aosp-framework-services

AOSP Part VII — Framework Services. Use when reasoning about PackageManagerService (install/uninstall, APK parsing, permissions, package visibility), ContentProviders (ContentResolver, URI permissions, observers, FileProvider, MediaStore), Notifications (NMS, channels, ranker, posting/delivery, listener services, conversations, bubbles), Power Management (PowerManagerService, wake locks, Doze, App Standby, battery saver, BatteryStats), Background Tasks (JobScheduler, WorkManager, AlarmManager, foreground services, exact alarm policy), Multi-User (UserManagerService, profiles, restrictions, cross-user calls), Account & Sync (AccountManagerService, authenticator, syncadapter, SyncManager), Location (LocationManagerService, GPS/network/fused providers, GNSS HAL, geofencing), or Storage (vold, StorageManagerService, scoped storage, FUSE/sdcardfs, MediaProvider, SAF, FBE, adoptable storage, SQLite, SharedPreferences). Chapters 26–34.

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Repository: aospbooks/aosp-internal-book
Last source activity: August 29, 2026 at 15:10
Detected SKILL.md language: English
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AOSP Part VII — Framework Services

Java system services that own per-app and per-user state: package install, content sharing, notifications, power, background work, multi-user, accounts, location, and storage.

Chapters in this Part

26-package-manager.md — PMS, install/uninstall flow, APK parsing, permissions, app components, package visibility

27-content-providers.md — ContentProvider, ContentResolver, URI permissions, observers, FileProvider, MediaStore worked example

28-notifications.md — NotificationManagerService, channels, ranker, posting/delivery, listener services, conversations, bubbles

29-power-management.md — PowerManagerService, wake locks, Doze, App Standby, battery saver, screen on/off, BatteryStats

30-background-tasks.md — JobScheduler, WorkManager, AlarmManager, foreground services, exact alarm policy, restrictions and quotas

31-multi-user.md — UserManagerService, user types (full/profile/system), creation/start/stop, restrictions, cross-user calls

32-account-sync.md — AccountManagerService, authenticator/syncadapter, token caching, SyncManager, periodic sync scheduling

33-location.md — LocationManagerService, providers (GPS/network/fused), GNSS HAL, mock providers, geofencing

34-storage.md — vold, StorageManagerService, scoped storage, FUSE/sdcardfs, MediaProvider, SAF, FBE, adoptable storage, SQLite/SharedPreferences

When to load which chapter

Question mentions PackageManager, install/uninstall, APK parsing, permissions, package visibility → 26-package-manager.md

Question mentions ContentProvider, ContentResolver, URI grant, FileProvider, MediaStore → 27-content-providers.md

Question mentions notifications, NMS, channels, ranker, conversations, bubbles → 28-notifications.md

Question mentions PowerManager, wake locks, Doze, App Standby, BatteryStats → 29-power-management.md

Question mentions JobScheduler, WorkManager, AlarmManager, foreground service, exact alarm → 30-background-tasks.md

Question mentions UserManager, work profile, multi-user, user restrictions → 31-multi-user.md

Question mentions AccountManager, authenticator, SyncAdapter, SyncManager → 32-account-sync.md

Question mentions LocationManager, GNSS, fused location, geofencing → 33-location.md

Question mentions vold, StorageManager, scoped storage, FUSE, MediaProvider, SAF, FBE, adoptable storage, SQLite, SharedPreferences → 34-storage.md