ok, thank you. so, i guess the bottom line is that a free app cannot check the license on another app that is a paid app, even if it is the same publisher. there seemed to be several posts that seemed to indicate this would be possible, thats what got me confused.
On Dec 5, 12:50 pm, Kostya Vasilyev <kmans...@gmail.com> wrote: > Let the free app (main) ask the paid app (the unlocker) run the LVL > check and report results using any of the available inter-application > communication options available on Android. > > As far as security goes - encrypting / signing the communication is > one option, signing both apps with the same key and using a > signature-protected permission is another. > > 5 ÄÅËÁÂÒÑ 2011šÇ. 21:28 ÐÏÌØÚÏ×ÁÔÅÌØ androidmediadeveloper > <kamathaj...@gmail.com> ÎÁÐÉÓÁÌ: > > > > > > > > > sorry, not clear. the free app can check if the paid app was > > purchased ? it is the same publisher. > > > also, seems like i can use the android:sharedUserId and write the > > license into shared prefs from one app and have the other read from > > it. Is this a security issue ? > > > thanks > > ajith > > > On Dec 5, 11:50šam, b0b <pujos.mich...@gmail.com> wrote: > >> Yes this is doable if both app have šthe same userId > > >> You can implement a remote service in the unlocker paid app that check the > >> license. > >> Then your free app invoke binds to that remote service to do the check. > > >> If both of your apps share the same android:sharedUserId šyou're not forced > >> to make the service public. > >> If you don't have already have set a android:sharedUserId don't change it > >> afterwards or it will cause problems (file permissions). > > > -- > > You received this message because you are subscribed to the Google > > Groups "Android Developers" group. > > To post to this group, send email to android-developers@googlegroups.com > > To unsubscribe from this group, send email to > > android-developers+unsubscr...@googlegroups.com > > 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 android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
