIndicator Project Address: https://github.com/LuckyJayce/ViewPagerIndicator

  22. ScreenSlideIndicator Lightweight ViewPager Cycle Indicadtor Project Address: ScreenSlidePager Renderings:

  23. RecyclerViewPager A ViewPager implemention inherits from RecyclerView. Support fling operation like gallary and custom fling speed. Support Fragment. Project Address: RecyclerViewPager Renderings:

  24. WoWoViewPager A material design Viewpager.Optimized for scrolling app intros or making your CV app. Free and open source. WoWoViewPager combines animations and viewpager. When you are swiping viewpager, you are also controlling the frames of the animation. Just like rewinding time. Project Address: WoWoViewPager Renderings:

5. GridView

  1. StaggeredGridView
    A modified version of Android's experimental StaggeredGridView. Includes own OnItemClickListener and OnItemLongClickListener, selector, and fixed position restore. contains cache, extends from ViewGroup
    Project Address: https://github.com/maurycyw/StaggeredGridView
    Demo Apk: https://github.com/Trinea/TrineaDownload/blob/master/staggered-gridview-demo.apk?raw=true
    Similar App: Pinterest

  2. AndroidStaggeredGrid
    An Android staggered grid view which supports multiple columns with rows of varying sizes. extends from AbsListView
    Project Address: https://github.com/etsy/AndroidStaggeredGrid
    Similar App: Pinterest

  3. PinterestLikeAdapterView
    An Android multi column list view like Pinterest. allow pull to refresh.
    Project Address: https://github.com/GDG-Korea/PinterestLikeAdapterView
    Similar App: Pinterest

  4. DraggableGridView
    A drag-and-drop scrolling grid view for Android, extends from ViewGroup. It can swich from up to bottom, If you want switch from left screen to right please use PagedDragDropGrid below
    Project Address: https://github.com/thquinn/DraggableGridView
    Demo Apk: https://github.com/thquinn/DraggableGridView/blob/master/bin/DraggableGridViewSample.apk?raw=true
    You can customize the width and height of item,and the count of item each line,You can also customize the padding of line.Default value is 20dp.
    Project Address: DraggableGridView
    Renderings:
    Renderings

  5. DividedDraggableView Draggable grid view with divided line. Project Address: https://github.com/andyken/DividedDraggableView Renderings: Renderings

  6. StickyGridHeaders
    StickyGridHeaders is an Android library that provides a GridView that shows items in sections with headers. By default the section headers stick to the top like the People app in Android 4.x but this can be turned off.
    Project Address: https://github.com/TonicArtos/StickyGridHeaders
    Renderings: Renderings

  7. PagedDragDropGrid
    An Android ViewGroup that implements a paged grid with drag'n'drop moveable items. It can swich from left screen to right, If you want switch from up to bottom please use DraggableGridView above
    Project Address: https://github.com/mrKlar/PagedDragDropGrid
    Demo视频:http://youtu.be/FYTSRfthSuQ

  8. Android-DraggableGridViewPager
    Zaker style grid view pager, support dragging & rearrange, using as zaker's main screen. Project Address: https://github.com/zzhouj/Android-DraggableGridViewPager
    Demo Apk: https://github.com/Trinea/trinea-download/blob/master/draggable-grid-viewpager-demo.apk?raw=true

  9. GridView with Header and Footer
    Same with ListView. It allows you call addHeaderView(), addFooterView to add views to GridView.
    Project Address:https://github.com/liaohuqiu/android-GridViewWithHeaderAndFooter
    Renderings:Screen Shot

6. ImageView

  1. PhotoView
    Implementation of ImageView for Android that supports zooming, by various touch gestures, like multi-touch and double-tap. Works perfectly when using used in a scrolling parent (such as ViewPager). Allows the application to be notified when the displayed Matrix has changed. Useful for when you need to update your UI based on the current zoom/scroll position.
    Project Address: https://github.com/chrisbanes/PhotoView
    Demo Apk: https://play.google.com/store/apps/details?id=uk.co.senab.photoview.sample
    Similar App: photup

  2. android-gif-drawable
    Views and Drawable for displaying animated GIFs on Android. Bundled GIFLib via JNI is used to render frames. This way should be more efficient than WebView or Movie classes. Animation starts automatically and run only if View with attached GifDrawable is visible.
    Project Address: https://github.com/koral--/android-gif-drawable

  3. ImageViewEx
    Extension of Android's ImageView that supports animated GIFs and includes a better density management.
    Project Address: https://github.com/frapontillo/ImageViewEx
    Demo Apk: https://github.com/Trinea/TrineaDownload/blob/master/imageviewex-demo.apk?raw=true

  4. RoundedImageView
    A fast ImageView that supports rounded corners and ovals or circles
    Project Address: https://github.com/vinc3m1/RoundedImageView
    Renderings: Renderings

  5. SelectableRoundedImageView
    ImageView that supports different radiuses on each corner. It also supports oval(and circle) shape and border.
    Project Address: https://github.com/pungrue26/SelectableRoundedImageView
    Demo Apk: https://play.google.com/store/apps/details?id=com.joooonho
    Renderings: Renderings

  6. ColorArt
    iTunes 11-style color matching code for Android, is a library that uses an image to create a themed image/text display
    Project Address: https://github.com/MichaelEvans/ColorArt
    Demo Apk: https://github.com/Trinea/TrineaDownload/blob/master/color-art-demo.apk?raw=true

  7. CircleImageView
    A circular ImageView for Android
    Project Address: https://github.com/hdodenhof/CircleImageView
    Renderings: Renderings

  8. ImageViewZoom
    Android ImageView widget with zoom and pan capabilities
    Project Address: https://github.com/sephiroth74/ImageViewZoom
    Similar App: https://play.google.com/store/apps/details?id=com.aviary.android.feather

  9. KenBurnsView
    Android library that provides an extension to ImageView that creates an immersive experience by animating its drawable using the Ken Burns Effect.
    Project Address: https://github.com/flavioarfaria/KenBurnsView

  10. CustomShapeImageView
    Custom shape ImageView using PorterDuffXfermode with paint shapes and SVGs.
    Project Address: https://github.com/MostafaGazar/CustomShapeImageView
    Renderings: Renderings

7. ProgressBar

  1. SmoothProgressBar
    A small Android library allowing you to have a smooth and customizable horizontal indeterminate ProgressBar
    Project Address: https://github.com/castorflex/SmoothProgressBar
    Demo Apk: https://play.google.com/store/apps/details?id=fr.castorflex.android.smoothprogressbar.sample

  2. ProgressWheel
    A progress wheel for android, intended for use instead of the standard progress bar.
    Project Address: https://github.com/Todd-Davies/ProgressWheel
    Demo Apk: https://github.com/Trinea/TrineaDownload/blob/master/progress-wheel-demo.apk?raw=true

  3. android-square-progressbar
    A progressbar which go's around an image.
    Project Address: https://github.com/mrwonderman/android-square-progressbar
    Demo Apk: https://play.google.com/store/apps/details?id=net.yscs.android.square_progressbar_example
    Similar App: square
    Renderings: Renderings

  4. HoloCircularProgressBar
    HoloCircularProgressBar is a Custom View implementation for Android you might know from the Android Clock App from Android 4.1
    Project Address: https://github.com/passsy/android-HoloCircularProgressBar
    Similar App: Android4.1 Clock App
    Renderings: Renderings

  5. ProgressButton
    A custom progress indicator with a tiny footprint.
    Project Address: https://github.com/f2prateek/progressbutton
    Document: http://f2prateek.com/progressbutton/
    Renderings: Renderings

