每次都开一个帖子真麻烦，以后全部在这里，会不断更新

汇总Android优秀开源项目
[url]http://www.aswifter.com/android-github/[/url]

ExpandableLayout
[url]https://github.com/traex/ExpandableLayout[/url]

Android酷炫实用的开源框架（UI框架）
[url]http://www.androidchina.net/1992.html#rd[/url]

ShowTipsView实现类似教学指引的蒙板
[url]https://github.com/fredericojssilva/ShowTipsView[/url]

一个标签云效果，随机出现文字，然后渐渐隐去。本布局实现了在屏幕上随机生成可供操作的子控件控件，并完成向中心移动的随控件出现位置，动态设定的动画效果
[url]http://www.open-open.com/lib/view/open1446619191842.html[/url]
仿ios滑动切换的ToggleButton
[url]https://github.com/zcweng/ToggleButton[/url]

SwitchButton实现ios风格开关控件.
[url]http://www.23code.com/switchbutton-2/[/url]

一个简单的SegmentControl控件
[url]https://github.com/7heaven/SHSegmentControl[/url]

Android可滚动Tabs：Scrollable
[url]http://www.open-open.com/lib/view/open1428548390135.html[/url]

Android扩展UI组件---SlideTabLayout
[url]http://www.open-open.com/lib/view/open1428560439354.html[/url]

Android水滴效果的滑动切换页面：SpringIndicator
[url]http://www.open-open.com/lib/view/open1426474795101.html[/url]

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：[url]https://github.com/MichaelEvans/ColorArt[/url]
Demo地址：[url]https://github.com/Trinea/TrineaDownload/blob/master/color-art-demo.apk?raw=true[/url]
这个功能可以和很方便的设置和源图片相和谐的颜色
[url="http://blog.csdn.net/ljx19900116/article/details/41806863"]Android 5.0学习之使用Palette[/url],似乎goolgle也料到了这个功能的重要性，在android5.0里也加入了。

[img]http://dl2.iteye.com/upload/attachment/0106/7991/a63aee02-ffe2-38e3-8024-f50d29dcb684.png[/img]
使用 Palette的兼容包实现从一张图片中提取出颜色（6种色板颜色）。
[url]http://www.jcodecraeer.com/a/opensource/2015/0311/2579.html[/url]

[img]http://dl2.iteye.com/upload/attachment/0106/7995/9a92521e-0e34-3c40-a3bf-cbac0d488399.png[/img]


[url]https://github.com/dmytrodanylyk/circular-progress-button[/url]

[img]http://dl2.iteye.com/upload/attachment/0105/4387/604dd87a-6a4a-3b0f-8b8d-fd0f64fdc25e.gif[/img]


自定义ListView中实现多列和可变大小的元素：AsymmetricGridView
[url]http://www.open-open.com/lib/view/open1413857075528.html[/url]

[img]http://dl2.iteye.com/upload/attachment/0105/4364/6d56c704-c8aa-3451-8407-6211965e685d.png[/img]


显示带模糊效果的DialogFragment：BlurDialogFragment
[url]http://www.open-open.com/lib/view/open1416280263289.html[/url]

[img]http://dl2.iteye.com/upload/attachment/0105/4261/2ed8f8c5-5aad-3175-8dbf-d75970ede743.png[/img]


[url]http://www.open-open.com/lib/view/open1416143899789.html[/url]

[img]http://dl2.iteye.com/upload/attachment/0105/4257/28ba5e38-7be4-332a-87ea-dd684da2e4fb.png[/img]


可展开/折叠的Android TextView：ExpandableTextView
[url]http://www.open-open.com/lib/view/open1418564697292.html[/url]

[img]http://dl2.iteye.com/upload/attachment/0105/4252/9f9d5a86-79ea-3962-a0ef-deee3a2aa43e.gif[/img]


[url]http://www.open-open.com/lib/view/open1416794170805.html[/url]

[img]http://dl2.iteye.com/upload/attachment/0105/4250/787c92e9-e529-318c-8e63-7110e20e4ede.gif[/img]


Android 聊天控件：Android-Chat-Widget
[url]https://github.com/ijarobot/Android-Chat-Widget[/url]

实现股票列表联动效果，实现listview上下滑动：LeftRightScroll
[url]http://www.open-open.com/lib/view/open1419575259656.html[/url]

[url]https://github.com/oli107/material-range-bar[/url]

[img]http://dl2.iteye.com/upload/attachment/0105/4239/d0c51884-a53d-3ca5-b55f-1039969dc410.gif[/img]


[url]https://github.com/Rogero0o/MatchView[/url]

[img]http://dl2.iteye.com/upload/attachment/0105/3308/39bf3e1b-2c1e-3bdc-a52f-443b5b8cd7d6.gif[/img]


动画效果
[url]https://github.com/daimajia/AndroidViewHover[/url]
[img]http://dl2.iteye.com/upload/attachment/0103/5757/cbf5a66e-3e2a-349f-bee7-2f8e2747b340.gif[/img]


[url]https://github.com/daimajia/AndroidViewAnimations[/url]
[img]http://dl2.iteye.com/upload/attachment/0103/5615/fd563b34-9c51-3a9d-bf0e-484f5d517e55.gif[/img]

[url]https://github.com/daimajia/NumberProgressBar[/url]
[img]http://dl2.iteye.com/upload/attachment/0103/5619/bebe3fb7-fe2c-31d0-8a28-ba59c6901f13.gif[/img]

[url]https://github.com/daimajia/AndroidImageSlider[/url]
[img]http://dl2.iteye.com/upload/attachment/0103/5617/39997fff-55ed-3582-8d1f-e6cf78327734.gif[/img]


PagerSlidingTabStrip Tabs滑块滑动效果
[url]https://github.com/astuetz/PagerSlidingTabStrip[/url]

twoway-view实现了双向的listview
竖屏时垂直滚动模式，横屏时水平滚动模式.

[img]http://dl2.iteye.com/upload/attachment/0093/5418/c0310932-7da9-3f6f-9bef-f261df56e64b.png[/img]

[img]http://dl2.iteye.com/upload/attachment/0093/5420/e9a08965-c3e5-3402-985a-5a0d0c1f4b32.png[/img]


AndroidStaggeredGrid 实现瀑布流效果，是一个支持实现多行多列且可变尺寸的阶梯形网格视图的开源库。
StaggeredGridView 的开发是因为该开源作者在实现其Etsy app时发现Google的Android库中没有提供相关功能以实现其需求，即需要在landscape & portrait两种模式下显示不同的行、列，且能在模、竖屏都保持单元格显示同步, 运行稳定，还要支持自定义页头 & 页脚。

[img]http://dl2.iteye.com/upload/attachment/0093/5430/92a66604-50a5-38dd-8a46-312b80b4c02b.png[/img]


CustomLoading
各种加载效果和圆形进度展示。

[img]http://dl2.iteye.com/upload/attachment/0093/5438/ab603d7a-0c8c-3553-ac9c-3f701a6eaf20.png[/img]


ProgressButton实现自定义圆形进度按钮
ProgressButton is a custom progress indicator with a tiny footprint. The default implementation provides a pin progress button as seen on the Android design site. Based on the sample code provided by Roman Nurik onGoogle Code.

[img]http://dl2.iteye.com/upload/attachment/0093/5451/097eadb3-02f4-3420-995f-2ba9f7b5c5ab.png[/img]


介绍一个Android的开源的自定义小控件:TextDrawable
[url]http://my.oschina.net/banxi/blog/122608[/url]
Universal-Image-Loader
[url]https://github.com/nostra13/Android-Universal-Image-Loader[/url]