The idea is to both prevent config file editing and to make it work on any
authorized device.
I do mean the completely unorganized SD card. Of course, if you validate the
file with the store every time, you can store it in the app’s storage
(/data/data or equivalent).
I mean the Android UI. The “Storage” settings screen on some devices glosses
over the difference between the SD card mount point and the root mount point.
From: Ralph Versteegen
Sent: Wednesday, December 4, 2013 7:46 AM
To: ohrrpgce
On 4 December 2013 19:20, Keith Gable <[email protected]> wrote:
> You should use the Play APIs for anything related to in app purchases. Best
> practice is usually to check they're authorized every time they're connected
> when they start the app.
Why? In case they purchase it from another device? Or to prevent
config file editing?
> You can store anything on the storage card and it will persist. Only the app
> folder (/data/data/com.you.game usually) gets deleted on uninstall.
So here by storage card you mean just completely unorganised storage?
I wanted some form of private storage, since that seemed sensible for
storing purchase data. But if we're not worried about someone plugging
their phone into their computer and simply opening and editing the
relevant file with RELOADSpy (or possibly uploading it), then well
obvious we're not worried about anything.
I think the way of storing private persistent data I was thinking of
is "Shared Preferences"
https://developer.android.com/guide/topics/data/data-storage.html#pref
however it doesn't explicitly say it's not deleted on uninstall.
> Note that many devices don't distinguish in the UI the storage card and the
> /data/data partition. In Android 2.x, the storage card was usually /sdcard.
> I forget what it is on 4.x.
What do you mean by UI?
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