  6. GoogleProgressBar
    Android library to display different kind of google related animations for the progressBar.
    Project Address: https://github.com/jpardogo/GoogleProgressBar
    Renderings: Renderings

  7. TH-ProgressButton
    Circular progress View button inspired by FFCircularProgressView
    Project Address: https://github.com/torryharris/TH-ProgressButton
    Renderings: Renderings Renderings Renderings Renderings

  8. NumberProgressBar ProgressBar with percentage number Project Address:https://github.com/daimajia/NumberProgressBar Renderings: Renderings

  9. CircularProgressDrawable Circular Progress Drawable Project Address:https://github.com/Sefford/CircularProgressDrawable Renderings: Renderings

  10. Android-RoundCornerProgressBar Android ProgressBar drawing Round Corner Project Address:https://github.com/akexorcist/Android-RoundCornerProgressBar Renderings: Renderings

  11. circular-progress-button Button could switch to show circular progress Project Address:https://github.com/dmytrodanylyk/circular-progress-button Renderings: Renderings

  12. WaveView A ProgressBar which showing wave look progress Project Address:https://github.com/john990/WaveView Demo地址:https://raw.github.com/john990/WaveView/master/screenshot%26apk/demo.unaligned.apk Renderings: Renderings

  13. MaterialLoadingProgressBar MaterialLoadingProgressBar provide a styled ProgressBar which looks like SwipeRefreshLayout's loading indicator(support-v4 v21+) Project Address:https://github.com/lsjwzh/MaterialLoadingProgressBar Renderings: Renderings

  14. LoadingDrawable some beautiful android loading drawable, can be combined with any view as the loading view and the progressbar.
    Project Address:https://github.com/dinuscxj/LoadingDrawable Renderings:
    LoadingDrawable LoadingDrawable LoadingDrawable LoadingDrawable

  15. StackedHorizontalProgressBar Stacked dual progress indicator progressbar

Project Address:https://github.com/nisrulz/stackedhorizontalprogressbar

Renderings:
Sc1

8. TextView

include TextView and other views extend TextView, like EditText, Button, RadioButton and so on

  1. android-flowtextview
    A TextView for Android which supports text wrapping around other views
    Project Address: https://code.google.com/p/android-flowtextview/
    Renderings: http://i949.photobucket.com/albums/ad332/vostroman1500/1.png

  2. Android Form EditText
    Android form edit text is an extension of EditText that brings data validation facilities to the edittext.
    Project Address: https://github.com/vekexasia/android-edittext-validator
    Demo Apk: https://play.google.com/store/apps/details?id=com.andreabaccega.edittextformexample

  3. Emojicon
    A library to show emoji in TextView, EditText (like WhatsApp) for Android
    Project Address: https://github.com/rockerhieu/emojicon
    Document: http://rockerhieu.com/emojicon/

  4. android-circlebutton
    Circle button widget for Android, extend from ImageView actually
    Project Address: https://github.com/markushi/android-circlebutton
    Demo Apk: https://github.com/markushi/android-circlebutton/blob/master/example/example.apk

  5. Segmented Radio Buttons for Android
    Android implementation of iPhone's segmented control
    Project Address: https://github.com/vinc3m1/android-segmentedradiobutton
    Demo Apk: https://github.com/thquinn/DraggableGridView/blob/master/bin/DraggableGridViewSample.apk?raw=true
    Renderings: Renderings

  6. Chips EditText Library
    Chips EditText, Token EditText, Bubble EditText, Spannable EditText and etc.. There are many names of this control. Implement by SpannableStringBuilder actually
    Project Address: https://github.com/kpbird/chips-edittext-library
    Demo Apk: https://github.com/kpbird/chips-edittext-library/tree/master/ChipsEditTextDemo/bin

  7. AutoFitTextView
    A TextView that automatically resizes text to fit perfectly within its bounds.
    Project Address: https://github.com/grantland/android-autofittextview

  8. Shimmer for Android
    An Android TextView with a shimmering effect
    Project Address: https://github.com/RomainPiel/Shimmer-android

  9. Titanic
    Android experiment showing a sinking TextView
    Project Address: https://github.com/RomainPiel/Titanic
    Renderings: Renderings

  10. MoneyTextView
    A TextView used for inputing and adding money
    Project Address: https://github.com/andyken/MoneyTextView
    Renderings:
    Renderings

9. Others

  1. youtube-play-icon
    Material style morphing play-pause icon
    Project Address: https://github.com/alxrm/youtube-play-icon
    Renderings:
    Renderings

  2. achartengine
    AChartEngine is a charting library for Android applications. It currently supports the following chart types: line chart, area chart, scatter chart, time chart, bar chart, pie chart, bubble chart, doughnut chart, range (high-low) bar chart, dial chart / gauge, combined (any combination of line, cubic line, scatter, bar, range bar, bubble) chart, cubic line chart and so on.
    Project Address: https://code.google.com/p/achartengine/
    Official Website: http://www.achartengine.org/
    Renderings: Renderings
    http://www.achartengine.org/dimages/sales_line_and_area_chart.png
    http://www.achartengine.org/dimages/temperature_range_chart.png
    http://www.achartengine.org/dimages/combined_chart.png
    http://www.achartengine.org/dimages/budget_chart.png
    Similar App: Wordpress Android,Google Analytics

  3. GraphView
    Android Graph Library for creating zoomable and scrollable line and bar graphs.
    Project Address: https://github.com/jjoe64/GraphView
    Demo Project: https://github.com/jjoe64/GraphView-Demos
    Demo Apk: https://play.google.com/store/apps/details?id=com.sothree.umano
    Similar App: Wordpress Android,Google Analytics

  4. android-flip
    A component for flip animation on Android, which is similar to the effect in Flipboard iPhone/Android
    Project Address: https://github.com/openaphid/android-flip
    Demo Apk: https://github.com/openaphid/android-flip/blob/master/FlipView/Demo/APK/Aphid-FlipView-Demo.apk?raw=true
    Similar App: flipboard

  5. FlipImageView
    Small android lib allowing you to make a flip imageview easily, by extending FlipImageView.
    Project Address: https://github.com/castorflex/FlipImageView
    Demo Apk: https://play.google.com/store/apps/details?id=fr.castorflex.android.flipimageview

  6. SwipeBackLayout
    An Android library that help you to build app with swipe back gesture.
    Project Address: https://github.com/Issacw0ng/SwipeBackLayout
    Demo Apk: https://play.google.com/store/apps/details?id=me.imid.swipebacklayout.demo
    Similar App: Zhihu

  7. Cards-UI
    A library that allows you to easily mimic Google Play's card layout on Android.
    Project Address: https://github.com/afollestad/Cards-UI
    Demo Apk: https://github.com/Trinea/TrineaDownload/blob/master/cards-ui-demo.apk?raw=true

  8. cardslib
    Card Library provides an easy way to display a UI Card in your Android app. You can display single cards, list of cards and grid or staggered grid of Cards.
    Project Address: https://github.com/gabrielemariotti/cardslib
    Demo Apk: https://play.google.com/store/apps/details?id=it.gmariotti.cardslib.demo

  9. android-styled-dialogs
    A simple library for styling Android dialogs in the Holo theme. It also removes boilerplate code for displaying simple dialogs.
    Project Address: https://github.com/inmite/android-styled-dialogs
    Demo Apk: https://github.com/Trinea/TrineaDownload/blob/master/styled-dialogs-demo.apk?raw=true

