I want to encrypt data in internal storage and than I want to open this data with a viewer. I use custom renderer in ios and android for document viewer. (For example in android: I get internal storage path and I create uri and than I open intent with uri. Or for example in ios: I create QLPreviewController with file path and I open with UIApplication.SharedApplication.KeyWindow.RootViewController.PresentViewController). So I need a file path for preview a file. If I want to preview a encrpyted file, I need decrypt and save this way in internal storage. But I don't want to save any decrypted file on phone external or internal storage.
Is there a way to open the file from ram without saving it to the phone? Or is there a way to open the file from encrypted data?
Sorry for my bad English.