| /* |
| * Copyright (C) 2016 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 |
| */ |
| package com.android.providers.blockednumber; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.content.Context; |
| import android.location.Country; |
| import android.location.CountryDetector; |
| import android.telephony.PhoneNumberUtils; |
| import android.text.TextUtils; |
| |
| import java.util.Locale; |
| |
| public class Utils { |
| private Utils() { |
| } |
| |
| public static final int MIN_INDEX_LEN = 8; |
| |
| /** |
| * @return The current country code. |
| */ |
| public static @NonNull String getCurrentCountryIso(@NonNull Context context) { |
| final CountryDetector detector = (CountryDetector) context.getSystemService( |
| Context.COUNTRY_DETECTOR); |
| if (detector != null) { |
| final Country country = detector.detectCountry(); |
| if (country != null) { |
| return country.getCountryIso(); |
| } |
| } |
| final Locale locale = context.getResources().getConfiguration().locale; |
| return locale.getCountry(); |
| } |
| |
| /** |
| * Converts a phone number to an E164 number, assuming the current country. If {@code |
| * incomingE16Number} is provided, it'll just strip it and returns. If the number is not valid, |
| * it'll return "". |
| * |
| * <p>Special case: if {@code rawNumber} contains '@', it's considered as an email address and |
| * returned unmodified. |
| */ |
| public static @NonNull String getE164Number(@NonNull Context context, |
| @Nullable String rawNumber, @Nullable String incomingE16Number) { |
| if (rawNumber != null && rawNumber.contains("@")) { |
| return rawNumber; |
| } |
| if (!TextUtils.isEmpty(incomingE16Number)) { |
| return incomingE16Number; |
| } |
| if (TextUtils.isEmpty(rawNumber)) { |
| return ""; |
| } |
| final String e164 = |
| PhoneNumberUtils.formatNumberToE164(rawNumber, getCurrentCountryIso(context)); |
| return e164 == null ? "" : e164; |
| } |
| |
| public static @Nullable String wrapSelectionWithParens(@Nullable String selection) { |
| return TextUtils.isEmpty(selection) ? null : "(" + selection + ")"; |
| } |
| } |