Adding elements dynamically to MultiSelectListPreference

test.java

((EditTextPreference) findPreference("pref_scanning_editdialog"))
.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
	@Override
	public boolean onPreferenceChange(Preference preference, Object newValue) {
		String value = newValue.toString();
		if ( !value.isEmpty() ) {
			// This doesn't seem right
			CharSequence[] entries = list.getEntryValues();
			ArrayList<CharSequence> entryList = new ArrayList<>(Arrays.asList(entries));
			entryList.add(value);
			CharSequence[] newEntries = entryList.toArray(new CharSequence[entryList.size()]);
			list.setEntries(newEntries);
			list.setEntryValues(newEntries);
		}
		return false;
	}
});