Android In-App Purchase check buyer offline
问题 I have implement in app purchase (managed) in my application using billing services when ever user wants to buy item he will make purchase request that required internet even if user has already bought the item. so for user convenience i am doing that if user has bought the item then a value will be save in shared pref. and when ever user click on that particular item then 1st it will check shared pref. value that either user has bought item or not if not then go for purchase request else