I've searched for a solution to this problem but all I could find was this:
http://groups.google.com/group/android-developers/browse_thread/thread/08ce5ab110c56b29?pli=1# ...and this near the bottom: http://groups.google.com/group/android-developers/browse_thread/thread/4fb4cfab8b079809/d4f41ee6084f60bb?lnk=gst&q=trial+period#d4f41ee6084f60bb I see many "Lite" and free versions of apps on the Android Market that have Paid App counterparts (by the way, does anyone else loathe the pseudo-word "lite" ??). Many of these implement some sort of Trial Period. Does anyone have ideas on how this could be done? I could write the current date to a config file on the app's first run, then check this date on all subsequent runs to see if the current date minus the first run date is past the trial period # of days. But what's to stop the user from uninstalling the app, thus wiping out the config file, and reinstalling it to get a new trial period? I could have the app report the unique Android ID and First Run date to a licensing server and then have the app check it on all subsequent runs, but I would really like to avoid network access permissions and usage if the app doesn't need them. Is there a way to write a config file to a system folder (not the SD card, as it could be wiped) that doesn't get deleted when the app is uninstalled, and can't be easily modified/deleted by the user (w/out root access, of course)? It's my understanding that because each app runs in its own sandbox, its access to files and folders outside of its own space is limited/restricted. Any light shone on this subject would be greatly 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] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
