Android-One clicklistener for many CheckBoxPreference

I have some CheckBoxPreference elements for which I would like to use one onClickListener for all the CheckBoxPreference in my page. Here is what I'm trying to do:

    CheckBoxPreference checkboxPref = (CheckBoxPreference)getPreferenceManager().findPreference("preference1");
    CheckBoxPreference checkboxPref1 = (CheckBoxPreference)getPreferenceManager().findPreference("preference2");
    checkboxPref.setOnPreferenceClickListener(new Preference.OnPreferenceClickListener() {
        @Override
        public boolean onPreferenceClick(Preference preference) {
            CheckBoxPreference pref = (CheckBoxPreference) findPreference("preference1");

            if (pref.isChecked())
            {
                pref.setChecked(false);
                dialog.show();
            }else if (!pref.isChecked())
            {
                pref.setChecked(true);
                dialog.show();
            }
            return false;
        }
    });
}

How can i make this onPreferenceClick() be executed for the checkboxPref1? Any ideas? Thanks!

OnePreferenceClickListener listener = new Preference.OnPreferenceClickListener() {
    @Override
    public boolean onPreferenceClick(Preference preference) {
        CheckBoxPreference pref = (CheckBoxPreference) findPreference("preference1");
            pref.setChecked(!pref.isChecked());
            dialog.show();
        return false;
    }
});
checkboxPref.setOnPreferenceClickListener(listener);
checkboxPref1.setOnPreferenceClickListener(listener);

Alternatively you can have your class implement the interface and then just pass this to both checkbox preferences.