android - How to synchronize all the phone contacts with my app -


in application want show option sync contacts app.
should synchronize contacts app (just facebook when go contact tab of find friends page).

so when contacts synchronized, i'll match contacts server , latter return members in contact list ones registered on server not in friends list.

so can me?
how synchronize device contacts application?

you should create sync adapter , inside should sync , observe content provider contacts.

for detailed explanation can take reference below reference. http://blogs.quovantis.com/syncing-contacts-with-an-android-application-2/


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