class public .... extends Service 로 정의된 class들이며 실제 Service와 대응되는것은 아님.
1. MediaScannerService
./packages/providers/MediaProvider/src/com/android/providers/media/MediaScannerService.java
2. CalendarAppWidgetService
./packages/providers/CalendarProvider/src/com/android/providers/calendar/CalendarAppWidgetService.java
3. DownloadService
./packages/providers/DownloadProvider/src/com/android/providers/downloads/DownloadService.java
4. MediaPlaybackService
./packages/apps/Music/src/com/android/music/MediaPlaybackService.java
5. StkAppService
./packages/apps/Stk/src/com/android/stk/StkAppService.java
6. MailService
./packages/apps/Email/src/com/android/email/service/MailService.java
7. AlertService
./packages/apps/Calendar/src/com/android/calendar/AlertService.java
8. BluetoothHeadsetService
./packages/apps/Phone/src/com/android/phone/BluetoothHeadsetService.java
9. NetworkQueryService
./packages/apps/Phone/src/com/android/phone/NetworkQueryService.java
10. SmsReceiverService
./packages/apps/Mms/src/com/android/mms/transaction/SmsReceiverService.java
11. TransactionService
./packages/apps/Mms/src/com/android/mms/transaction/TransactionService.java
12. DemoImPlugin
./packages/apps/IM/samples/PluginDemo/src/com/android/im/plugin/demo/DemoImPlugin.java
13. FrontDoorPlugin
./packages/apps/IM/src/com/android/im/app/FrontDoorPlugin.java
14. RemoteImService
./packages/apps/IM/src/com/android/im/service/RemoteImService.java
15. RssService
./development/samples/MySampleRss/src/com/example/codelab/rssexample/RssService.java
16. LocalServiceTest
./development/samples/ApiDemos/tests/src/com/example/android/apis/app/LocalServiceTest.java
17. ServiceStartArgument
./development/samples/ApiDemos/src/com/example/android/apis/app/ServiceStartArguments.java
18. RemoteService
./development/samples/ApiDemos/src/com/example/android/apis/app/RemoteService.java
19. NotifyingService
./development/samples/ApiDemos/src/com/example/android/apis/app/NotifyingService.java
20. AlarmService_Service
./development/samples/ApiDemos/src/com/example/android/apis/app/AlarmService_Service.java
21. LocalService
./development/samples/ApiDemos/src/com/example/android/apis/app/LocalService.java
22. IIORegistry
./frameworks/base/awt/javax/imageio/spi/IIORegistry.java
23. MessengerService
./frameworks/base/tests/AndroidTests/src/com/android/unit_tests/os/MessengerService.java
24. LocalService
./frameworks/base/tests/AndroidTests/src/com/android/unit_tests/activity/LocalService.java
25. DisabledService
./frameworks/base/tests/AndroidTests/EnabledTestApp/src/com/android/unit_tests/enabled_app/DisabledService.java
26. EnabledService
./frameworks/base/tests/AndroidTests/EnabledTestApp/src/com/android/unit_tests/enabled_app/EnabledService.java
27. AbstractInputMethodService
./frameworks/base/core/java/android/inputmethodservice/AbstractInputMethodService.java
28. IntentService
./frameworks/base/core/java/android/app/IntentService.java
29. ServiceTestClass
./frameworks/base/test-runner/android/test/ServiceTestCase.java
30. LoadAverageService
./frameworks/base/services/java/com/android/server/LoadAverageService.java