android-persistence

Included with Lifetime

$97 forever

Implement Room database schemas and DataStore preferences with proper async patterns in Android. Use when defining Room entities, DAOs, migrations, or replacing SharedPreferences with DataStore.

General

What this skill does

# Android Persistence Standards

## **Priority: P0**

## 1. Configure Room Database

- Return `Flow<List<T>>` for queries, use `suspend` for Write/Insert.
- Keep `@Entity` data classes simple. Map to Domain models in Repository.
- Use `@Transaction` for multi-table queries (Relations).

See [DAO templates](references/implementation.md) for Room DAO patterns.

## 2. Migrate to DataStore

- Replace `SharedPreferences` with `ProtoDataStore` (type-safe) or `PreferencesDataStore`.
- Inject singleton DataStore instance via Hilt.

See [DAO templates](references/implementation.md) for DataStore migration patterns.

## Anti-Patterns

- **No IO on Main Thread**: Room handles dispatchers, but verify Flow collected off-main.
- **No @Entity in UI Layer**: Map to Domain or UI models in Repository.

## References

- [DAO Templates](references/implementation.md)

Files: 3

Size: 5.2 KB

Complexity: 24/100

Category: General

Source: https://github.com/hoangnguyen0403/agent-skills-standard/tree/main/skills/android/android-persistence

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