SettingsActivity.java 文件源码

/**
 * Helper Class to setup the default Unit Type preference list in code
 */
private void setUpUnitTypePrefs() {
   PreferenceScreen screen = getPreferenceScreen();
   MultiSelectListPreference listPref = new MultiSelectListPreference(super.getActivity());
   listPref.setOrder(0);
   listPref.setDialogTitle(R.string.unit_select_title);
   listPref.setKey(UNIT_TYPE_PREF_KEY);
   listPref.setSummary(R.string.unit_select_summary);
   listPref.setTitle(R.string.unit_select_title);
   listPref.setEntries(getUnitTypeNameArray(getResources()));

   String[] keyArray = getUnitTypeKeyArray(getResources());
   listPref.setEntryValues(keyArray);

   final Set<String> result = new HashSet<>();
   Collections.addAll(result, keyArray);

   listPref.setDefaultValue(result);

   screen.addPreference(listPref);
}