Is it possible to block Shared Preferences to avoid being deleted?

Question

By default Shared Preferences on Android are being able to be deleted by phone setup. Is it possible to block this ?. Basically i would like to store a Shared Preference as

Answer 1

What you're suggesting of doing sounds dangerous to me.

Bear in mind that when you're programming, you're programming within a certain environment. The operating system will restrict aspects of what you can and can't do, to keep consistency across applications, provide security etc.

If you're wanting to use shared preferences as a means of providing trials for applications, or some other registration-related issue, I don't know what the framework is on Android, but I believe there's more secure ways of doing it.

Answer 2

It is possible to delete any data stored on the phone.

Shared preferences and files not saved to the SD card will be deleted when the app is uninstalled.

Files saved to the SD card will persists after uninstall, however, the user will have access to read, over-write, and delete these files at will.

If you need truly permanent storage the best way forward would be to store the data remotely on a server that you control.