  10. Crouton
    Context sensitive notifications for Android, like toast. include style like alert, comfirm, info and click to dismiss, allow to set time of diaplay and customed view
    Project Address: https://github.com/keyboardsurfer/Crouton
    Demo Apk: http://play.google.com/store/apps/details?id=de.keyboardsurfer.app.demo.crouton

  11. supertooltips
    SuperToolTips is an Open Source Android library that allows developers to easily create Tool Tips for views.
    Project Address: https://github.com/nhaarman/supertooltips
    Demo Apk: https://play.google.com/store/apps/details?id=com.haarman.supertooltips

  12. Android ViewBadger
    A simple way to "badge" any given Android view at runtime without having to cater for it in layout
    Project Address: https://github.com/jgilfelt/android-viewbadger
    Demo Apk: https://github.com/Trinea/TrineaDownload/blob/master/android-viewbadger.apk?raw=true
    Renderings: https://github-camo.global.ssl.fastly.net/a705a3e88c75ae2394943bd7c56f725697616ea8/687474703a2f2f7777772e6a65666667696c66656c742e636f6d2f766965776261646765722f76622d31612e706e67

  13. Android Sliding Up Panel
    This library provides a simple way to add a draggable sliding up panel (popularized by Google Music, Google Maps and Rdio) to your Android application. Umano Team <3 Open Source.
    Project Address: https://github.com/umano/AndroidSlidingUpPanel
    Demo Apk: https://play.google.com/store/apps/details?id=com.sothree.umano
    Similar App: Google Music

  14. android-times-square
    Standalone Android widget for picking a single date from a calendar view.
    Project Address: https://github.com/square/android-times-square
    Demo Apk: https://github.com/Trinea/TrineaDownload/blob/master/times-square-demo.apk?raw=true

  15. android-calendar-card
    Android calendar view (like card)
    Project Address: https://github.com/kenumir/android-calendar-card
    Demo Apk: https://play.google.com/store/apps/details?id=com.wt.calendarcardsample
    Renderings: Renderings

  16. ColorPickerView
    A simple yet beautiful color picker component for Android.
    Project Address: https://code.google.com/p/color-picker-view/
    Renderings: Renderings

  17. HoloColorPicker
    An Android Holo themed colorpicker
    Project Address: https://github.com/LarsWerkman/HoloColorPicker
    Demo Apk: https://docs.google.com/file/d/0BwclyDTlLrdXRzVnTGJvTlRfU2s/edit

  18. AndroidWheel
    Custom wheel widget for android
    Project Address: https://github.com/sephiroth74/AndroidWheel
    Renderings: Renderings

  19. TableFixHeaders
    Android library that implements a table with fixed headers.
    Project Address: https://github.com/InQBarna/TableFixHeaders
    Demo Apk: http://bit.ly/13buAIq

  20. UITableView
    Library and example project on how to use the UITableView component
    Project Address: https://github.com/thiagolocatelli/android-uitableview
    Demo Apk: https://github.com/Trinea/TrineaDownload/blob/master/ui-tableview-demo.apk?raw=true

  21. ATableView
    Create iOS-like tables (UITableView) for Android, using UIKit object model
    Project Address: https://github.com/dmacosta/ATableView
    Demo Apk: https://play.google.com/store/apps/details?id=com.nakardo.atableview.demo

  22. UndoBar
    The UI component for Android advanced UI pattern undo-bar, used in Gmail app
    Project Address: https://github.com/soarcn/UndoBar
    Renderings: Renderings

  23. Inscription
    Inscription is an open source library to display information about your Android app, like info of change or new feature
    Project Address: https://github.com/MartinvanZ/Inscription

  24. ActivityTransition
    An android project presenting some transitions you can use between activities, like fade, flip, fly into and so on
    Project Address: https://github.com/ophilbert/ActivityTransition
    Demo Apk: https://github.com/jfeinstein10/JazzyViewPager/blob/master/JazzyViewPager.apk?raw=true

  25. GlowPadBackport
    A backport of the Android 4.2 GlowPadView that works on the SDK on API levels 4+
    Project Address: https://github.com/rock3r/GlowPadBackport
    Demo Apk: https://play.google.com/store/apps/details?id=net.sebastianopoggi.samples.ui.GlowPadSample
    Renderings: Renderings

  26. GlowPadView
    GlowPadView for Android is a great library to implement Googles lockscreen and new alarmclock style.
    Project Address: https://github.com/nadavfima/GlowPadView
    Renderings: https://raw.github.com/nadavfima/GlowPadView/master/example.png

  27. android-lockpattern
    Lockpattern activity for Android
    Project Address: https://code.google.com/p/android-lockpattern/
    Demo Apk: https://play.google.com/store/apps/details?id=group.pals.android.lib.ui.lockpattern.demo
    Document: https://code.google.com/p/android-lockpattern/wiki/QuickUse

  28. PatternLock
    Yet another pattern lock library for Android
    Project Address:https://github.com/DreaminginCodeZH/PatternLock
    Demo Apk:https://github.com/DreaminginCodeZH/PatternLock/raw/master/dist/sample.apk
    Renderings:Renderings

  29. RangeBar
    Android widget for selecting a range of values. It provides for the selection of a range of values rather than a single value.
    Project Address: https://github.com/edmodo/range-bar
    Demo Apk: https://github.com/Trinea/TrineaDownload/blob/master/range-bar-demo.apk?raw=true
    Renderings: Renderings

  30. SuperToasts
    The SuperToasts library enhances and builds upon the Android Toast class. Some of the features of this library include context sensitive toasts (SuperActivityToasts), toasts with buttons and icons, non context sensitive toasts (SuperToasts), and a new style of toasts (SuperCardToasts) with many customization options for each.
    Project Address: https://github.com/JohnPersano/SuperToasts
    Demo Apk: https://play.google.com/store/apps/details?id=com.supertoastsdemo
    Renderings: SuperButtonToast

  31. GoogleDateTimePickers
    New Google Date and time pickers
    Project Address: https://github.com/Mirkoddd/GoogleDateTimePickers
    Document: https://play.google.com/store/apps/details?id=com.mirko.sample&hl=it

  32. UndoBar
    An implementation of Android's Undo Bar as seen in Google's Gmail app.
    Project Address: https://github.com/jenzz/Android-UndoBar
    Renderings: Renderings

  33. ColorPickerPreference
    ColorPickerPreference for android to create color picker in preferences.
    Project Address: https://github.com/attenzione/android-ColorPickerPreference
    Renderings: Renderings

  34. HoloGraphLibrary
    This is a library written to allow beautiful graphs and charts to be easily incorporated into your Android application.
    Project Address: https://bitbucket.org/danielnadeau/holographlibrary/src
    Document: https://bitbucket.org/danielnadeau/holographlibrary/wiki/Home

  35. ChromeView
    Android WebView implementation that uses the latest Chromium code
    Project Address: https://github.com/pwnall/chromeview

  36. Discrollview
    DiscrollView support Item fading in or out, translate or scale
    Project Address: https://github.com/flavienlaurent/discrollview
    Demo Apk: https://github.com/flavienlaurent/discrollview/raw/master/sample.apk

  37. Android Slider Preference Library
    Android library that allows applications to add dialog-based slider widgets to their settings
    Project Address: https://github.com/jayschwa/AndroidSliderPreference

  38. ShowcaseView library
    Highlight the best bits of your app to users quickly
    Project Address: https://github.com/amlcurran/ShowcaseView

