On Nov 11, 10:53 am, Trung Nguyen Thanh <[email protected]> wrote: > Thanks you for your help. > > But I still need something more clear. Such as what is main fuction of > Restore Transaction =.=. > > Example: > > I have 10 product to sell and user already bought 2. After that, user > swipe data (or buy new device or whatever ..). How do I know 2 id of > item which was bought by user. (to prevent from user will select to > buy it again, to high light that 2 item when app run in 1st time ... ) > > Thanks. > > On Nov 10, 6:19 pm, Kostya Vasilyev <[email protected]> wrote: > > > > > > > > > You're right, Dungeons restores transactions from the server if it detects > > that it was just installed and doesn't have purchase history yet. > > > Only managed items are restored, that's part of the definition of a managed > > item. > > >http://developer.android.com/guide/market/billing/billing_overview.ht... > > > The billing infrastructure prevents repeat purchases of managed items. > > Still, it's a good idea to not present the purchase UI for an item that's > > already been purchased (and present some other UI or functionality > > enhancements that the user purchased with the item). > > > Also be aware that some users backup and restore apps and their data when > > wiping / flashing / getting a new phone, this matters if you encrypt your > > purchase state data with anything device specific (e.g. the device id or > > the IMEI). > > > -- Kostya > > > 2011/11/10 Trung Nguyen Thanh <[email protected]> > > > > I tried to search about that problem, but didnt get many information. > > > I just know that: > > > - Restore in the first time user install app or when user reinstall > > > when they uninstall/wipe data. > > > - Restore transaction just apply for managed-product. > > > I tried to read Dungeon Example, there are few line of code about > > > restore transaction like: when to call restore request, when to get > > > restore respone... but i dont know: > > > - How to get return information? (like item id that user had bought > > > cause we need that id to ensure that user will not buy it again?) > > > > -- > > > 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] > > > For more options, visit this group at > > >http://groups.google.com/group/android-developers?hl=en
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