My info doesn´t erase after uninstall the app

I made an app that use the sharedPreferences and i storage some info there, when i uninstall the app and install again the info storage there always appear, i don´t know why. I don´t programming anything to keep them there.

I just upgrade my Galaxy S to 2.2开发者_如何学Python.1 and i did a back up of all my apps including that i made, i don´t know sure if Android does not erase correctly the app.

I did uninstall others apps like facebook one and apparently erase all files fine.

I need suggestion of what can i do, please.

I have the same problem too, and the problem is in the Galaxy S 2.2.1 ROM. It is buggy.

It saves the shared preferences in /dbdata/databases/app-package

Unfortunatelly when you uninstall the application that place is not cleared! It's frustrating.

It makes SharedPreferences completely useless in Galaxy S. When you uninstall, re-install the app you can never change SharedPreferences again.

I don't know if this is still an open question anymore but so long as you follow the rules in the Internal Data Storage API then the files should be deleted for you automatically when the project exits.

You can save files directly on the device's internal storage... When the user uninstalls your application, these files are removed.