Just to expand a bit; you can use the code in 4(c)(ii) to check for an
expiry date, and in your onCreate method, you look for a file on the SD
card, if it doesn't exist create it to containing the expiry date, if it
does exist read it and check if the app has expired.
Yes, it means that the user could delete the file from the SD card if
they wanted to, but Android is designed to leave nothing behind when an
app is uninstalled, so it's probably the best option you have.
Al.
Al Sutton wrote:
> http://andappstore.com/AndroidPhoneApplications/licensing.jsp
>
> Al.
>
> Craig wrote:
>
>> Does anyone have a somewhat secure method of expiring a trial version
>> of an app a certain amount of time after an install?
>>
>> I do not want to use a server, because I am making a game that
>> shouldn't need permissions.
>>
>> I would like the expiration data to survive an uninstall, but I am ok
>> if it doesn't survive a manual edit of the database. Do an
>> application's database entries get deleted when an app is uninstalled?
>> How about preferences? Local files? Other methods?
>>
>>
>>
>>
>
>
>
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