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Scenario:

I intend to make a donate version of my ad supported application, via paypal library. The process should be simple but effective: if the user makes the transaction, and the result is Ok, I will generate a serial number for the application and activate it.

Questions

  • the serial number needs to be generated based on something unique on the device. What should this be, the IMEI number ? Or maybe I should consider the current google account logged on the phone? In this way if the user changes the phone, he can still use the application.

  • I need to store this serial number in my application. What would be the easiest way to do this ? I wouldn't like to make a sqlite database only for this purpose, as I don't need it for something else. On each activity start I will check if the serial number is correct.

Any response is gladly taken. Thank you for your time.

dsolimano
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Alin
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1 Answers1

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  1. You can use android unique id. See here.

  2. The storing is really simple. Just use shared preferences.

Community
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Vladimir Ivanov
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  • Thank you for your comment. I thought a little more on the issue and I thing I'll go with the current gmail account as a source for the serial number. In this way, the use can still activate the app if he gets a new device. – Alin May 10 '11 at 06:10