Android U+2764 (❤) Emoji

Android U+2764 (❤) Emoji

Everyone 😍 Emoji. They’re everywhere nowadays -- July 17th is World 🌎 Emoji Day, Oxford Dictionaries 📖 have an Emoji of the Year, and there was even a REAL MOVIE 🎥 made about them. Have you ever wondered 🤔 where they come from and how are they made, or why your iPhone-toting📱 friends keep sending you � in their messages?

In this 💬, we’ll:

* ⏳ Review the origins of Emoji and how they work

* 🔎 Find tips and tricks to best handle Unicode

* 👀 Look under the hood of the Emoji-Compat support library

* 🎓 Learn how to make sure users never see � again

48fd642048ccd225ddaffcada7a6d407?s=128

Michael Evans

August 28, 2018
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Transcript

  1. 2.

    2 Oxford Dictionaries @OxfordWords Oxford Dictionaries Word of the Year

    2015 is… ! http://bit.ly/ 20X5bA4 #OxfordWOTY 16 Nov 2015 287 2K 1K
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    3

  3. 4.

    4 Flavor-Blasted Valerie @valeriehalla i wish the emoji movie was

    a dry documentary about the history of unicode and text encodings 05 Aug 2017 30 481 1K
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    9

  5. 12.

    2010 12 Emoji added to Unicode spec (722 characters) 2011:

    Apple added to iOS 2013: Google added to Android
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  15. 36.

    Java (and Kotlin) 36 String example = "Hello "; for(int

    i = 0; i < example.length(); i++) { char c = example.charAt(i); System.out.printf("Character %d is %c%n", i, c); }
  16. 37.

    Java (and Kotlin) 37 String example = "Hello "; for(int

    i = 0; i < example.length(); i++) { char c = example.charAt(i); System.out.printf("Character %d is %c%n", i, c); } Character 0 is H Character 1 is e Character 2 is l Character 3 is l Character 4 is o Character 5 is Character 6 is ? Character 7 is ?
  17. 38.

    Java (and Kotlin) 38 String example = "Hello "; for(int

    i = 0; i < example.length(); i++) { char c = example.charAt(i); System.out.printf("Character %d is %c%n", i, c); } Character 0 is H Character 1 is e Character 2 is l Character 3 is l Character 4 is o Character 5 is Character 6 is ? Character 7 is ?
  18. 42.

    Surrogate Pairs 42 String example = "Hello "; for(int i

    = 0; i < example.length(); i++) { char c = example.charAt(i); System.out.printf("Character %d is %c%n", i, c); }
  19. 43.

    Surrogate Pairs 43 String example = "Hello "; for(int i

    = 0; i < example.length();) { int codePoint = example.codePointAt(i); System.out.printf("Character %d is %c%n", i, codePoint); i += Character.charCount(codePoint); }
  20. 44.

    Surrogate Pairs 44 String example = "Hello "; for(int i

    = 0; i < example.length();) { int codePoint = example.codePointAt(i); System.out.printf("Character %d is %c%n", i, codePoint); i += Character.charCount(codePoint); } Character 0 is H Character 1 is e Character 2 is l Character 3 is l Character 4 is o Character 5 is Character 6 is
  21. 65.

    65 luis @imliterallyluis I’m gonna start charging y’all if I

    have to watch your android Snapchat story an extra $5 fee if I have to see that ugly laughing samsung emoji 19 Aug 2018 17 56
  22. 66.

    66 kirito blazblue @chainbody genie: you have three wishes me:

    make everyone an android user : : : : “ ” : : 19 Aug 2018 6K 25K
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    68

  25. 73.

    EmojiCompat 73 FontRequest fontRequest = new FontRequest( "com.example.fontprovider", "com.example", "emoji

    compat Font Query", CERTIFICATES); EmojiCompat.Config config = new FontRequestEmojiCompatConfig(this, fontRequest); EmojiCompat.init(config);
  26. 74.

    EmojiCompat 74 FontRequest fontRequest = new FontRequest( "com.example.fontprovider", "com.example", "emoji

    compat Font Query", CERTIFICATES); EmojiCompat.Config config = new FontRequestEmojiCompatConfig(this, fontRequest); EmojiCompat.init(config);
  27. 75.

