android.preference.MultiSelectListPreference#setDefaultValue ( )源码实例Demo

@Override
public void onCreate(Bundle savedInstanceState) {
  try {
    super.onCreate(savedInstanceState);
    // Load the preferences screen from an XML resource
    addPreferencesFromResource(R.xml.preferences);
    String[] pickerKeys = { PreferenceUtils.TRUST_STORE_LOCATION_KEY, PreferenceUtils.KEY_STORE_LOCATION_KEY };
    for (String key: pickerKeys) {
      FilechoserEditTextPreference picker = (FilechoserEditTextPreference) findPreference(key);
      picker.setFragment(this);
    }
    PreferenceScreen pref = (PreferenceScreen) findPreference("pref_security");
    if (SUPPORTED_CIPHER_SUITES.isEmpty()) {
      SSLSocketFactory ssf = (SSLSocketFactory) SSLSocketFactory.getDefault();
      ENABLED_CIPHER_SUITES.addAll(Arrays.asList(ssf.getDefaultCipherSuites()));
      SUPPORTED_CIPHER_SUITES.addAll(Arrays.asList(ssf.getSupportedCipherSuites()));
    }
    MultiSelectListPreference ciphersPref = (MultiSelectListPreference) findPreference(PreferenceUtils.ENABLED_CIPHER_SUITES_KEY);
    ciphersPref.setDefaultValue(ENABLED_CIPHER_SUITES.toArray(new String[ENABLED_CIPHER_SUITES.size()]));
    ciphersPref.setEntryValues(SUPPORTED_CIPHER_SUITES.toArray(new String[SUPPORTED_CIPHER_SUITES.size()]));
    ciphersPref.setEntries(SUPPORTED_CIPHER_SUITES.toArray(new String[SUPPORTED_CIPHER_SUITES.size()]));
  } catch(Throwable t) {
    t.printStackTrace();
  }
}
 

/**
 * 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);
}
 

@Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);

            addPreferencesFromResource(R.xml.preferences);
            
            String[] selections = getResources().getStringArray(R.array.sources_news_values);
            Set<String> selectionSet = new HashSet<String>();
            selectionSet.addAll(Arrays.asList(selections));

            MultiSelectListPreference multiSelectPref = new MultiSelectListPreference(getActivity());
            multiSelectPref.setKey("multi_pref");
            multiSelectPref.setTitle(CHOIX_DES_SOURCES);
            multiSelectPref.setEntries(R.array.sources_news);
            multiSelectPref.setEntryValues(R.array.sources_news_values);
            multiSelectPref.setDefaultValue(selectionSet);
            getPreferenceScreen().addPreference(multiSelectPref);





            // Make sure default values are applied.  In a real app, you would
            // want this in a shared function that is used to retrieve the
            // SharedPreferences wherever they are needed.
//            PreferenceManager.setDefaultValues(getActivity(),R.xml.advanced_preferences, false);

            // Load the preferences from an XML resource

        }