  39. android-segmented-control
    ios7 UISegmentedControl for android
    Project Address: https://github.com/hoang8f/android-segmented-control

  40. PullScrollView
    Pull and background rebound effect
    Project Address: https://github.com/MarkMjw/PullScrollView
    Renderings: Renderings

  41. ArcLayout
    A very simple arc layout library
    Project Address: https://github.com/ogaclejapan/ArcLayout
    Demo Apk: https://play.google.com/store/apps/details?id=com.ogaclejapan.arclayout.demo
    Renderings: Renderings

  42. FinestWebView
    Beautiful and customizable Android Activity that shows web pages within an app.
    Project Address: https://github.com/TheFinestArtist/FinestWebView-Android
    Sample App: https://play.google.com/store/apps/details?id=com.thefinestartist.finestwebview.sample
    Renderings: Renderings

  43. YouTubePlayerActivity
    Simply pass a url to play youtube video in new activity. It supports screen orientation, media volume control and etc.
    Project Address: https://github.com/TheFinestArtist/YouTubePlayerActivity
    Sample App: https://play.google.com/store/apps/details?id=com.thefinestartist.ytpa.sample
    Renderings: Renderings

  44. TristateToggleButton Customizable tri-state toggle button (with three states, three state toggle) for Android Project Address: https://github.com/BeppiMenozzi/TriStateToggleButton

  45. Knob Fully customizable rotating knob selector with discrete values for Android. Replaces radio buttons, integer value inputs and ViewPager indicators. Project Address: https://github.com/BeppiMenozzi/Knob

  46. Spotlight
    Android Library that lights items for tutorials or walk-throughs etc... Project Address: https://github.com/TakuSemba/Spotlight
    Renderings:
    Renderings

  47. SpeedView
    Dynamic Speedometer and Gauge for Android. amazing, powerful, and multi shape :zap: Project Address: https://github.com/anastr/SpeedView
    Renderings:
    Renderings

2. Common Util Libs

Include Dependency Injection, ImageCache, Network, Database ORM, Android common lib, Compatible low version, Multimedia, Event Bus, Sensor, Security, Plug-in, File, Others

1. Dependency Injection

Speeds up Android development by dependency injection

  1. AndroidAnnotations(Code Diet)
    AndroidAnnotations is an Open Source framework that speeds up Android development. It takes care of the plumbing, and lets you concentrate on what's really important.
    Project Address: https://github.com/excilys/androidannotations
    Document: https://github.com/excilys/androidannotations/wiki
    Official Website: http://androidannotations.org/

  2. roboguice
    RoboGuice 2 takes the guesswork out of development. Inject your View, Resource, System Service, or any other object, and let RoboGuice 2 take care of the details.
    Project Address: https://github.com/roboguice/roboguice
    Document: https://github.com/roboguice/roboguice/wiki

  3. butterknife
    View "injection" library for Android.
    Project Address: https://github.com/JakeWharton/butterknife
    Document: http://jakewharton.github.io/butterknife/

  4. Dagger
    A fast dependency injector for Android and Java.
    Project Address: https://github.com/square/dagger
    Document: http://square.github.io/dagger/

  5. Anvil A small library for building reactive UI components, data binding and event listener injection. Inspired by React.
    Project Address: https://github.com/zserge/anvil
    Document: http://anvil.site/

2. Image Cache

  1. Android-Universal-Image-Loader
    Powerful and flexible library for loading, caching and displaying images on Android.
    Project Address: https://github.com/nostra13/Android-Universal-Image-Loader
    Demo Apk: https://github.com/Trinea/TrineaDownload/blob/master/universal-imageloader-demo.apk?raw=true
    Document: http://www.intexsoft.com/blog/item/74-universal-image-loader-part-3.html

  2. picasso
    A powerful image downloading and caching library for Android
    Project Address: https://github.com/square/picasso
    Document: http://square.github.io/picasso/

  3. ImageCache
    Image Cache, support multi caching algorithms
    Project Address: https://github.com/Trinea/AndroidCommon
    Demo Apk: https://play.google.com/store/apps/details?id=cn.trinea.android.demo
    Document: http://www.trinea.cn/android/android-imagecache/

  4. Cube ImageLoader
    Easy to use, high performance, used in some of the Apps in Alibaba Group. Project Address:https://github.com/etao-open-source/cube-sdk
    Demo Apk:https://github.com/liaohuqiu/cube-sdk/raw/master/cube-sdk-sample.apk
    Document:http://cube-sdk.liaohuqiu.net/
    Renderings: Screen Shot

3. Network

  1. Retrofit
    Type-safe REST client for Android and Java by Square
    Project Address: https://github.com/square/retrofit
    Document: http://square.github.io/retrofit/

  2. okhttp
    An HTTP+SPDY client for Android and Java applications.
    Project Address: https://github.com/square/okhttp
    Document: http://square.github.io/okhttp/

  3. Asynchronous Http Client for Android
    An asynchronous, callback-based Http client for Android built on top of Apache's HttpClient libraries.
    Project Address: https://github.com/loopj/android-async-http
    Document: http://loopj.com/android-async-http/

  4. android-query
    Android-Query (AQuery) is a light-weight library for doing asynchronous tasks and manipulating UI elements in Android.
    Project Address: https://code.google.com/p/android-query/
    Document: https://code.google.com/p/android-query/#Why_AQuery?
    Demo Apk: https://play.google.com/store/apps/details?id=com.androidquery

  5. Async Http Client
    Asynchronous Http and WebSocket Client library for Java
    Project Address: https://github.com/AsyncHttpClient/async-http-client
    Document: http://sonatype.github.io/async-http-client/

  6. Ion
    Android Asynchronous Networking and Image Loading
    Project Address: https://github.com/koush/ion
    Document: https://github.com/koush/ion#more-examples

  7. Android Networking
    Android Networking is a powerful library for doing any type of networking in Android Applications Project Address: https://github.com/amitshekhariitbhu/AndroidNetworking
    Document: http://amitshekhariitbhu.github.io/AndroidNetworking/

  8. Http Request
    A simple convenience library for using a HttpURLConnection to make requests and access the response.
    Project Address: https://github.com/kevinsawicki/http-request
    Document: https://github.com/kevinsawicki/http-request#examples

  9. RoboSpice
    RoboSpice is a modular android library that makes writing asynchronous network requests easy
    Project Address: https://github.com/stephanenicolas/robospice
    Demo Apk: https://github.com/stephanenicolas/RoboDemo/downloads

4. Database

  1. greenDAO
    GreenDAO is a light & fast ORM solution for Android that maps objects to SQLite databases. Being highly optimized for Android, greenDAO offers great performance and consumes minimal memory.
    Project Address: https://github.com/greenrobot/greenDAO
    Document: http://greendao-orm.com/documentation/
    Official Website: http://greendao-orm.com/

  2. ActiveAndroid
    Active record style SQLite persistence for Android
    Project Address: https://github.com/pardom/ActiveAndroid
    Document: https://github.com/pardom/ActiveAndroid/wiki/_pages

  3. Sprinkles
    Sprinkles is a boiler-plate-reduction-library for dealing with databases in android applications
    Project Address: https://github.com/emilsjolander/sprinkles
    Document: http://emilsjolander.github.io/blog/2013/12/18/android-with-sprinkles/

  4. ormlite-android
    ORMLite Android functionality used in conjunction with ormlite-core
    Project Address: https://github.com/j256/ormlite-android
    Document: http://ormlite.com/sqlite_java_android_orm.shtml

