room

Room

https://developer.android.com/training/data-storage/room

Three major components:
- database class
  - represents dabase abstraction
  - @Database
- data entities
  - represents a data entity (a table)
  - @Entity
- DAOs
  - provides methods to access data (insert/update/delete…)
  - @Dao

Learning resources for Room

Android Room with a View - Kotlin
- my conspectus of Android Room with a View - Kotlin
  - official code lab from Google (by Florina Muntenescu)

Persist Data with Room
- my conspectus of Persist data with Room - very good code lab (especially for using ViewModels with Room)
- Github:
  - https://github.com/google-developer-training/basic-android-kotlin-compose-training-inventory-app/tree/room
  - ItemEntryViewModel:
    - https://github.com/google-developer-training/basic-android-kotlin-compose-training-inventory-app/blob/room/app/src/main/java/com/example/inventory/ui/item/ItemEntryViewModel.kt

Save data in a local database using Room

Read and update data with Room

room.txt · Last modified: 2026/04/01 08:35 by kalaschnikow