@Dmitri

Thanks a lot for spending time to answer my questions at least some
doubts are faded off.

1) I understand to use own activity for editing and creating new
contacts.

2) Ok, if i avoid ContentObserver even i had that in mind might
require something to be running in background which is bad agreed.

3) But, there are two use cases first if there is a button that say
sync now and i send request using requestSync() method will it start
immediate sync via SyncManager or again it will depend upon
SyncManager discretion?? if thats true i cannot start immediate
Sync ??.

  Second use case how would i know if there is a change corresponding
to my account in raw_contact utilizing best practice push
notification ?? so that i can trigger syncing.

thanks Dimitri for your time and ideas


On Jan 30, 11:42 am, Dmitri Plotnikov <dplotni...@google.com> wrote:
> Hi Himanshu,
>
> 1) SampleSyncAdapter is still a good source of inspiration.  It has some
> issues and plan to have them fixed in the nearest future.
>
> 2) In releases of Android from Eclair through Gingerbread integrated editing
> of 3rd party contacts is poorly supported.  The trick is to insert a data
> row, "Edit in MyApp", which would take the user to your app and your app
> would then provide an editor activity.  Also, there is no provision in the
> Contacts UI for creating new contacts in 3rd party accounts.  We have fixed
> those issues in Honeycomb.  Now you can specify two activities in your
> metadata xml file: one for creating new contacts and one for editing
> existing ones and voilà! - you have seamless integration.  Of course, it's a
> bit too soon to rely on Honeycomb as the dominant version of Android ;-)  So
> for now you will need to either go with the described hack or only allow
> creation/editing of contacts through your app.
>
> 3) Please consider an alternative to using content observers for a sync
> adapter.  There are several reasons:
>
> - In order to receive notifications, your process will need to be running at
> all times. Or it would have to have a broadcast receiver, which is very very
> costly.
> - Content observer notifications are not reliable.  If your process is not
> running at the time the change occurs, the notification will never be
> delivered.  A broadcast receiver will solve that problem, but please don't
> use broadcast receivers for this!
> - Contacts provider sends out non-discriminated notifications.  Whenever
> anything (e.g. chat presence) changes, all observers are notified whether
> they have supplied a specific URI or not.
>
> What you do want to use is the DIRTY flag and the CALLER_IS_SYNCADAPTER
> query parameter and let SyncManager invoke your sync adapter.  It does some
> sophisticated scheduling and you want to take advantage of it.
>
> Cheers,
> - Dmitri
>
> On Fri, Jan 28, 2011 at 4:22 PM, himanshu jain <himanshu....@gmail.com>wrote:
>
>
>
>
>
>
>
> > Hi All,
>
> > I am trying to implement two way sync.
>
> > 1) I tried using SampleSyncAdapter Code first it works on emulator but
> > not on Device , then i tried to write SyncAdapter with SyncService as
> > a demo app with AccountAuthenticator, as per Documentation for
> > SampleSyncAdapter SyncService gets called on
> > ACTION_AUTHENTICATOR_INTENT but my service does not gets started on
> > device , i defined service in manifest and all things but does not
> > work on device it gets started on Emulator.
>
> > 2) If i port my app on device i can see only first name and last name
> > fields how can i see all the fields available for contact
> > application ?? can i edit them also utilizing the same native
> > editor??.
>
> > 3) I planning to add contentobserver for sync from device to cloud
> > whenever there is change corresponding to my account in contact table
> > i want to sync it after listening through contentobserver.Is that
> > correct ??.
>
> > thanks
>
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