Android开发必备技巧之高效字符串筛选

public static boolean isMatch(String param, String pattern) {
    return param != null && pattern != null && Pattern.compile(pattern).matcher(param).matches();
}

public static boolean isNumber(String param) {
    return param != null && Pattern.compile("[0-9]+").matcher(param).matches();
}
public static boolean isPhone(String param) {
    return param != null && Pattern.compile("^[1][0-9]{10}$").matcher(param).matches();
}

public static List<String> splitWithUpcase(String param) {
    List<String> array = new ArrayList<>();
    if (param == null || param.isEmpty()) {
        return array;
    }
    Pattern pattern = Pattern.compile("[A-Z]{1}[a-z0-9]*");
    Matcher matcher = pattern.matcher(param);
    while (matcher.find()) {
        array.add(matcher.group());
    }
    return array;
}

public static boolean isContainEmoji(String account) {
    int len = account.length();
    boolean isEmoji = false;
    for (int i = 0; i < len; i++) {
        char hs = account.charAt(i);
        if (0xd800 <= hs && hs <= 0xdbff) {
            if (account.length() > 1) {
                char ls = account.charAt(i+1);
                int uc = ((hs - 0xd800) * 0x400) + (ls - 0xdc00) + 0x10000;
                if (0x1d000 <= uc && uc <= 0x1f77f) {
                    return true;
                }
            }
        } else {
            // non surrogate
            if (0x2100 <= hs && hs <= 0x27ff && hs != 0x263b) {
                return true;
            } else if (0x2B05 <= hs && hs <= 0x2b07) {
                return true;
            } else if (0x2934 <= hs && hs <= 0x2935) {
                return true;
            } else if (0x3297 <= hs && hs <= 0x3299) {
                return true;
            } else if (hs == 0xa9 || hs == 0xae || hs == 0x303d || hs == 0x3030 || hs == 0x2b55 || hs == 0x2b1c || hs == 0x2b1b || hs == 0x2b50|| hs == 0x231a ) {
                return true;
            }
            if (!isEmoji && account.length() > 1 && i < account.length() -1) {
                char ls = account.charAt(i+1);
                if (ls == 0x20e3) {
                    return true;
                }
            }
        }
    }
    return  isEmoji;
}