Auto sync for local DB with sync adapters

I am writing a sync application using sync adapter,and try to sync lo开发者_如何学Gocal db automatically, First time when i create account it works fine but when i make changes in the local db, it is not syncing automatically even if i set ContentResolver.setSyncAutomatically(account, AUTHORITY, true).

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try this

ContentResolver.setIsSyncable(account, authority, 1);
ContentResolver.setSyncAutomatically(account, authority, true);
ContentResolver.addPeriodicSync(account, authority, new Bundle(), 1);