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