Android apps को अक्सर background काम करने की आवश्यकता होती है — ऐसे tasks जो तत्काल UI के बाहर चलते हैं, जैसे डेटा syncing, uploads, या periodic jobs। Android कई mechanisms (WorkManager, Services, coroutines) प्रदान करता है जिनके अलग-अलग use cases हैं, साथ ही OS से महत्वपूर्ण constraints भी।
background काम के विकल्प
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COROUTINES (in a ViewModel scope) → for async work tied to the UI/screen (network calls,
loading data) — runs while the screen is active
WORKMANAGER → for DEFERRABLE, GUARANTEED background work that must complete (even if the
app closes or the device reboots): syncing, uploads, periodic tasks, retries
→ the RECOMMENDED solution for most persistent background work
FOREGROUND SERVICE → for ongoing, user-visible background work (music playback, navigation,
active tracking) — shows a persistent notification
SERVICES → general background components (largely superseded by WorkManager/coroutines
for most cases)