This project demonstrates how to create a contacts sync provider for Android. It implements a dummy login activity, and a sync provider that creates a single contact named "Elmer Fudd" and updates his social status on sync. For further discussion, see http://www.c99.org/2010/01/23/writing-an-android-sync-provider-part-1/
c99koder/AndroidSyncProviderDemo
A sample project that demonstrates how to create a contacts sync provider for Android
Java