Home | History | Annotate | Download | only in data 
      1 /*
      2  * Copyright (C) 2015 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.tv.data;
     18 
     19 import android.content.Context;
     20 import android.media.tv.TvContract.Programs.Genres;
     21 import com.android.tv.R;
     22 
     23 public class GenreItems {
     24     /** Genre ID indicating all channels. */
     25     public static final int ID_ALL_CHANNELS = 0;
     26 
     27     private static final String[] CANONICAL_GENRES = {
     28         null, // All channels
     29         Genres.FAMILY_KIDS,
     30         Genres.SPORTS,
     31         Genres.SHOPPING,
     32         Genres.MOVIES,
     33         Genres.COMEDY,
     34         Genres.TRAVEL,
     35         Genres.DRAMA,
     36         Genres.EDUCATION,
     37         Genres.ANIMAL_WILDLIFE,
     38         Genres.NEWS,
     39         Genres.GAMING,
     40         Genres.ARTS,
     41         Genres.ENTERTAINMENT,
     42         Genres.LIFE_STYLE,
     43         Genres.MUSIC,
     44         Genres.PREMIER,
     45         Genres.TECH_SCIENCE
     46     };
     47 
     48     private GenreItems() {}
     49 
     50     /** Returns array of all genre labels. */
     51     public static String[] getLabels(Context context) {
     52         String[] items = context.getResources().getStringArray(R.array.genre_labels);
     53         if (items.length != CANONICAL_GENRES.length) {
     54             throw new IllegalArgumentException("Genre data mismatch");
     55         }
     56         return items;
     57     }
     58 
     59     /** Returns the number of genres including all channels. */
     60     public static int getGenreCount() {
     61         return CANONICAL_GENRES.length;
     62     }
     63 
     64     /**
     65      * Returns the canonical genre for the given id. If the id is invalid, {@code null} will be
     66      * returned instead.
     67      */
     68     public static String getCanonicalGenre(int id) {
     69         if (id < 0 || id >= CANONICAL_GENRES.length) {
     70             return null;
     71         }
     72         return CANONICAL_GENRES[id];
     73     }
     74 
     75     /**
     76      * Returns id for the given canonical genre. If the genre is invalid, {@link #ID_ALL_CHANNELS}
     77      * will be returned instead.
     78      */
     79     public static int getId(String canonicalGenre) {
     80         if (canonicalGenre == null) {
     81             return ID_ALL_CHANNELS;
     82         }
     83         for (int i = 1; i < CANONICAL_GENRES.length; ++i) {
     84             if (CANONICAL_GENRES[i].equals(canonicalGenre)) {
     85                 return i;
     86             }
     87         }
     88         return ID_ALL_CHANNELS;
     89     }
     90 }
     91