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/*
* Copyright (C) 2011 The Android Open Source Project
*
* 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.android.settings.inputmethod;
import com.android.settings.R;
import com.android.settings.SettingsPreferenceFragment;
import com.android.settings.UserDictionarySettings;
import com.android.settings.Utils;
import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.preference.Preference;
import android.preference.PreferenceGroup;
import android.provider.UserDictionary;
import java.util.Locale;
import java.util.Set;
import java.util.TreeSet;
public class UserDictionaryList extends SettingsPreferenceFragment {
private static final String USER_DICTIONARY_SETTINGS_INTENT_ACTION =
"android.settings.USER_DICTIONARY_SETTINGS";
@Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setPreferenceScreen(getPreferenceManager().createPreferenceScreen(getActivity()));
}
static Set<String> getUserDictionaryLocalesList(Activity activity) {
final Cursor cursor = activity.managedQuery(UserDictionary.Words.CONTENT_URI,
new String[] { UserDictionary.Words.LOCALE },
null, null, null);
final Set<String> localeList = new TreeSet<String>();
if (null == cursor) {
// The user dictionary service is not present or disabled. Return null.
return null;
} else if (cursor.moveToFirst()) {
final int columnIndex = cursor.getColumnIndex(UserDictionary.Words.LOCALE);
do {
String locale = cursor.getString(columnIndex);
localeList.add(null != locale ? locale : "");
} while (cursor.moveToNext());
}
localeList.add(Locale.getDefault().toString());
return localeList;
}
/**
* Creates the entries that allow the user to go into the user dictionary for each locale.
* @param userDictGroup The group to put the settings in.
*/
protected void createUserDictSettings(PreferenceGroup userDictGroup) {
final Activity activity = getActivity();
userDictGroup.removeAll();
final Set<String> localeList = UserDictionaryList.getUserDictionaryLocalesList(activity);
if (localeList.isEmpty()) {
userDictGroup.addPreference(createUserDictionaryPreference(null, activity));
} else {
for (String locale : localeList) {
userDictGroup.addPreference(createUserDictionaryPreference(locale, activity));
}
}
}
/**
* Create a single User Dictionary Preference object, with its parameters set.
* @param locale The locale for which this user dictionary is for.
* @return The corresponding preference.
*/
protected Preference createUserDictionaryPreference(String locale, Activity activity) {
final Preference newPref = new Preference(getActivity());
final Intent intent = new Intent(USER_DICTIONARY_SETTINGS_INTENT_ACTION);
if (null == locale) {
newPref.setTitle(Locale.getDefault().getDisplayName());
} else {
if ("".equals(locale))
newPref.setTitle(getString(R.string.user_dict_settings_all_languages));
else
newPref.setTitle(Utils.createLocaleFromString(locale).getDisplayName());
intent.putExtra("locale", locale);
newPref.getExtras().putString("locale", locale);
}
newPref.setIntent(intent);
newPref.setFragment(UserDictionarySettings.class.getName());
return newPref;
}
@Override
public void onResume() {
super.onResume();
createUserDictSettings(getPreferenceScreen());
}
}
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