Author: Attila Alexander Teglas Page 9 / 12

The AChartEngine library is helpful to facilitate the creation and display of charts, such as for statistics, trends, stocks, etc. Check it out here: https://code.google.com/p/achartengine/

The Otto library is an event bus which is used to separate the various components of an app, although they still should be able to communicate with each other. Check it out here: https://github.com/square/otto

Anyone who knows dealing with Android’s ListViews and how to use headers will like this library. As its name already indicates it, it is a library helping out with creating and managing “sticky list headers.” Check it out here: https://github.com/emilsjolander/StickyListHeaders

The Android Saripaar library is useful for UI validation. For example, if you need to validate that the credentials of a user are correct, you can use this. It is also very easy to integrate. Check it out here: https://github.com/ragunathjawahar/android-saripaar

This Joda Convert library offers the functionality of providing a set of classes helping to do conversion. Namely, converting between objects and strings. Very helpful! Check it out here: http://www.joda.org/joda-convert/