PreferenceActivity tutorial - Resetting Preferences

[Guardian17]

In regards to the PreferenceActivity tutorial, after running an App a few times, is there a way to reset the Preferences to the original pristine/unused conditions so that I can test whether the defaults do work properly? If so, is it possible to reset the preferences for an App loaded on a device, and also for the App running on the emulator?

Additionally, where do the preferences get stored? Inside the App .apk? In a separate private file?

 

[Erel]

The preferences are stored in a folder inside File.DirInternal. The file name depends on the package name. You can use File.ListFiles to find the file and delete it.

 

[Guardian17]

Could not find any files

I generated a sample program to test the preferences and to also use File.ListFiles to see what the preferences file might be.

I've attached a .ZIP file of the program.

The preferences do seem to work properly. Using the debugger, I run the program, access the preferences and change them; exit the program, then re-compile and run the program, and the previously stored/changed preference settings that I had set do appear.

The package name assigned to this program is "my.test.file.list".

When the App runs, the Log of "FileList" only shows:
"FileList = (ArrayList) []"

No file names are shown (usually inside the [brackets] ). Is there something that I'm missing?

 

[NJDude]

You can get the number of files (if any) like this:

Log("FileList = " & FileList.Size)

In your case, it always returns zero. Maybe the file is saved elsewhere.

 

[Guardian17]

Sooooooooooo........

So ....... I don't understand. It's obvious that the preferences ARE stored SOMEWHERE, because it remembers the settings from run to run. But if not in "File.DirInternal", then where?? I was expecting a file like "my.test.file.list.ini" to be among the files, but there's nothing at all.

(?????)

(I tried FileList.Size and also got zero).

 

[Erel]

If you are only doing it for testing then you can manually uninstall the app and then install it again.

If you need this feature for your program then you should create the code that explicitly set the preferences to the default value.