package cn.sinata.xldutils.utils;
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import android.text.TextUtils;
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import java.util.Collection;
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import java.util.Locale;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import java.util.regex.PatternSyntaxException;
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/**
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* Created by LiaoXiang on 2015/11/18.
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*/
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public class StringUtils {
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/**
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* 是否为空字符或null
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*
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* @param str
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* @return
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*/
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public static boolean isEmpty(CharSequence str) {
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return TextUtils.isEmpty(str) || TextUtils.equals(str, "null");
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}
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public static boolean isNull(CharSequence str) {
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return str == null || TextUtils.equals(str, "null");
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}
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/**
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* 检查字符串是否为电话号码的方法,并返回true or false的判断值
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*/
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public static boolean isPhoneNumberValid(String phoneNumber) {
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boolean isValid = false;
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if (TextUtils.isEmpty(phoneNumber) || phoneNumber.length() != 11) {
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return false;
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}
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String expression = "(^(1[3-9])[0-9]{9}$)";
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// String expression = "^((13[0-9])|(14[4,5,7])|(15[0-3,5-9])|(17[0,3,5-8])|(18[0-9])|166|198|199)\\d{8}$";
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Pattern pattern = Pattern.compile(expression);
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Matcher matcher = pattern.matcher(phoneNumber);
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if (matcher.matches()) {
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isValid = true;
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}
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return isValid;
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}
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/**
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* 判断邮箱格式是否有效
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*
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* @param email 邮箱地址
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* @return true 是正确格式
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*/
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public static boolean isEmailValid(String email) {
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boolean isValid = false;
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// String expression = "^([a-z0-9A-Z]+[-|\\\\.]?)+[a-z0-9A-Z]@([a-z0-9A-Z]+(-[a-z0-9A-Z]+)?\\\\.)+[a-zA-Z]{2,}$";
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Pattern pattern = Pattern.compile("^([a-zA-Z0-9_\\-\\.]+)@((\\[[0-9]{1,3}\\.[0-9]{1,3}\\.[0-9]{1,3}\\.)|(([a-zA-Z0-9\\-]+\\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\\]?)$");
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Matcher matcher = pattern.matcher(email);
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if (matcher.matches()) {
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isValid = true;
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}
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return isValid;
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}
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public static String stringFilter(String str) throws PatternSyntaxException {
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String regEx = "[\n\t]"; //要过滤掉的字符
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Pattern p = Pattern.compile(regEx);
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Matcher m = p.matcher(str);
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return m.replaceAll("").trim();
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}
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/**
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* 隐藏手机号展示
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*
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* @param phone 手机号
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* @return
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*/
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public static String hidePhoneNumber(String phone) {
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if (TextUtils.isEmpty(phone)) {
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return phone;
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}
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if (phone.length() < 7) {
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return phone;
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}
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return phone.substring(0, 3) +
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"****" +
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phone.substring(phone.length() - 4, phone.length());
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}
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public static String hideCarNumber(String carNum) {
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if (TextUtils.isEmpty(carNum)) {
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return carNum;
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}
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if (carNum.length() < 5) {
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return carNum;
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}
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return carNum.substring(0, 2) +
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"***" +
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carNum.substring(carNum.length() - 3, carNum.length());
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}
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public static String hideIDCardNumber(String idCardNum) {
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if (TextUtils.isEmpty(idCardNum)) {
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return idCardNum;
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}
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if (idCardNum.length() < 10) {
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return idCardNum;
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}
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return idCardNum.substring(0, 6) +
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"********" +
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idCardNum.substring(idCardNum.length() - 4, idCardNum.length());
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}
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public static boolean isEmpty(Collection collection) {
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return null == collection || collection.isEmpty();
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}
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public static String formatMoneyString(String s, double money) {
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return String.format(Locale.CHINA, s, money);
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}
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}
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