Triad is a tiny Android library which enables use of the Model-View-Presenter pattern in an easy way. It uses custom Views to replace the dreaded Fragments, and introduces Presenter classes to separate business logic from view logic. Since the Presenters are plain Java objects, tests for these classes can run blazingly fast on a local JVM.

Soot is a Java optimization framework. It provides four intermediate representations for analyzing and transforming Java bytecode:

• Baf: a streamlined representation of bytecode which is simple to manipulate.
• Jimple: a typed 3-address intermediate representation suitable for optimization.
• Shimple: an SSA variation of Jimple.
• Grimp: an aggregated version of Jimple suitable for decompilation and code inspection.

• 3D Style PageFlip like iBooks.
• Implemented by pure Java.
• Based on OpenGL 2.0.
• Supports single page and double pages flip.

This tool will remove all the class in R.java except the styleable class and replace the reference into the constant value. So you can reduce the dex files number and apk size.

SQLite is simple and lightweight; it follows that managing SQLite databases on Android should be as well.

Squeaky strives to be a straightforward approach to creating, migrating, and accessing SQLite databases.

A TextView library that allows the user to increase/decrease font size with a two finger gesture by the user.