GitHub repository: zlhcode/MagicIndicator
Description: A powerful, customizable and extensible ViewPager indicator framework. As the best alternative of ViewPagerIndicator, TabLayout and PagerSlidingTabStrip   ——   强大、可定制、易扩展的 ViewPager 指示器框架。是ViewPagerIndicator、TabLayout、PagerSlidingTabStrip的最佳替代品。支持角标，更支持在非ViewPager场景下使用（使用hide()、show()切换Fragment或使用setVisibility切换FrameLayout里的View等），http://www.jianshu.com/p/f3022211821c