5. Android common lib

  1. Guava
    The Guava project contains several of Google's core libraries that we rely on in our Java-based projects: collections, caching, primitives support, concurrency libraries, common annotations, string processing, I/O, and so forth.
    Project Address: https://code.google.com/p/guava-libraries/
    Document: https://code.google.com/p/guava-libraries/wiki/GuavaExplained

  2. Volley
    Easy, Fast Networking for Android
    Project Address: https://android.googlesource.com/platform/frameworks/volley
    Github Address: https://github.com/mcxiaoke/android-volley
    Document: http://commondatastorage.googleapis.com/io-2013/presentations/110%20-%20Volley-%20Easy,%20Fast%20Networking%20for%20Android.pdf

  3. AndroidCommon
    Android common lib, include ImageCache, HttpCache, DropDownListView, DownloadManager, Utils and so on
    Project Address: https://github.com/Trinea/AndroidCommon
    Demo Apk: https://play.google.com/store/apps/details?id=cn.trinea.android.demo
    Document: http://www.trinea.cn/android/android-common-lib/

  4. shipfaster
    Sample project demonstrating usage of Dagger + Otto + Robolectric + Retrofit + Picasso + OkHttp
    Project Address: https://github.com/pyricau/shipfaster

  5. CleanAndroidCode
    This project is a proof of concept to show how to integrate Dagger, Otto and AndroidAnnotations.
    Project Address: https://github.com/pyricau/CleanAndroidCode

6. Android Compatible low version

  1. ActionBarSherlock
    Action bar implementation which uses the native action bar on Android 4.0+ and a custom implementation on pre-4.0 through a single API and theme.
    Project Address: https://github.com/JakeWharton/ActionBarSherlock
    Demo Apk: https://play.google.com/store/apps/details?id=com.actionbarsherlock.sample.demos

  2. Nine Old Androids
    Android library for using the Honeycomb animation API on all versions of the platform back to 1.0!
    Project Address: https://github.com/JakeWharton/NineOldAndroids
    Demo Apk: https://play.google.com/store/apps/details?id=com.jakewharton.nineoldandroids.sample
    Document: http://nineoldandroids.com/

  3. HoloEverywhere
    Bringing Holo Theme from Android 4.1 to 2.1 and above.
    Project Address: https://github.com/Prototik/HoloEverywhere
    Demo Apk: https://raw.github.com/Prototik/HoloEverywhere/repo/org/holoeverywhere/demo/2.1.0/demo-2.1.0.apk
    Document: http://android-developers.blogspot.com/2012/01/holo-everywhere.html

  4. SherlockNavigationDrawer
    Modification of the Android NavigationDrawer sample to use ActionbarSherlock so that we can use the NavigationDrawer on older devices
    Project Address: https://github.com/tobykurien/SherlockNavigationDrawer

  5. Notifications4EveryWhere
    Bringing Notifications from Android 4.1 to 2.2 and above.
    Project Address: https://github.com/youxiachai/Notifications4EveryWhere
    NavigationDrawerDocument: http://developer.android.com/training/implementing-navigation/nav-drawer.html

  6. Android Switch Widget Backport
    A backport of the Switch widget that was introduced on Android 4.X to Android2.1++
    Project Address: https://github.com/BoD/android-switch-backport
    Demo Apk: https://play.google.com/store/apps/details?id=org.jraf.android.backport.switchwidget.sample
    Document: https://github.com/BoD/android-switch-backport#using-the-switch

  7. android-datepicker
    Android 4.0 DatePicker backported to 2.2
    Project Address: https://github.com/SimonVT/android-datepicker

7. Multimedia

  1. cocos2d-x
    cocos2d-x is a multi-platform framework for building 2d games, interactive books, demos and other graphical applications. It is based on cocos2d-iphone, but instead of using Objective-C, it uses C++. It works on iOS, Android, Windows Phone, OS X, Windows and Linux.
    Project Address: https://github.com/cocos2d/cocos2d-x
    Document: http://www.cocos2d-x.org/wiki
    Official Website: http://www.cocos2d-x.org/

  2. Vitamio
    Vitamio is an open multimedia framework for Android and iOS, with full and real hardware accelerated decoder and renderer.
    Project Address: https://github.com/yixia/VitamioBundle
    Document: http://www.vitamio.org/docs/

  3. PhotoProcessing
    A demo of how you can process photos leveraging the ndk, support Instafix, Ansel, Testino, XPro, Retro, BW, Sepia, Cyano, Georgia, Sahara, HDR, Rotate, Flip and so on
    Project Address: https://github.com/lightbox/PhotoProcessing
    Demo Apk: https://github.com/Trinea/TrineaDownload/blob/master/photo-processing.apk?raw=true

  4. Android StackBlur
    Android StackBlur is a library that can perform a blurry effect on a Bitmap based on a gradient or radius, and return the result.
    Project Address: https://github.com/kikoso/android-stackblur
    Demo Apk: https://github.com/kikoso/android-stackblur/blob/master/StackBlurDemo/bin/StackBlurDemo.apk?raw=true
    Document: https://github.com/kikoso/android-stackblur#usage

  5. Bitmap Smart Clipping using OpenCV
    Bitmap Smart Clipping using OpenCV
    Project Address: https://github.com/beartung/tclip-android

  6. Cropper
    Android widget for cropping and rotating an image.
    Project Address: https://github.com/edmodo/cropper
    Document: https://github.com/edmodo/cropper/wiki
    Renderings: Renderings

  7. android-crop
    Android library project for cropping images
    Project Address: https://github.com/jdamcd/android-crop
    Renderings: Renderings

  8. TileView
    The TileView widget is a subclass of ViewGroup that provides a mechanism to asynchronously display tile-based images, with additional functionality for 2D dragging, flinging, pinch or double-tap to zoom, adding overlaying Views (markers), built-in Hot Spot support, dynamic path drawing, multiple levels of detail, and support for any relative positioning or coordinate system.
    Project Address: https://github.com/moagrius/TileView
    Demo Apk: http://moagrius.github.io/TileView/TileViewDemo.apk

  9. BlurEffectForAndroidDesign
    Sample to show how to implement blur graphical tricks
    Project Address: https://github.com/PomepuyN/BlurEffectForAndroidDesign

  10. android-eye
    Change your android phone to surveillance camera
    Project Address: https://github.com/Teaonly/android-eye
    Demo Apk: https://play.google.com/store/apps/details?id=teaonly.droideye

  11. libpng for Android
    libpng for Android NDK
    Project Address: https://github.com/julienr/libpng-android
    Document: http://www.libpng.org/pub/png/libpng.html

  12. Image File Selector
    Project Address: https://github.com/sw926/ImageFileSelector

8. Event Bus

A typical use case for Android apps is gluing Activities, Fragments, and background threads together. Conventional wiring of those elements often introduces complex and error-prone dependencies and life cycle issues.

