Did you used sqlite to save your data on Android? If you did, you may be puzzled for the complexity of mechanism. Now the Andoird ORM (Aorm) coming which armed to make it simple for the developers.
Android Floating Label Widgets is a set of input widgets with a hint label that floats when input is not empty.
This library has lots of interfaces and helper classes to help you either extend it and/or change the existing behavior:
Python script that checks for missing string translations in your project's localized languages.