android - How to get contact change notification with contacts details -

i want notified contact change contact details.

through contactobserver , can notifications when ever contacts getting changed or updated.

but intention exact contact id of changed contact .

as alternative -

right , storing contact details in own db , whenever contact change notification comes , compare both contact lists find out odd one.

i know poor way fulfil objective.

are there other efficient ways achieve ?

even have used new apis of contentobserver ( v16 )

  @override   public void onchange(boolean selfchange, uri uri) {    //still uri not useful detect changed contact   }

KHS