1 /* 2 * Copyright (C) 2013 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 package com.android.contacts.util; 17 18 import android.content.Context; 19 import android.telephony.TelephonyManager; 20 import android.util.Log; 21 22 import java.util.Locale; 23 24 /** 25 * This class provides several TelephonyManager util functions. 26 */ 27 public class TelephonyManagerUtils { 28 29 private static final String LOG_TAG = TelephonyManagerUtils.class.getSimpleName(); 30 31 /** 32 * Gets the voicemail tag from Telephony Manager. 33 * @param context Current application context 34 * @return Voicemail tag, the alphabetic identifier associated with the voice mail number. 35 */ getVoiceMailAlphaTag(Context context)36 public static String getVoiceMailAlphaTag(Context context) { 37 final TelephonyManager telephonyManager = 38 (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE); 39 final String voiceMailLabel = telephonyManager.getVoiceMailAlphaTag(); 40 return voiceMailLabel; 41 } 42 43 /** 44 * @return The ISO 3166-1 two letters country code of the country the user 45 * is in based on the network location. If the network location does not exist, fall 46 * back to the locale setting. 47 */ getCurrentCountryIso(Context context, Locale locale)48 public static String getCurrentCountryIso(Context context, Locale locale) { 49 // Without framework function calls, this seems to be the most accurate location service 50 // we can rely on. 51 final TelephonyManager telephonyManager = 52 (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE); 53 String countryIso = telephonyManager.getNetworkCountryIso().toUpperCase(); 54 55 if (countryIso == null) { 56 countryIso = locale.getCountry(); 57 Log.w(LOG_TAG, "No CountryDetector; falling back to countryIso based on locale: " 58 + countryIso); 59 } 60 return countryIso; 61 } 62 63 /** 64 * @param context Current application context. 65 * @return True if there is a subscription which supports video calls. False otherwise. 66 */ hasVideoCallSubscription(Context context)67 public static boolean hasVideoCallSubscription(Context context) { 68 // TODO: Check the telephony manager's subscriptions to see if any support video calls. 69 return true; 70 } 71 } 72