1 /* 2 3 * Copyright (C) 2011 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package com.android.ex.chips; 19 20 import android.text.TextUtils; 21 22 import java.util.regex.Matcher; 23 import java.util.regex.Pattern; 24 25 /** 26 * A utility class for chips using phone numbers. 27 */ 28 public class PhoneUtil { 29 30 // This pattern comes from android.util.Patterns. It has been tweaked to handle a "1" before 31 // parens, so numbers such as "1 (425) 222-2342" match. 32 private static final Pattern PHONE_PATTERN 33 = Pattern.compile( // sdd = space, dot, or dash 34 "(\\+[0-9]+[\\- \\.]*)?" // +<digits><sdd>* 35 + "(1?[ ]*\\([0-9]+\\)[\\- \\.]*)?" // 1(<digits>)<sdd>* 36 + "([0-9][0-9\\- \\.][0-9\\- \\.]+[0-9])"); // <digit><digit|sdd>+<digit> 37 38 /** 39 * Returns true if the string is a phone number. 40 */ isPhoneNumber(String number)41 public static boolean isPhoneNumber(String number) { 42 // TODO: replace this function with libphonenumber's isPossibleNumber (see 43 // PhoneNumberUtil). One complication is that it requires the sender's region which 44 // comes from the CurrentCountryIso. For now, let's just do this simple match. 45 if (TextUtils.isEmpty(number)) { 46 return false; 47 } 48 49 Matcher match = PHONE_PATTERN.matcher(number); 50 return match.matches(); 51 } 52 } 53