@Kostya, no I don't use "Wipe Data". I don't know what the exact underlying problem was at this point but I managed to fix things by manually deleting the sharedpreferences file from the emulator's shared_prefs folder while in the ADB shell, and then recreating it as an empty file using "echo -n >app_global". Note "app_global" is just an arbitrary name I chose for the sharedpreferences file. I can't be certain, but it looks like the emulator will not recreate the sharedpreferences file if you delete it yourself manually, like I did when I was having trouble persisting sharedpreferences writes between emulator sessions and tried that to fix the problem. Now everything works fine.
-- roschler On Apr 23, 3:28 am, Kostya Vasilyev <[email protected]> wrote: > Robert, > > Do you start the emulator with "Wipe data" option, by any chance? > > If you are, that explains it, as wiping the data means.... well, wiping > the data. > > The preferences are stored in the file system of the emulated Android > device, just like on a real phone, not directly within the host > computer's file system. > > You can find the files under: > > /data/data/<your package name>/shared_prefs > > -- Kostya > > 23.04.2011 10:02, Zsolt Vasvari пишет: > > > > > > > > > > > No idea about the MODE_PRIVATE stuff, but I use > > PreferenceManager.getDefaultSharedPreferences() and it works fiine. > > Why do you need to control the file name? > > > On Apr 23, 12:15 pm, roschler<[email protected]> wrote: > >> I am using the following code to save data to my Android application's > >> shared preferences: > > >> private SharedPreferences getOurSharedPreferences() { > >> return getSharedPreferences(SHARED_PREFS_FILENAME, > >> MODE_PRIVATE); > >> } > > >> SharedPreferences sharedPrefs = getOurSharedPreferences(); > >> SharedPreferences.Editor editor = sharedPrefs.edit(); > >> editor.putString(keyName, theString); > >> if (!editor.commit()) > >> throw new RuntimeException("Unable to save new string."); > > >> // Get it back as a test. > >> String s2 = getStringFromStorage(keyName); > > >> Where SHARED_PREFS_FILENAME is a private final static string and > >> keyName is the name of whatever key I'm currently using as a field > >> name. The commit works fine, I don't get an exception. As you can see > >> I added a test that retrieves the recently committed string and when I > >> check it (s2) the value is fine. So I am not having any problems with > >> shared preferences storage during the lifetime of my app. However, > >> when I relaunch the application in the emulator the shared preferences > >> storage area is empty and I can't find the values I stored in the last > >> emulator session. I did some reading and as far as I can see the > >> stored values should persist across sessions, apparently they are > >> saved in an XML file belonging to the emulator. Yet I am having > >> problems. > > >> Can anyone tell me why my shared preferences storage values are not > >> persisting between Android emulator sessions? > > >> -- roshcler > > -- > Kostya Vasilyev --http://kmansoft.wordpress.com -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
