Udacity's Android Developer Nanodegree gets up to speed with Android Architecture Components with an important update. This recognizes that the components are growing in popularity and can even be considered the modern way of doing things on the platform.
This new class talks us through the four subtopics that comprise the Architecture Components:
1. The Room persistence library - an ORM for easier interaction with a backend database.
2. LiveData - based on RxJava and the Observer pattern so that the UI can be automatically updated upon any change happening to the underlying data store.
3. ViewModel - Caching and preserving data/state during configuration changes.
4. Lifecycle Aware Components - to make objects that haven't got a lifecycle (as defined by the platform) to become lifecyle aware.