https://android-dot-devsite-v2-prod.appspot.com/reference/android/content/SyncStatusObserver
SyncStatusObserver | API reference | Android Developers
api referenceandroiddevelopers
https://developer.android.com/reference/android/content/SyncStatusObserver?authuser=1
SyncStatusObserver | API reference | Android Developers
api referenceandroiddevelopers