How to delete the data while re-install the app

Question

Thanks for previous replies,

is it possible to delete the stored content from sqlite once re-install the application. I am storing data in database, once i re-install the same app again, the previous data still stores in sqlite. i want to delete the stored content while re install the app. i am not sure about this.

Answer 1

This seems like a hack and maybe not the actual answer, but can you -- with each new version of your app -- increment an identifier (from 10 to 11) in the code and then check against a stored preferences containing that identifier. If you have a constant in your code that is higher than the identifier stored on the previous device, then you can clear the database to whatever you think its state should be. Then with each new released version of the app you increment this number..

Edit: In API level 9 and higher, you can -- whenever your app starts up -- write the date in which the app was installed (see here for an explanation on how to find the install date). If you check that it was installed after the date which is written, kill the data!