Android Achritecture Components Introduction
summary
Google's Architecture Components are presented through concrete examples: Room: entity, DAO, database creates an SQLite abstraction with annotation-based SQL, compile-time validation, LiveData/RxJava compatibility and easy tests via an in-memory database builder. Lifecycle components let objects register as observers and receive annotated callbacks on start/stop. ViewModel survives rotation by holding UI data outside the activity lifecycle via ViewModelProviders. LiveData is lifecycle-aware observable (mutable vs exposed immutable), integrates with data binding and lets Room return live query results with thread handling.
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chapters (8)
- 0:00Introduction to speaker
- 1:07What are Architecture Components
- 2:08Room database library
- 6:40Lifecycle aware components
- 9:27ViewModel explained
- 12:39LiveData and data binding
- 17:43Simple architecture example
- 20:12Summary and resources