  1. EventBus
    Android optimized event bus that simplifies communication between Activities, Fragments, Threads, Services, etc. Less code, better quality.
    Project Address: https://github.com/greenrobot/EventBus
    Document: https://github.com/greenrobot/EventBus#general-usage-and-api

  2. Otto
    An enhanced Guava-based event bus with emphasis on Android support.
    Project Address: https://github.com/square/otto
    Document: http://square.github.io/otto/
    Demo Apk: https://play.google.com/store/apps/details?id=de.greenrobot.eventperf

9. Sensor

  1. Great Android Sensing Toolkit
    GAST is a toolkit for using Android's Sensing capabilities. It contains the examples, boiler plate code, and algorithms you need to properly use Android sensors.
    Project Address: https://github.com/gast-lib/gast-lib
    Demo Apk: https://play.google.com/store/apps/details?id=root.gast.playground
    Document: https://github.com/gast-lib/gast-lib#documentation

  2. SensorManager
    Android Sensor Manager Library
    Project Address: https://github.com/nlathia/SensorManager
    Document: https://docs.google.com/document/d/1TqThJULb-4e6TGb1gdkAaPCfyuXStjJpbnt7a0OZ9OE/edit

  3. GPSLogger
    GPSLogger is an Android app that logs GPS information to GPX, KML or text files and has options for annotating and sharing.
    Project Address: https://github.com/mendhak/gpslogger
    Demo Apk: https://play.google.com/store/apps/details?id=com.mendhak.gpslogger
    Document: http://code.mendhak.com/gpslogger/

  4. Pedometer
    Lightweight pedometer app for Android using the hardware step sensor
    Project Address: https://github.com/j4velin/Pedometer

  5. leapcast
    ChromeCast emulation app for any device
    Project Address: https://github.com/dz0ny/leapcast

  6. Arduino-Communicator
    Very simple Android application for communicating with Arduino
    Project Address: https://github.com/jeppsson/Arduino-Communicator

  7. android-pedometer
    App for Android phones that counts your steps.
    Project Address: https://github.com/bagilevi/android-pedometer
    Demo Apk: http://pedometer.googlecode.com/files/Pedometer-1.4.apk

  8. OwnTracks for Android
    OwnTracks Android App
    Project Address: https://github.com/owntracks/android

  9. Shake Detector library for Android
    This library provides a easy way to detect a shake movement using the build-in accelerometer and fire a callback on the UI thread every times it happens.
    Project Address: https://github.com/tbouron/ShakeDetector
    Demo Apk: https://play.google.com/store/apps/details?id=com.github.tbouron.shakedetector.example

  10. Android heart rate monitor
    Android heart rate monitor
    Project Address: https://github.com/phishman3579/android-heart-rate-monitor

  11. Bluetooth LE Library for Android
    This library allows for easy access to a Bluetooth LE device's AdRecord and RSSI value. It offers additional functionality for iBeacons.
    Project Address: https://github.com/alt236/Bluetooth-LE-Library---Android
    Demo Apk: https://play.google.com/store/apps/details?id=uk.co.alt236.btlescan

  12. Sensey
    Android library which makes detecting gestures a breeze.
    Project Address: https://github.com/nisrulz/sensey

10. Security

  1. SQLCipher
    SQLCipher is an SQLite extension that provides 256 bit AES encryption of database files.
    Project Address: https://github.com/sqlcipher/sqlcipher
    Document: http://sqlcipher.net/sqlcipher-for-android/

  2. Conceal
    Conceal provides easy Android APIs for performing fast encryption and authentication of data, such as that stored on SD cards
    Project Address: https://github.com/facebook/conceal
    Document: https://github.com/facebook/conceal#usage

  3. Android-PasscodeLock
    Android Library that provides passcode lock to your app
    Project Address: https://github.com/wordpress-mobile/Android-PasscodeLock
    Demo Apk: https://play.google.com/store/apps/details?id=com.sothree.umano
    Similar App: Wordpress Android, Alipay

  4. GlowPadBackport
    A backport of the Android 4.2 GlowPadView that works on the SDK on API levels 4+
    Project Address: https://github.com/rock3r/GlowPadBackport
    Demo Apk: https://play.google.com/store/apps/details?id=net.sebastianopoggi.samples.ui.GlowPadSample
    Renderings: Renderings

  5. GlowPadView
    GlowPadView for Android is a great library to implement Google's lockscreen and new alarmclock style. (Taken from Android's Source Code)
    Project Address: https://github.com/nadavfima/GlowPadView
    Renderings: https://raw.github.com/nadavfima/GlowPadView/master/example.png

  6. android-lockpattern
    lockpattern activity for Android
    Project Address: https://code.google.com/p/android-lockpattern/
    Demo Apk: https://play.google.com/store/apps/details?id=group.pals.android.lib.ui.lockpattern.demo
    Document: https://code.google.com/p/android-lockpattern/wiki/QuickUse

11. Maps

  1. GraphHopper Fast routing library and server using OpenStreetMap
    Project Address: https://github.com/graphhopper/graphhopper/
    Document: https://github.com/graphhopper/graphhopper/blob/master/docs/index.md#developers
    Example APK address: https://graphhopper.com/#community
    Official Website: https://graphhopper.com
    Similar App: https://github.com/graphhopper/graphhopper/blob/master/docs/android/index.md#cruiser-app
    Online Demo: https://graphhopper.com/maps

  2. Mapsforge Software for maps rendering based on OpenStreetMap
    Project Address: https://github.com/mapsforge/mapsforge/
    Document: https://github.com/mapsforge/mapsforge/blob/master/docs/Getting-Started-Developers.md
    Example APK address: https://graphhopper.com/#community
    Renderings: Renderings

12. Others

  1. Salvage view
    Generic view recycler and ViewPager PagerAdapter implementation.
    Project Address: https://github.com/JakeWharton/salvage

  2. Android Priority Job Queue
    A Job Queue specifically written for Android to easily schedule jobs (tasks) that run in the background, improving UX and application stability.
    Project Address: https://github.com/path/android-priority-jobqueue
    Document: https://github.com/path/android-priority-jobqueue#getting-started

  3. Glide Bitmap Pool
    Glide Bitmap Pool is a memory management library for reusing the bitmap memory Project Address: https://github.com/amitshekhariitbhu/GlideBitmapPool Document: https://amitshekhariitbhu.github.io/GlideBitmapPool/

  4. jsoup
    Java HTML Parser, with best of DOM, CSS, and jquery
    Project Address: https://github.com/jhy/jsoup
    Official Website: http://jsoup.org/

  5. ZIP
    ZeroTurnaround ZIP Library
    Project Address: https://github.com/zeroturnaround/zt-zip
    Document: https://github.com/zeroturnaround/zt-zip#examples

  6. Cobub Razor
    Cobub Razor - Open Source Mobile Analytics Solution, include web, android,ios, window phone
    Project Address: https://github.com/cobub/razor
    Demo Apk: http://demo.cobub.com/razor
    Document: http://dev.cobub.com/

  7. aFileChooser
    Android library that provides a file explorer to let users select files on external storage.
    Project Address: https://github.com/iPaulPro/aFileChooser

  8. androidpn
    An open source project to provide push notification support for Android -- a xmpp based notification server and a client tool kit.
    Project Address: https://github.com/dannytiehui/androidpn

  9. purePDF
    A complete actionscript PDF library
    Project Address: https://github.com/sephiroth74/purePDF

  10. Bolts
    Bolts is a collection of low-level libraries designed to make developing mobile apps easier.
    Project Address: https://github.com/BoltsFramework/Bolts-Android/

  11. CastCompanionLibrary-android
    CastCompanionLibrary-android is a library project to enable developers integrate Cast capabilities into their applications faster and easier.
    Project Address: https://github.com/googlecast/CastCompanionLibrary-android
    Document: https://developers.google.com/cast/

  12. CastVideos-android
    CastVideos-android application shows how to cast videos from an android device in a way that is fully compliant with the Design Checklist.
    Project Address: https://github.com/googlecast/CastVideos-android
    Document: https://developers.google.com/cast/

