ContentObserver for contact update manually

Question

I have registered a ContentObserver from service and I get the onchange() function when there is update in phone like call or contact update. But I want the onchange() function to be called only when add, update or delete happens. But I don't want when call is incoming or outgoing. So can anybody tell me which URI I can register in contentObserver? My code is here

getContentResolver().registerContentObserver(ContactsContract.Contacts.CONTENT_URI, true,new Contact_change());

and Contact_change.java class is like

public class Contact_change extends ContentObserver{

  public Contact_service() {
    super(null);
  }

  @Override
  public void onChange(boolean selfChange){
    Log.i("contact_service","onchange");
    Super.onChange(selfChange);
   }

 @Override   
 public boolean deliverSelfNotifications() {
  return true;
  }

}

Edit:
I have one more problem is that after stop the service if I made change in contact then also onchange() function is called. So how can I stop that or un register the contentobserver.

i don't think this is possible. the time of last call is a field of the Contact, therefore changing it is changing the Contact — njzk2, Sep 03 '12 at 08:17
Is it ant other way for get notification of changes in contact?Because i want to synchronize the contacts with my application. — Nency, Sep 03 '12 at 08:19
I don't think it is really a problem if you receive extra notifications for event you don't need. — njzk2, Sep 03 '12 at 08:23
i have problem because even if the contact is not updated but call is incoming or outgoing and the onchange() is called then also i consider as contacts are updated and then i will write all contacts from phone to database.So it is worth case. — Nency, Sep 03 '12 at 08:26
it will not harm my application but the performance will be decrease bcz if 1000 contacts are store from phone to database then it will take 5 minutes..and end user point of view it will worth to stay idle in that case — Nency, Sep 03 '12 at 08:35
then you should consider not storing contacts in your own database. what reason do you have to? — njzk2, Sep 03 '12 at 08:37
let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/16180/discussion-between-nency-and-njzk2) — Nency, Sep 03 '12 at 08:40

score 0 · Answer 1 · edited May 23 '17 at 12:33

0

I used the ContactsContract.Contacts.CONTENT_VCARD_URI as mentioned here.

And also you could set a threshold_time like the one mentioned here

Its a bit more efficient.

edited May 23 '17 at 12:33

Community

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answered Oct 19 '12 at 08:08

madlymad

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score 0 · Answer 2 · answered Feb 25 '14 at 13:23

In order to stop receiving notifications from ContentObserver, you must unregister it.

Create an instance of ContentObserver which you can use later to register/unregister.

Contact_change changeObserver = new Contact_change();

Register observer:

getContentResolver().registerContentObserver(ContactsContract.Contacts.CONTENT_URI, true,changeObserver);

Unregister observer:

getContentResolver().unregisterContentObserver(changeObserver);

ContentObserver for contact update manually

2 Answers2

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