Main.java Source code

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Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (C) 2013 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import android.telephony.PhoneNumberUtils;

public class Main {
    /**
     * Normalize a phone number by removing the characters other than digits. If
     * the given number has keypad letters, the letters will be converted to
     * digits first.
     *
     * @param phoneNumber The number to be normalized.
     * @return The normalized number.
     *
     * TODO: Remove if PhoneNumberUtils.normalizeNumber(String phoneNumber) is made public.
     */
    public static String normalizeNumber(String phoneNumber) {
        StringBuilder sb = new StringBuilder();
        int len = phoneNumber.length();
        for (int i = 0; i < len; i++) {
            char c = phoneNumber.charAt(i);
            // Character.digit() supports ASCII and Unicode digits (fullwidth, Arabic-Indic, etc.)
            int digit = Character.digit(c, 10);
            if (digit != -1) {
                sb.append(digit);
            } else if (i == 0 && c == '+') {
                sb.append(c);
            } else if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')) {
                return normalizeNumber(PhoneNumberUtils.convertKeypadLettersToDigits(phoneNumber));
            }
        }
        return sb.toString();
    }
}