  13. Uninstall_Statics
    Android Statistical application is uninstalled
    Project Address: https://github.com/sevenler/Uninstall_Statics
    Document: http://www.cnblogs.com/zealotrouge/p/3157126.html

  14. xCombine
    Android Plugin Framework
    Project Address: https://github.com/wyouflf/xCombine
    Document: http://my.oschina.net/u/1171837/blog/155377

  15. Memento
    Memento is an annotation processor for Android that gives your activities a memory. It introduces the @Retain annotation, which allows you to retain arbitrary fields of an activity across configuration changes in a simple and type-safe manner.
    Project Address: https://github.com/mttkay/memento
    Document: https://github.com/mttkay/memento#usage

  16. svg-android
    SVG parsing and rendering for Android
    Project Address: https://code.google.com/p/svg-android/

  17. Office 365 SDK for Android Preview
    Office 365 SDK for Android Preview by Microsoft Open Technologies, Inc. support Microsoft SharePoint Lists, Microsoft SharePoint Files, Microsoft Exchange Calendar, Microsoft Exchange Contacts, Microsoft Exchange Mail
    Project Address: https://github.com/OfficeDev/Office-365-SDK-for-Android

  18. OpenSpritz-Android
    OpenSpritz concept for Android, is a Spritz-like .epub and website reader for Android 3.0+
    Project Address: https://github.com/OnlyInAmerica/OpenSpritz-Android

  19. FreeFlow
    A layout engine for Android that decouples layouts from the View containers that manage scrolling and view recycling. FreeFlow makes it really easy to create custom layouts and beautiful transition animations as data and layouts change
    Project Address: https://github.com/Comcast/FreeFlow
    Demo Apk: https://github.com/Comcast/FreeFlow/releases

  20. Android Gesture Detectors Framework
    Gesture detector framework for multitouch handling on Android
    Project Address: https://github.com/Almeros/android-gesture-detectors

  21. CacheUtilsLibrary
    This is a simple Android utils library to write any type of data into cache files and then read them later, using Gson to serialize and deserialize these data.
    Project Address: https://github.com/westlinkin/CacheUtilsLibrary

  22. EasyDeviceInfo
    Android library to get device information in a super easy way.
    Project Address: https://github.com/nisrulz/easydeviceinfo

3. Excellent projects

Linux
Project Address: https://github.com/torvalds/linux
Android
Project Address: https://android.googlesource.com/

(1) ZXing
ZXing ("zebra crossing") is an open-source, multi-format 1D/2D barcode image processing library implemented in Java, with ports to other languages.
Project Address: https://github.com/zxing/zxing
Demo Apk: https://play.google.com/store/apps/details?id=com.google.zxing.client.android

(2) photup
With photup you can share your photos to your Facebook profile, quicker than ever before.
Project Address: https://github.com/chrisbanes/photup
Demo Apk: https://play.google.com/store/apps/details?id=uk.co.senab.photup

(3) github-android GitHub Android App
Project Address: https://github.com/github/android
Demo Apk: https://play.google.com/store/apps/details?id=com.github.mobile

(4) Notes
MIUI Notes Project Address: https://github.com/MiCode/Notes
Demo Apk: https://github.com/Trinea/TrineaDownload/blob/master/miui-note-demo.apk?raw=true

(5) weicuiyuan
Sina Weibo Android Client
Project Address: https://github.com/qii/weiciyuan
Demo Apk: https://play.google.com/store/apps/details?id=org.qii.weiciyuan

(6) gnucash-android
Gnucash for Android mobile companion application.
Project Address: https://github.com/codinguser/gnucash-android
Demo Apk: http://play.google.com/store/apps/details?id=org.gnucash.android

(7) AntennaPod
A podcast manager for Android
Project Address: https://github.com/danieloeh/AntennaPod
Demo Apk: https://play.google.com/store/apps/details?id=de.danoeh.antennapod

(8) ChaseWhisplyProject
An augmented reality attempt
Project Address: https://github.com/tvbarthel/ChaseWhisplyProject
Demo Apk: https://play.google.com/store/apps/details?id=fr.tvbarthel.games.chasewhisply

(9) Tweet Lanes
Tweet Lanes for Android
Project Address: https://github.com/chrislacy/TweetLanes
Demo Apk: https://play.google.com/store/apps/details?id=com.tweetlanes.android

(10) Financius
Android Expense Manager
Project Address: https://github.com/mvarnagiris/Financius
Demo Apk: https://play.google.com/store/apps/details?id=com.code44.finance

(11) todo.txt-android
Official Todo.txt Android app for managing your todo.txt file stored in Dropbox.
Project Address: https://github.com/ginatrapani/todo.txt-android
Demo Apk: https://play.google.com/store/apps/details?id=com.todotxt.todotxttouch

(13) Muzei Live Wallpaper
Muzei Live Wallpaper for Android
Project Address: https://github.com/romannurik/muzei
Demo Apk: https://play.google.com/store/apps/details?id=net.nurik.roman.muzei

(14) Etar Calendar
Etar is an OpenSource material designed calendar
Project Address: https://github.com/xsoh/Etar-Calendar
Demo Apk: https://play.google.com/store/apps/details?id=ws.xsoh.etar
Renderings: Etar Calendar

4: Development and testing tools

Android open source projects about development tools and testing tools.

1. Development productivity tools

  1. Json2Java
    Automate processing Java classes to mirror json models.
    Project Address: https://github.com/jonfhancock/JsonToJava
    Online Demo: http://jsontojava.appspot.com/

  2. IntelliJ Plugin for Android Parcelable boilerplate code generation
    IntelliJ Plugin for Android Parcelable boilerplate code generation.
    Project Address: https://github.com/mcharmas/android-parcelable-intellij-plugin
    Renderings: Holo Colors Idea

  3. Android Holo Colors IntelliJ Plugin
    IntelliJ / Android Studio plugin for Android Holo Colors
    Project Address: https://github.com/jeromevdl/android-holo-colors-idea-plugin
    Renderings: Holo Colors Idea

  4. Android Drawable Factory
    A Java Application to create appropriate Drawable resources for your Android application
    Project Address: https://github.com/tizionario/AndroidDrawableFactory
    Renderings: Android Drawable Factory

  5. SelectorChapek for Android
    Android Studio plugin which automatically generates drawable selectors from appropriately named resources.
    Project Address: https://github.com/inmite/android-selector-chapek

  6. Android Action Bar Style Generator
    Easily create a simple, attractive and seamless custom action bar style for your Android application
    Project Address: https://github.com/jgilfelt/android-actionbarstylegenerator
    Online Demo: http://jgilfelt.github.io/android-actionbarstylegenerator/

  7. ButterKnifeZelezny
    Android Studio plug-in for generating ButterKnife injections from selected layout XML.
    Project Address: https://github.com/inmite/android-butterknife-zelezny

  8. RoboCoP
    Pure Java code generation tool for generating a fully functional ContentProvider for Android.
    Project Address: https://github.com/mediarain/RoboCoP

  9. appiconsizes
    IOS and Android App Icon size generator
    Project Address: http://www.appiconsizes.com/

  10. Gradle Retrolambda Plugin
    This plugin will automatically build your java or android project with Retrolambda, giving you lambda goodness on java 6 or 7. It relies on the wonderful retrolambda by Esko Luontola.
    Project Address: https://github.com/evant/gradle-retrolambda

