ActionBar-PullToRefresh provides an easy way to add a modern version of the pull-to-refresh interaction to your application.
Typekit is a library that help you quick change default font of your android application. You don't need to add any custom view or tag to your current xml layout file. You make a quick config in your application class and change the font that you need specific for a style.
An Android library to create similar buttons to Medium clapping effect with few lines of code and lots of customization.