Kepiye carane nyimpen data lokal ing Android?

Question

Accepted Answer

Android nyadhiakake pirang-pirang opsi **panyimpenan lokal** kanggo kabutuhan sing beda-beda — **Room/SQLite** (data terstruktur), **DataStore/SharedPreferences** (setelan key-value), **file**, lan liyane. Milih sing tepat adhedhasar sifate data iku penting.

## Opsi panyimpenan

```text
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SHARED PREFERENCES → older key-value storage (simple settings) — being superseded by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)
```

## Milih opsi sing tepat

```text
Structured/large/relational data, queries → ROOM (SQLite) — e.g. a cache of records,
  app data with relationships
Simple settings/preferences/flags → DATASTORE (or SharedPreferences)
Files (images, documents, downloads) → file storage (internal/external)
SENSITIVE data (auth tokens, credentials, keys) → ENCRYPTED storage / Keystore
  (don't store secrets in plain SharedPreferences/files)
→ Match storage to the data's structure, size, and sensitivity.
```

## Panyimpenan internal vs eksternal

```text
INTERNAL → private to the app (sandboxed); removed when the app is uninstalled
EXTERNAL → shared storage (e.g. media); needs care with permissions and scoped storage
  (modern Android restricts broad external access for privacy)
```

## Apa gunane

Paham babagan panyimpenan data lokal ing Android iku berharga amarga **aplikasi asring kudu nyimpen data ing piranti** (cache, setelan, data offline, token), dadi iku kawruh praktis sing gunane kanggo mbangun aplikasi nyata.

Android nyadhiakake pirang-pirang opsi sing cocog kanggo kabutuhan beda-beda, lan milih kanthi bener iku penting.

Paham **opsi-opsine** — **Room** (abstraksi sing direkomendasikake marang SQLite kanggo data terstruktur, relasional, utawa data gedhe karo query), **DataStore** (panyimpenan key-value/ketik modern kanggo preferensi lan setelan, ngganti SharedPreferences lawas karo API sing luwih aman adhedhasar coroutine/Flow), **file** (kanggo media lan dokumen), lan **panyimpenan terenkripsi/Keystore** (kanggo data sensitif) — lan **kapan nggunakake saben-saben** iku kawruh kunci.

Millih **opsi sing tepat** iku penting: Room kanggo data terstruktur/relasional, DataStore kanggo setelan, file kanggo dokumen/media, lan sing penting banget **panyimpenan terenkripsi kanggo data sensitif** kaya token autentikasi lan kredensyal (kudu ora disimpen ing SharedPreferences utawa file tanpa enkripsi — poin keamanan penting, kesalahan umum).

Paham babagan **panyimpenan internal vs eksternal** (internal iku pribadi lan tersandhi kanggo aplikasi, eksternal iku dibaham bareng nanging butuh kahati-hatian karo idin lan pembatasan penyimpanan tersandhi modern sing nglindhungi privacy) iku uga penting kanggo nyimpen data kanthi angkop lan nangani pembatasan sing ana gandheng privacy sing Android mboten modern.

Mpadha-padha panyimpenan karo struktur, ukuran, lan sensitifitas data nggambarakke keputusan sing apik lan nglindungi masalah (alat salah, utawa rahasia disimpen tanpa aman).

Amarga aplikasi asring butuh persistensi lokal (data terstruktur, setelan, file, token) lan Android nyadhiakake opsi kanggo kabutuhan beda-beda, lan amarga milih kanthi angkop (nglakokake nggunakake panyimpenan aman kanggo data sensitif lan ngormati penyimpanan tersandhi) iku penting kanggo aplikasi sing bener lan aman, paham panyimpenan data lokal ing Android iku kawruh berharga lan praktis — kebutuhan umum ing aplikasi nyata, penting kanggo fungsionalitas (nyimpen data sing bener kanthi cara sing bener) lan keamanan (nglindungi data sensitif), lan gunane kanggo mbangun aplikasi sing tetep state lan akawe offline kanthi bener.