/* Copyright (c) 2009 Christoph Studer <chstuder@gmail.com>
* Copyright (c) 2010 Jan Berkel <jan.berkel@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.zegoggles.smssync.utils;
import android.preference.ListPreference;
import android.preference.Preference;
import android.preference.Preference.OnPreferenceChangeListener;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
public class ListPreferenceHelper {
private ListPreferenceHelper() {
}
public static boolean initListPreference(final ListPreference pref,
final Map<?, ?> fields, boolean keepExisting) {
if (fields.size() > 0) {
final List<CharSequence> e = new ArrayList<CharSequence>();
final List<CharSequence> ev = new ArrayList<CharSequence>();
if (keepExisting) {
if (pref.getEntries() != null) e.addAll(Arrays.asList(pref.getEntries()));
if (pref.getEntryValues() != null) ev.addAll(Arrays.asList(pref.getEntryValues()));
}
for (Map.Entry<?, ?> entry : fields.entrySet()) {
if (entry.getValue() != null && entry.getKey() != null) {
e.add(entry.getValue().toString());
ev.add(entry.getKey().toString());
}
}
pref.setEntries(e.toArray(new CharSequence[e.size()]));
pref.setEntryValues(ev.toArray(new CharSequence[ev.size()]));
}
pref.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
@Override
public boolean onPreferenceChange(Preference preference, final Object newValue) {
pref.setTitle(
pref.getEntries()[
pref.findIndexOfValue(newValue.toString())
]);
return true;
}
});
CharSequence[] entries = pref.getEntries();
boolean enabled = entries != null && entries.length > 0;
pref.setEnabled(enabled);
return enabled;
}
}