iOS:我能否判斷用戶是否已選擇退出 Apple 的“與應用程序開發人員共享”設置? [英]iOS: Can I tell if a user has opted-out of Apple's "Share With App Developers" setting?
IOS應用內購買-用戶購買任何應用內購買項目后,如何授予用戶訪問所有應用內購買內容的權限? [英]IOS In App Purchase - How can we give the user access to ALL In App Purchase content once they buy ANY In App Purchase item?