Add range-seek-bar

Author: Trinea

README.md

@@ -1119,6 +1119,11 @@ Demo地址：[Download Demo](https://github.com/daimajia/AndroidSwipeLayout/rele
 显示  DialogFragment 时背景模糊效果  
 项目地址：https://github.com/tvbarthel/BlurDialogFragment  
 Demo地址：https://play.google.com/store/apps/details?id=fr.tvbarthel.lib.blurdialogfragment.sample  
+
+1. range-seek-bar  
+随机值选取的 SeekBar  
+项目地址：https://github.com/yahoo/android-range-seek-bar  
+效果图：![Renderings](https://github.com/yahoo/android-range-seek-bar/raw/master/demo_screenshot.png)  
 <a href="https://github.com/Trinea/android-open-project#%E7%9B%AE%E5%89%8D%E5%8C%85%E6%8B%AC" title="返回目录" style="width:100%"><img src="http://farm4.staticflickr.com/3737/12167413134_edcff68e22_o.png" align="right"/></a> 
 
 ## 第二部分 工具库