Apa iku hot reload lan apa gunane?

Question

Accepted Answer

**Hot reload** minangka salah sawise fitur Flutter sing paling dikarepake — iki ngidini sampeyan mangsuli pasudan kode **ditampilake ing aplikasi sing lagi mlaku meh langsung** (sub-detik), tanpa kudu restart aplikasi utawa ilang state-ne. Iki nyepet banget pengembangan lan eksperimen.

## Apa sing didol hot reload

```text
HOT RELOAD injects updated code into the RUNNING app:
  → make a code change → save → see it reflected in ~1 second
  → the app KEEPS its current STATE (you stay on the same screen, with the same data)
  → no full restart, no re-navigating to where you were
→ Edit UI/logic and see the result almost immediately while the app runs.
```

## Hot reload vs hot restart

```text
HOT RELOAD → injects changes, PRESERVES app state (fast, ~1s) — for most UI/code changes
HOT RESTART → restarts the app, RESETS state (a bit slower) — for changes hot reload
  can't handle (e.g. changes to main(), global state initialization, some structural changes)
FULL RESTART → rebuild and relaunch (slowest) — for native code changes, deep changes
```

## Apa gunane seneng banget

```text
✓ FAST ITERATION — tweak UI/logic and see results instantly → rapid development
✓ EXPERIMENTATION — try changes, adjust styling, fix bugs quickly (tight feedback loop)
✓ PRESERVES STATE — don't lose your place/data on each change (huge for deep screens)
✓ MUCH faster than the edit→rebuild→relaunch→re-navigate cycle of traditional native dev
→ Dramatically improves developer PRODUCTIVITY and the development experience.
```

## Apa sing penting

Nangertèni hot reload iku gunane merga iki salah sawise fitur Flutter sing paling nonjol sing **cukup nyepet produktibitas pangembangan**, dadi iku kaweruh sing migunani sing nandheske kauntungan kunci Flutter.

Hot reload ngidini sampeyan mangsuli **pasudan kode ditampilake ing aplikasi sing lagi mlaku meh langsung** (sub-detik) **tanpa kudu restart utawa ilang state aplikasi** — menawa iku sampeyan bisa ngedit UI utawa logika lan ndeleng asile langsung nalika tetep pas ing ngendi sampeyan ana ing aplikasi (layar padha, data padha).

Iki transformatif kanggo pengembangan: iku ngenable **iterasi cepet** (ngotak-atik lan mangsuli asile langsung), **eksperimen gampang** (nyoba pasudan, ngruwohi styling, beneri bug ing loop umpan balik kenceng), lan krusial **nelusuri state** (dadi sampeyan ora ilang papan utawa kudu mbalik menyang jero aplikasi ing saben pasudan — penyelamat wektu gedhe banget).

Nangertèni bedane antarane **hot reload** (nelusuri state, kanggo luwih akeh pasudan), **hot restart** (ngreset state, kanggo pasudan hot reload ora bisa nanggulangi kaya `main()` utawa inisialisasi global), lan restart lengkap (kanggo pasudan native) iku praktek gunane kanggo ngerti sing mbok dienggo.

Hot reload luwih cepet tinimbang siklus pangembangan native tradisional (ngedit, bangun, luncurake, mbalik menyang jero), iku kenapa iku asring dikutip minangka alesan gedhe pengembang kagolong Flutter — iku gawe pengalaman pengembangan cepet lan ngenakake.

Menawa hot reload cukup nyepet produktibitas pangembangan Flutter lan pengalaman (umpan balik langsung nalika nelusuri state) lan iku salah sawise kauntungan paling dipuja Flutter, lan merga nangertèni iku (apa sing didol, pembedaan reload/restart, lan apa gunane) nandheske kauntungan kunci pangembangan Flutter, nangertèni hot reload iku kaweruh sing gunane, praktek relevan — fitur sing cukup nyepet ngalur workflow pangembangan Flutter lan kauntungan nonjol kerangka kerja sing patut nangertèni lan manfaatke.