java - Check if user ever purchased consumable item, + way of consuming items -


i have 2 questions in-app purchases managed google play.

1) how know if user ever purchased consumable app? it's not hard change flag in sharedpreferences when purchase (or when consume right after purchase), when user uninstall app install again, flag lost , don't know if ever purchased or not.

2) right way of using consumables - consumable have usable current installed session of app right? it's ok when user purchase consumable, uninstall app, reinstall , don't have anymore?

i've been searching in docs these things missing.

thanks reply.


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