1/* 2 * Copyright (C) 2017 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 17package androidx.emoji.bundled; 18 19import android.content.Context; 20import android.content.res.AssetManager; 21 22import androidx.annotation.NonNull; 23import androidx.annotation.RequiresApi; 24import androidx.core.util.Preconditions; 25import androidx.emoji.text.EmojiCompat; 26import androidx.emoji.text.MetadataRepo; 27 28/** 29 * {@link EmojiCompat.Config} implementation that loads the metadata using AssetManager and 30 * bundled resources. 31 * <p/> 32 * <pre><code>EmojiCompat.init(new BundledEmojiCompatConfig(context));</code></pre> 33 * 34 * @see EmojiCompat 35 */ 36public class BundledEmojiCompatConfig extends EmojiCompat.Config { 37 38 /** 39 * Default constructor. 40 * 41 * @param context Context instance 42 */ 43 public BundledEmojiCompatConfig(@NonNull Context context) { 44 super(new BundledMetadataLoader(context)); 45 } 46 47 private static class BundledMetadataLoader implements EmojiCompat.MetadataRepoLoader { 48 private final Context mContext; 49 50 private BundledMetadataLoader(@NonNull Context context) { 51 mContext = context.getApplicationContext(); 52 } 53 54 @Override 55 @RequiresApi(19) 56 public void load(@NonNull EmojiCompat.MetadataRepoLoaderCallback loaderCallback) { 57 Preconditions.checkNotNull(loaderCallback, "loaderCallback cannot be null"); 58 final InitRunnable runnable = new InitRunnable(mContext, loaderCallback); 59 final Thread thread = new Thread(runnable); 60 thread.setDaemon(false); 61 thread.start(); 62 } 63 } 64 65 @RequiresApi(19) 66 private static class InitRunnable implements Runnable { 67 private static final String FONT_NAME = "NotoColorEmojiCompat.ttf"; 68 private final EmojiCompat.MetadataRepoLoaderCallback mLoaderCallback; 69 private final Context mContext; 70 71 private InitRunnable(final Context context, 72 final EmojiCompat.MetadataRepoLoaderCallback loaderCallback) { 73 mContext = context; 74 mLoaderCallback = loaderCallback; 75 } 76 77 @Override 78 public void run() { 79 try { 80 final AssetManager assetManager = mContext.getAssets(); 81 final MetadataRepo resourceIndex = MetadataRepo.create(assetManager, FONT_NAME); 82 mLoaderCallback.onLoaded(resourceIndex); 83 } catch (Throwable t) { 84 mLoaderCallback.onFailed(t); 85 } 86 } 87 } 88} 89