Android emoji集成

就是飞一样的感觉

1、加依赖， 包很小，几乎不占包体积

  //Emoji表情转换成各类可见字符串：https://github.com/vdurmont/emoji-java/
  compile'com.vdurmont:emoji-java:+'

2、上传的文本内容，（带emoji表情)

   URLEncoder.encode(StringUtil.emoji2Unicode(EmojiParser.parseToUnicode(mEditContent.getText().toString().trim())))

 /**
     * 将字符串中的Emoji表情转换成Unicode编码
     * @param src
     * @return
     */
    public static  String emoji2Unicode(String src) {
        StringBuffer unicode = new StringBuffer();

        for (int i = 0; i < src.length(); i++) {
            char c = src.charAt(i);
            int codepoint = src.codePointAt(i);
            if(isEmojiCharacter(codepoint)) {
                unicode.append("\\u").append(Integer.toHexString(c));
            } else {
                unicode.append(c);
            }
        }
        return unicode.toString();
    }

3、显示的文本（带emoji表情）

  StringUtil.unicode2Emoji(item.getTitle())

/**
     * 将Unicode字符转成中文
     * @param src
     * @return
     */
    public static String unicode2Emoji(String src) {
        if (TextUtils.isEmpty(src)) {
            return "";
        }

        StringBuffer retBuf = new StringBuffer();
        int maxLoop = src.length();
        for (int i = 0; i < maxLoop; i++) {
            if (src.charAt(i) == '\\') {
                if ((i < maxLoop - 5) && ((src.charAt(i + 1) == 'u') || (src.charAt(i + 1) == 'U'))) {
                    try {
                        retBuf.append((char) Integer.parseInt(src.substring(i + 2, i + 6), 16));
                        i += 5;
                    } catch (NumberFormatException localNumberFormatException) {
                        retBuf.append(src.charAt(i));
                    }
                } else {
                    retBuf.append(src.charAt(i));
                }
            } else {
                retBuf.append(src.charAt(i));
            }
        }
        return retBuf.toString();
    }