  11. jsonschema2pojo
    Generates Java types from JSON Schema (or example JSON) and annotates those types for data-binding with Jackson 1.x or 2.x, Gson.
    Project Address: https://github.com/joelittlejohn/jsonschema2pojo
    Online Demo: http://www.jsonschema2pojo.org/

  1. Quality Tools for Android
    This is an Android sample app + tests that will be used to work on various project to increase the quality of the Android platform.
    Project Address: https://github.com/stephanenicolas/Quality-Tools-for-Android

  2. android-test-kit
    Google's Testing Tools For Android
    Project Address: https://code.google.com/p/android-test-kit/
    Document: https://code.google.com/p/android-test-kit/w/list

  3. robolectric
    Robolectric is a unit test framework that de-fangs the Android SDK so you can test-drive the development of your Android app.
    Project Address: https://github.com/robolectric/robolectric
    Demo Apk: https://github.com/robolectric/robolectricsample
    Document: http://robolectric.org/

  4. Android FEST
    A set of FEST assertion helpers geared toward testing Android.
    Project Address: https://github.com/square/fest-android

  5. BoundBox
    BoundBox provides an easy way to test an object by accessing all its fields, constructor and methods, public or not. BoundBox breaks encapsulation.
    Project Address: https://github.com/stephanenicolas/boundbox

  6. Hugo
    Annotation-triggered method call logging for your debug builds.
    Project Address: https://github.com/JakeWharton/hugo

  7. scalpel
    A surgical debugging tool to uncover the layers under your app.
    Project Address: https://github.com/JakeWharton/scalpel

  8. Android Screenshot library
    On-demand screenshots for your Android integration tests
    Project Address: https://github.com/rtyley/android-screenshot-lib

  9. sonar-android-lint-plugin
    Extension plugin for Android Lint in Sonar
    Project Address: https://github.com/SonarCommunity/sonar-android
    Document: http://docs.codehaus.org/display/SONAR/Android+Plugin

3. Testing tools

  1. Spoon
    Distributing instrumentation tests to all your Androids.
    Project Address: https://github.com/square/spoon

4. Development and build environment

  1. Buck
    Buck is an Android build tool, is more powerful than ant.
    Project Address: https://github.com/facebook/buck

  2. Android Maven Plugin
    A plugin for Android application development with Apache Maven 3.1.1+ and the Android SDK.
    Project Address: https://github.com/jayway/maven-android-plugin

  3. umeng-muti-channel-build-tool
    Umeng packaing tools
    Project Address: https://github.com/umeng/umeng-muti-channel-build-tool

  4. Genymotion
    THE FASTER ANDROID EMULATOR
    Project Address: http://www.genymotion.com/

  5. gradle-mvn-push
    Helper to upload Gradle Android Artifacts to Maven repositories
    Project Address: https://github.com/chrisbanes/gradle-mvn-push
    Document: https://github.com/chrisbanes/gradle-mvn-push#usage

  6. Android Emulator Plugin for Jenkins
    Android Emulator plugin for Jenkins
    Project Address: https://github.com/jenkinsci/android-emulator-plugin

  7. Android Maven Plugin
    A tool to install components of the Android SDK to use with the Maven Android Plugin.
    Project Address: https://github.com/mosabua/maven-android-sdk-deployer

  8. SDK Manager Plugin
    Gradle plugin which downloads and manages your Android SDK.
    Project Address: https://github.com/JakeWharton/sdk-manager-plugin

5. Others

  1. ViewServer
    Local server for Android's HierarchyViewer
    Project Address: https://github.com/romainguy/ViewServer

  2. GridWichterle for Android
    This app will show grid overlay over whole system which helps you to verify your excellent app design.
    Project Address: https://github.com/inmite/android-grid-wichterle
    Demo Apk: https://play.google.com/store/apps/details?id=eu.inmite.android.gridwichterle

  3. Catlog
    Logcat-reading app for Android
    Project Address: https://github.com/nolanlawson/Catlog
    Online Demo: https://play.google.com/store/apps/details?id=com.nolanlawson.logcat

  4. PID Cat
    Colored logcat script which only shows log entries for a specific application package.
    Project Address: https://github.com/JakeWharton/pidcat

  5. ACRA
    ACRA is a library enabling Android Application to automatically post their crash reports to a GoogleDoc form. It is targetted to android applications developers to help them get data from their applications when they crash or behave erroneously.
    Project Address: https://github.com/ACRA/acra
    Document: https://github.com/ACRA/acra/wiki/BasicSetup

  6. Android Resource Navigator
    Chrome Extension providing enhanced resource navigation for GitHub hosted Android projects
    Project Address: https://github.com/jgilfelt/android-resource-navigator
    Online Demo: https://chrome.google.com/webstore/detail/android-resource-navigato/agoomkionjjbejegcejiefodgbckeebo?hl=en&gl=GB

4. Outstanding individuals and groups

1. Individual

  1. JakeWharton
    Github Address: https://github.com/JakeWharton
    Masterpiece: ActionBarSherlock,Android-ViewPagerIndicator,Nine Old Androids,SwipeToDismissNOA,hugo,butterknife,Android-DirectionalViewPager, scalpel
    HomePage: http://jakewharton.com/

  2. Chris Banes
    Github Address: https://github.com/chrisbanes
    Masterpiece: ActionBar-PullToRefresh,PhotoView,Android-BitmapCache,Android-PullToRefresh
    HomePage: http://chris.banes.me/

  3. Koushik Dutta
    Github Address: https://github.com/koush
    Masterpiece: Superuser,AndroidAsync,UrlImageViewHelper,ion
    HomePage: http://koush.com/

  4. Simon Vig
    Github Address: https://github.com/SimonVT
    Masterpiece: android-menudrawer,MessageBar
    HomePage: http://simonvt.net/

  5. Manuel Peinado
    Github Address: https://github.com/ManuelPeinado
    Masterpiece: FadingActionBar,GlassActionBar,RefreshActionItem,QuickReturnHeader

  6. Emil Sj?lander
    Github Address: https://github.com/emilsjolander
    Masterpiece: StickyListHeaders,sprinkles,android-FlipView
    HomePage: http://emilsjolander.se/

  7. greenrobot
    Github Address: https://github.com/greenrobot
    Masterpiece: greenDAO,EventBus
    HomePage: http://greenrobot.de/

  8. Jeff Gilfelt
    Github Address: https://github.com/jgilfelt
    Masterpiece: android-mapviewballoons,android-viewbadger,android-actionbarstylegenerator,android-sqlite-asset-helper
    HomePage: http://jeffgilfelt.com

  9. Romain Guy
    Github Address: https://github.com/romainguy
    Masterpiece: ViewServer
    HomePage: http://www.curious-creature.org/category/android/
    Other:http://www.flickr.com/photos/romainguy

  10. sephiroth74
    Github Address: https://github.com/sephiroth74
    Masterpiece: ImageViewZoom,HorizontalVariableListView,AndroidWheel,purePDF
    HomePage: http://www.sephiroth.it/

  11. Cyril Mottier
    Github Address: https://github.com/cyrilmottier
    Masterpiece: GreenDroid,Polaris
    HomePage: http://cyrilmottier.com/

2. Group

  1. Square
    Github Address: https://github.com/square
    Masterpiece: okhttp, fest-android,android-times-square, picasso, dagger, spoon and so on HomePage: http://square.github.io/

  2. Inmite s.r.o.
    Github Address: https://github.com/inmite
    Masterpiece: android-styled-dialogs,android-grid-wichterle,android-selector-chapek
    HomePage: http://www.inmite.eu/

License

Copyright 2014 trinea.cn

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
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