    EmojiCompat 75 FontRequest fontRequest = new FontRequest( "com.example.fontprovider", "com.example", "emoji

    compat Font Query", CERTIFICATES); EmojiCompat.Config config = new FontRequestEmojiCompatConfig(this, fontRequest); EmojiCompat.init(config);
  28. 76.

    EmojiCompat 76 FontRequest fontRequest = new FontRequest( "com.example.fontprovider", "com.example", "emoji

    compat Font Query", CERTIFICATES); EmojiCompat.Config config = new FontRequestEmojiCompatConfig(this, fontRequest); EmojiCompat.init(config);
  29. 77.

    EmojiCompat 77 FontRequest fontRequest = new FontRequest( "com.example.fontprovider", "com.example", "emoji

    compat Font Query", CERTIFICATES); EmojiCompat.Config config = new FontRequestEmojiCompatConfig(this, fontRequest); EmojiCompat.init(config);
  30. 89.

    EmojiAppCompatTextView 89 public class EmojiAppCompatTextView extends AppCompatTextView { private EmojiTextViewHelper

    mEmojiTextViewHelper; private boolean mInitialized; private void init() { if (!mInitialized) { mInitialized = true; getEmojiTextViewHelper().updateTransformationMethod(); } }
  31. 90.

    EmojiAppCompatTextView 90 public class EmojiAppCompatTextView extends AppCompatTextView { private EmojiTextViewHelper

    mEmojiTextViewHelper; private boolean mInitialized; private void init() { if (!mInitialized) { mInitialized = true; getEmojiTextViewHelper().updateTransformationMethod(); } }
  32. 92.

    EmojiTextViewHelper 92 @Override TransformationMethod wrapTransformationMethod(TransformationMethod transformationMethod) { if (transformationMethod instanceof

    EmojiTransformationMethod) { return transformationMethod; } return new EmojiTransformationMethod(transformationMethod); }
  33. 93.

    EmojiTextViewHelper 93 @Override TransformationMethod wrapTransformationMethod(TransformationMethod transformationMethod) { if (transformationMethod instanceof

    EmojiTransformationMethod) { return transformationMethod; } return new EmojiTransformationMethod(transformationMethod); }
  34. 104.

    BundledEmojiCompatConfig 104 try { final AssetManager assetManager = mContext.getAssets(); final

    MetadataRepo resourceIndex = MetadataRepo.create(assetManager, FONT_NAME); mLoaderCallback.onLoaded(resourceIndex); } catch (Throwable t) { mLoaderCallback.onFailed(t); }
  35. 105.

    BundledEmojiCompatConfig 105 try { final AssetManager assetManager = mContext.getAssets(); final

    MetadataRepo resourceIndex = MetadataRepo.create(assetManager, FONT_NAME); mLoaderCallback.onLoaded(resourceIndex); } catch (Throwable t) { mLoaderCallback.onFailed(t); }
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  39. 113.

    113 Extra emoji metadata is inserted in a binary format

    into the font and is parsed at runtime by EmojiCompat. The data is embedded in the font’s meta table, with the private tag Emji. Fonts “
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    Fonts 118 0001 0000 000d 0080 0003 0050 4342 4454

    2ff6 d6c4 0000 3238 006b f7ae 4342 4c43 1fa6 ad17 006c 29e8 0000 27d4 4753 5542 b3fd 5c33 006c 51bc 0000 5f20 4f53 2f32 7604 67d7 0000 0158 0000 0060 636d 6170 89b8 f62c 0000 1ee0 0000 0de5 6865 6164 0c5c 788b 0000 00dc 0000 0036 6868 6561 1164 0ccb 0000 0114 0000 0024 686d 7478 c142 0000 0000 01b8 0000 1d26 6d61 7870 0a0f 0039 0000 0138 0000 0020 6e61 6d65 755e a57a 0000 2cc8 0000 054e 706f 7374 fb27 0084 0000 3218 0000 0020 7668 6561 0e5e 04cc 006c b0dc 0000 0024 766d 7478
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