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

/**
 * defines a multiSelectList preference
 * @param preferenceKey Key of the preference
 * @param registeredObjectNames set containing possible values in the list preference
 * @param intentExtras intent passed to the fragment
 */
private void defineMultiSelectListPrefernece(String preferenceKey, Set<String> registeredObjectNames, Bundle intentExtras) {

    MultiSelectListPreference preference = (MultiSelectListPreference) findPreference(preferenceKey);
    CharSequence[] entries =
            registeredObjectNames.toArray(new CharSequence[registeredObjectNames.size()]);

    preference.setEntries(entries);
    preference.setEntryValues(entries);

    if(intentExtras != null){
        if(intentExtras.getStringArray(preferenceKey) == null){
            preference.setValues(null);
        } else {
            Set<String> selectedCorrections = new HashSet<>(Arrays.asList(intentExtras.getStringArray(preferenceKey)));
            preference.setValues(selectedCorrections);
        }
    } else {
        preference.setValues(new HashSet<String>());
    }
}
 

@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();
  }
}
 

private void setupWeekDaysPref() {
    mPrefWeekDays = (MultiSelectListPreference) findPreference(PREF_KEY_QH_WEEKDAYS);
    String[] days = new DateFormatSymbols(Locale.getDefault()).getWeekdays();
    CharSequence[] entries = new CharSequence[7];
    CharSequence[] entryValues = new CharSequence[7];
    for (int i = 1; i <= 7; i++) {
        entries[i - 1] = days[i];
        entryValues[i - 1] = String.valueOf(i);
    }
    mPrefWeekDays.setEntries(entries);
    mPrefWeekDays.setEntryValues(entryValues);
    if (mPrefs.getStringSet(PREF_KEY_QH_WEEKDAYS, null) == null) {
        Set<String> value = new HashSet<String>(Arrays.asList("2", "3", "4", "5", "6"));
        mPrefs.edit().putStringSet(PREF_KEY_QH_WEEKDAYS, value).commit();
        mPrefWeekDays.setValues(value);
    }
}
 

/**
 * set up protocol selection
 */
void setupElmCmdSelection()
{
	MultiSelectListPreference pref =
		(MultiSelectListPreference) findPreference(ELM_CMD_DISABLE);
	ElmProt.CMD[] values = ElmProt.CMD.values();
	HashSet<String> selections = new HashSet<>();
	CharSequence[] titles = new CharSequence[values.length];
	CharSequence[] keys = new CharSequence[values.length];
	int i = 0;
	for (ElmProt.CMD cmd : values)
	{
		titles[i] = cmd.toString();
		keys[i] = cmd.toString();
		if(!cmd.isEnabled()) selections.add(cmd.toString());
		i++;
	}
	// set enries and keys
	pref.setEntries(titles);
	pref.setEntryValues(keys);
	pref.setValues(selections);
}
 

private void loadGroup() {
    // Consider adding more features here, such as those in Track and TrackPreferenceFragment
    name = (EditTextPreference) findPreference("name");
    name.setText(group.getName());
    name.setSummary(group.getName());

    description = (EditTextPreference) findPreference("description");
    description.setText(group.getDescription());
    description.setSummary(group.getDescription());

    mTracksPref = (MultiSelectListPreference) findPreference("tracks");
    mTracksPref.setValues(getTrackIdsForGroupAsSet(group.getId()));

    mTracksPref.setEntries(getAllTrackNamesAsCharSeq());
    mTracksPref.setEntryValues(getAllTrackIdsAsCharSeq());
    mTracksPref.setSummary(getTrackNamesForSummary());

}
 

/**
 * 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);
}
 

private void fillBuckets() {
    this.bucketNames = PBApplication.getMediaStore().getBucketData();

    final CharSequence[] ids = this.bucketNames.values().toArray(new CharSequence[this.bucketNames.size()]);
    final CharSequence[] names = this.bucketNames.keySet().toArray(new CharSequence[this.bucketNames.size()]);

    final MultiSelectListPreference bucketListPreference = (MultiSelectListPreference) findPreference(PBConstants.PREF_PICTURE_FOLDER_LIST);
    bucketListPreference.setEntries(ids);
    bucketListPreference.setEnabled(true);
    bucketListPreference.setEntryValues(names);

    setSummaries();
}
 

/**
 * set up selection for PIDs
 */
void setupPidSelection()
{
	MultiSelectListPreference itemList =
		(MultiSelectListPreference) findPreference(KEY_DATA_ITEMS);

	// collect data items for selection
	items = ObdProt.dataItems.getSvcDataItems(ObdProt.OBD_SVC_DATA);
	HashSet<String> selections = new HashSet<>();
	CharSequence[] titles = new CharSequence[items.size()];
	CharSequence[] keys = new CharSequence[items.size()];
	// loop through data items
	int i = 0;
	for (EcuDataItem currItem : items)
	{
		titles[i] = currItem.label;
		keys[i] = currItem.toString();
		selections.add(currItem.toString());
		i++;
	}
	// set enries and keys
	itemList.setEntries(titles);
	itemList.setEntryValues(keys);

	// if there is no item selected, mark all as selected
	if (itemList.getValues().size() == 0)
	{
		itemList.setValues(selections);
	}
}
 

@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

        }