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      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.settings.core.PreferenceController;
     23 import com.android.settings.overlay.FeatureFactory;
     24 
     25 public class PhoneLanguagePreferenceController extends PreferenceController {
     26 
     27     private static final String KEY_PHONE_LANGUAGE = "phone_language";
     28 
     29     public PhoneLanguagePreferenceController(Context context) {
     30         super(context);
     31     }
     32 
     33     @Override
     34     public boolean isAvailable() {
     35         return mContext.getAssets().getLocales().length > 1;
     36     }
     37 
     38     @Override
     39     public void updateState(Preference preference) {
     40         if (preference == null) {
     41             return;
     42         }
     43         final String localeNames = FeatureFactory.getFactory(mContext)
     44                 .getLocaleFeatureProvider().getLocaleNames();
     45         preference.setSummary(localeNames);
     46     }
     47 
     48     @Override
     49     public String getPreferenceKey() {
     50         return KEY_PHONE_LANGUAGE;
     51     }
     52 }
     53