1 /*
2  * Copyright (C) 2016 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License
15  */
16 
17 package com.android.server.telecom.settings;
18 
19 import android.content.Context;
20 import android.telephony.PhoneNumberUtils;
21 import android.text.Spannable;
22 import android.text.SpannableString;
23 import android.widget.Toast;
24 import com.android.server.telecom.R;
25 
26 import java.util.Locale;
27 
28 public final class BlockedNumbersUtil {
BlockedNumbersUtil()29     private BlockedNumbersUtil() {}
30 
31     /**
32      * @return locale and default to US if no locale was returned.
33      */
getLocaleDefaultToUS()34     public static String getLocaleDefaultToUS() {
35         String countryIso = Locale.getDefault().getCountry();
36         if (countryIso == null || countryIso.length() != 2) {
37             countryIso = "US";
38         }
39         return countryIso;
40     }
41 
42     /**
43      * Formats the number in the string and shows a toast for {@link Toast#LENGTH_SHORT}.
44      *
45      * <p>Adds the number in a TsSpan so that it reads as a phone number when talk back is on.
46      */
showToastWithFormattedNumber(Context context, int stringId, String number)47     public static void showToastWithFormattedNumber(Context context, int stringId, String number) {
48         String formattedNumber = PhoneNumberUtils.formatNumber(number, getLocaleDefaultToUS());
49         String finalFormattedNumber = formattedNumber == null ? number : formattedNumber;
50         String message = context.getString(stringId, finalFormattedNumber);
51         int startingPosition = message.indexOf(finalFormattedNumber);
52         Spannable messageSpannable = new SpannableString(message);
53         PhoneNumberUtils.addTtsSpan(messageSpannable, startingPosition,
54                 startingPosition + finalFormattedNumber.length());
55         Toast.makeText(
56                 context,
57                 messageSpannable,
58                 Toast.LENGTH_SHORT).show();
59     }
60 }
61