Android offre plusieurs options de stockage local pour différents besoins — Room/SQLite (données structurées), DataStore/SharedPreferences (paramètres clé-valeur), fichiers, et bien d'autres. Choisir la bonne option en fonction de la nature des données est important.
Options de stockage
ROOM (over SQLite) → relational DATABASE for STRUCTURED data, queries, relationships:
→ the recommended way to store significant structured/relational data locally
DATASTORE → modern KEY-VALUE (and typed) storage for preferences/settings:
→ replaces SharedPreferences; coroutine/Flow-based, safer
SHARED PREFERENCES → older key-value storage (simple settings) — being superseded by
DataStore
FILES → internal/external storage for files (app data, media, documents)
KEYSTORE / EncryptedSharedPreferences → SECURE storage for sensitive data (keys, tokens)
