Ok, I'm about to write the SyncAdapter part of my App. Due to the fact that I have a special case, I'm a little bit stuck:
Additional to the username/password I need to store a URL on a per account base! How I'm supposed to store this extra information, attached to an account? Thanks for your help an patience Dmitri! On 23 Jan., 19:00, Dmitri Plotnikov <[email protected]> wrote: > Using ContentObserver for sync adapters does not sound like a good idea. > There are several reasons for that: > > 1. Data change notifications are not delivered to processes that are not > running. So if your sync adapter is not running for one reason or another > (and the system kills processes when it needs resources), then you won't get > a notification. > 2. ContactsProvider sends only general "whole adapter" notifications, > meaning that when any data element in the database changes it sends a > notification to all observers regardless of what URIs they registered for. > For example, somebody's presence in Talk changes - you will get a > notification. Most of these notifications will have nothing to do with the > changes you need to sync, but there is no way for the adapter to tell. > 3. Having the sync adapter running at all times is a major waste of > resources. > > Fortunately, the sync framework is designed to overcome all these issues. > SyncManager manages sync adapters, calls them at the best time from the > system's perspective, throttles their activities etc. Sync adapters > themselves rely on RawContact.DIRTY flag and the > ContactsContract.CALLER_IS_SYNCADAPTER parameter to find and process > incremental changes. > > There are examples of how that's done. The most comprehensive example is > probably the Exchange (IAS) sync adapter that you can find here: > > http://android.git.kernel.org/?p=platform/packages/apps/Email.git;a=t... > > Cheers, > > On Fri, Jan 21, 2011 at 11:57 PM, himanshu jain <[email protected]>wrote: > > > Hi Dmitri ,@LordAli3n > > I have couple of questions please spare some time or guide me > > direction > > 1) Can we use syncAdapter to get data of a row of raw_contact table if > > that row has been affected (i.e added/deleted/edited). I know > > ContentObserver notify whenever raw_content table changes in > > onChange() method but we dont know which row has been changed ( to put > > this in another way if we add how would we know and if deleted we > > still get it through deleted flag in raw_contact table but how about > > edited one??). > > 2) when we get notification in ContentObserver can we fire requestSync > > (Account account, String authority, Bundle extras) to start Sync ?? > > how we can get data of raw_contact affected by contact application > > using these to parameters . > > 3) Is sync started by ContentProvider API ?? whenever change to it > > happens ??. How?? does it pass any useful uri or data that has been > > changed in raw_contacts??. > > 4) How do we come to know if in the process of syncing something went > > wrong?? does it started again automatically??. > > > thanks any help appreciated !! > > > On Jan 19, 7:31 am, BoD <[email protected]> wrote: > > > If I may intervene. > > > It seems to me that the OP wants to synchronize contacts using the > > > sync adapters APIs, and therefore wants to have his own account type, > > > and raw contacts in this account. > > > > But that means that when the user first starts using this app, this > > > account will be empty, and will synchronize... nothing. > > > Instead, they probably expect to synchronize the contacts already on > > > their phones (in the "local" account, or, more probably, in the gmail > > > account). > > > > -- > > > BoD > > > > On Jan 19, 9:02 am, Dmitri Plotnikov <[email protected]> wrote: > > > > > I am sorry. I guess I just don't understand the requirements. I > > thought you > > > > were writing a sync adapter. Sync adapters all deal with their own > > > > accounts. Google sync adapter deals with google accounts, exchange > > adapter > > > > with exchange accounts and so on. If you are thinking of writing a > > sync > > > > adapter that would handle data already handled by some other sync > > adapter, > > > > it is probably a bad idea. The framework is not designed to have > > multiple > > > > sync adapters handling the same data: only one syncadapter can take > > > > advantage of data versioning. This why I suggested that if you are > > writing a > > > > sync adapter, you should introduce a new account type. This is how they > > are > > > > supposed to work by design. > > > > > Cheers, > > > > Dmitri > > > > On Jan 18, 2011 5:43 PM, "L0rdAli3n" <[email protected]> > > > > wrote: > > > > > > Thanks for your answer Dmitri! > > > > > > Could you explain in few words, how I can use the contacts the user > > > > > stored on his phone, > > > > > which in fact all have already an account_type, by introducing my own > > > > > accout_type? > > > > > > On 14 Jan., 16:26, Dmitri Plotnikov <[email protected]> wrote: > > > > >> I don't fully understand your requirements, but it shouldn't matter > > what > > > > >> _other_ data is in the contacts DB. A sync adapter should only deal > > with > > > > >> its own data. Why not introduce a new account type for this purpose? > > > > > >> Cheers, > > > > >> Dmitri > > > > >> On Jan 14, 2011 5:16 AM, "L0rdAli3n" < > > [email protected]> > > > > >> wrote: > > > > > >> > Hey, > > > > > >> > I'm totally stuck with the ContactsContract-API. Point is that I > > want > > > > >> > only mess around with the Contacts saved in the "local" phonebook. > > But > > > > >> > it seems that every vendor but its own account_type for those > > > > >> > contacts. > > > > >> > And its even worse. The AccountManager isn't even aware of all > > > > >> > account_types?!? > > > > >> > For example on my HTC Desire with HTC Sense, the account_type all > > > > >> > local contacts are saved in is: com.htc.android.pcsc. But when I > > grab > > > > >> > a list of all available accounts from the AccountManager: This > > account > > > > >> > is not in the list!? > > > > >> > I also tested it on a Samsung Galaxy. Same here: The > > AccountManager is > > > > >> > not aware of the account_type used for local phonebookcontacts. > > > > > >> > The whole story is that I wan't to write a app to sync my locale > > > > >> > phonebook with OpenXchange. > > > > > >> > I guess I got that whole new ContactsContract-API wrong, but I > > don't > > > > >> > see any other way, then using RawContacts. Due to that I have to > > care > > > > >> > about the account_type, which is in fact a total mess. > > > > > >> > Hopefully someone can point me in the right direction. Every hint > > is > > > > >> > highly appreciated. > > > > > >> > -- > > > > >> > You received this message because you are subscribed to the Google > > > > >> > Groups "Android Developers" group. > > > > >> > To post to this group, send email to > > > > > [email protected]>> > To unsubscribe from this > > group, send email to > > > > >> > [email protected]<android-developers%[email protected]><android-developers%2Bunsubs > > [email protected]> > > > > > <android-developers%[email protected]<android-developers%[email protected]><android-developers%252Bu > > [email protected]> > > > > > >> > For more options, visit this group at > > > > >> >http://groups.google.com/group/android-developers?hl=en > > > > > > -- > > > > > You received this message because you are subscribed to the Google > > > > > Groups "Android Developers" group. > > > > > To post to this group, send email to > > [email protected] > > > > > To unsubscribe from this group, send email to > > > > > [email protected]<android-developers%[email protected]><android-developers%2Bunsubs > > [email protected]> > > > > > For more options, visit this group at > > > > >http://groups.google.com/group/android-developers?hl=en > > > -- > > You received this message because you are subscribed to the Google > > Groups "Android Developers" group. > > To post to this group, send email to [email protected] > > To unsubscribe from this group, send email to > > [email protected]<android-developers%[email protected]> > > For more options, visit this group at > >http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups "Android Developers" group. 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