1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.settings.language; 18 19 import android.content.Context; 20 import android.support.v7.preference.Preference; 21 22 import com.android.internal.logging.nano.MetricsProto; 23 import com.android.settings.R; 24 import com.android.settings.core.PreferenceControllerMixin; 25 import com.android.settings.core.SubSettingLauncher; 26 import com.android.settings.localepicker.LocaleListEditor; 27 import com.android.settings.overlay.FeatureFactory; 28 import com.android.settingslib.core.AbstractPreferenceController; 29 30 import java.util.List; 31 32 public class PhoneLanguagePreferenceController extends AbstractPreferenceController 33 implements PreferenceControllerMixin { 34 35 private static final String KEY_PHONE_LANGUAGE = "phone_language"; 36 PhoneLanguagePreferenceController(Context context)37 public PhoneLanguagePreferenceController(Context context) { 38 super(context); 39 } 40 41 @Override isAvailable()42 public boolean isAvailable() { 43 return mContext.getResources().getBoolean(R.bool.config_show_phone_language) 44 && mContext.getAssets().getLocales().length > 1; 45 } 46 47 @Override updateState(Preference preference)48 public void updateState(Preference preference) { 49 if (preference == null) { 50 return; 51 } 52 final String localeNames = FeatureFactory.getFactory(mContext) 53 .getLocaleFeatureProvider().getLocaleNames(); 54 preference.setSummary(localeNames); 55 } 56 57 @Override updateNonIndexableKeys(List<String> keys)58 public void updateNonIndexableKeys(List<String> keys) { 59 // No index needed, because this pref has the same name as the parent page. Indexing it will 60 // make search page look like there are duplicate result, creating confusion. 61 keys.add(getPreferenceKey()); 62 } 63 64 @Override getPreferenceKey()65 public String getPreferenceKey() { 66 return KEY_PHONE_LANGUAGE; 67 } 68 69 @Override handlePreferenceTreeClick(Preference preference)70 public boolean handlePreferenceTreeClick(Preference preference) { 71 if (!KEY_PHONE_LANGUAGE.equals(preference.getKey())) { 72 return false; 73 } 74 new SubSettingLauncher(mContext) 75 .setDestination(LocaleListEditor.class.getName()) 76 .setSourceMetricsCategory(MetricsProto.MetricsEvent.SETTINGS_LANGUAGE_CATEGORY) 77 .setTitle(R.string.pref_title_lang_selection) 78 .launch(); 79 return true; 80 } 81 82 } 83