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 17 package com.example.android.emojicompat; 18 19 import android.content.Context; 20 import android.os.Bundle; 21 import android.support.text.emoji.EmojiCompat; 22 import android.support.v7.app.AppCompatActivity; 23 import android.widget.TextView; 24 25 import java.lang.ref.WeakReference; 26 27 28 public class MainActivity extends AppCompatActivity { 29 30 // [U+1F469] (WOMAN) + [U+200D] (ZERO WIDTH JOINER) + [U+1F4BB] (PERSONAL COMPUTER) 31 private static final String WOMAN_TECHNOLOGIST = "\uD83D\uDC69\u200D\uD83D\uDCBB"; 32 33 // [U+1F469] (WOMAN) + [U+200D] (ZERO WIDTH JOINER) + [U+1F3A4] (MICROPHONE) 34 private static final String WOMAN_SINGER = "\uD83D\uDC69\u200D\uD83C\uDFA4"; 35 36 static final String EMOJI = WOMAN_TECHNOLOGIST + " " + WOMAN_SINGER; 37 38 @Override 39 protected void onCreate(Bundle savedInstanceState) { 40 super.onCreate(savedInstanceState); 41 setContentView(R.layout.activity_main); 42 43 // TextView variant provided by EmojiCompat library 44 final TextView emojiTextView = findViewById(R.id.emoji_text_view); 45 emojiTextView.setText(getString(R.string.emoji_text_view, EMOJI)); 46 47 // EditText variant provided by EmojiCompat library 48 final TextView emojiEditText = findViewById(R.id.emoji_edit_text); 49 emojiEditText.setText(getString(R.string.emoji_edit_text, EMOJI)); 50 51 // Button variant provided by EmojiCompat library 52 final TextView emojiButton = findViewById(R.id.emoji_button); 53 emojiButton.setText(getString(R.string.emoji_button, EMOJI)); 54 55 // Regular TextView without EmojiCompat support; you have to manually process the text 56 final TextView regularTextView = findViewById(R.id.regular_text_view); 57 EmojiCompat.get().registerInitCallback(new InitCallback(regularTextView)); 58 59 // Custom TextView 60 final TextView customTextView = findViewById(R.id.emoji_custom_text_view); 61 customTextView.setText(getString(R.string.custom_text_view, EMOJI)); 62 } 63 64 private static class InitCallback extends EmojiCompat.InitCallback { 65 66 private final WeakReference<TextView> mRegularTextViewRef; 67 68 InitCallback(TextView regularTextView) { 69 mRegularTextViewRef = new WeakReference<>(regularTextView); 70 } 71 72 @Override 73 public void onInitialized() { 74 final TextView regularTextView = mRegularTextViewRef.get(); 75 if (regularTextView != null) { 76 final EmojiCompat compat = EmojiCompat.get(); 77 final Context context = regularTextView.getContext(); 78 regularTextView.setText( 79 compat.process(context.getString(R.string.regular_text_view, EMOJI))); 80 } 81 } 82 83 } 84 85 } 86
