I am implementing the new BackupAgentHelper from android 2.2.
For it to work you need to supply the name of the SharedPreferences that you want to backup:
public class MyPrefsBackupAgent extends BackupAgentHelper {
// The name of the SharedPreferences file
static final String PREFS = "user_preferences";
// A key to uniquely identify the set of backup data
static final String PREFS_BACKUP_KEY = "prefs";
// Allocate a helper and add it to the backup agent
void onCreate() {
SharedPreferencesBackupHelper helper = new SharedPreferencesBackupHelper(this, PREFS);
addHelper(PREFS_BACKUP_KEY, helper);
}
}
Problem is I use the PreferenceManager.getDefaultSharedPreferences()
method in my application to get the default shared preferences instance. Now I need to supply the name of that file. How can I find out what name that is?
(And why do they not supply a helper that just does a defaultsharedpreferences backup?)