Change the summary of a ListPreference with the new value (Android)

Question

How can I modify the summary of a ListPreference to the new \"Entry\" string selected by the user (not the entry value)

I suppouse its with setOnPreferenceChangeList

Answer 1

I also faced this problem and I finally found a solution by using the value coming from the listener. In my example below (for a ListPreference), I first get the index of the value in the ListPreference array, then I retrieve the label of the value using this index:

passwordFrequencyLP.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
        @Override
        public boolean onPreferenceChange(Preference preference, Object newValue) {
            int newFrequency = Integer.valueOf(newValue.toString());

            prefs.edit().putInt("settings_key_password_frequency", newFrequency).commit();

            //get the index of the new value selected in the ListPreference array
            int index = passwordFrequencyLP.findIndexOfValue(String.valueOf(newValue));
            //get the label of the new value selected
            String label = (String) passwordFrequencyLP.getEntries()[index];

            passwordFrequencyLP.setSummary(label);

            makeToast(getResources().getString(R.string.password_frequency_saved));
            return true;
        }
    });

This little trick works well, I found many different possible solutions to this problem but only this one worked for me.