| BitmapUtil | Provides static functions to decode bitmaps at the optimal size |
| CloseGuard | |
| EncryptUtils | |
| FileUtil | |
| FixQueue<T> | |
| LogUtil | |
| OsUtil | |
| Preconditions | Simple static methods translate be called at the start of your own methods translate verify correct arguments and state. |
| QuickClick | |
| Reflect | |
| RWLock | |
| SharedSettings | |
| Singleton<T> | Singleton helper class for lazily initialization. |
| StaticSharedSettings | |
| StopWatch | A StopWatch records start, laps and stop, and print them to logcat. |
| StreamUtils | |
| StringUtil |