1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not 5 * use this file except in compliance with the License. You may obtain a copy of 6 * 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, WITHOUT 12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 13 * License for the specific language governing permissions and limitations under 14 * the License 15 */ 16 17 package com.android.providers.contacts; 18 19 import android.content.Context; 20 import android.location.Country; 21 import android.location.CountryDetector; 22 import android.location.CountryListener; 23 import android.os.Looper; 24 25 /** 26 * This class monitors the change of country. 27 * <p> 28 * {@link #getCountryIso()} is used to get the ISO 3166-1 two letters country 29 * code of current country. 30 */ 31 public class CountryMonitor { 32 private String mCurrentCountryIso; 33 private Context mContext; 34 CountryMonitor(Context context)35 public CountryMonitor(Context context) { 36 mContext = context; 37 } 38 39 /** 40 * Get the current country code 41 * 42 * @return the ISO 3166-1 two letters country code of current country. 43 */ getCountryIso()44 public synchronized String getCountryIso() { 45 if (mCurrentCountryIso == null) { 46 final CountryDetector countryDetector = 47 (CountryDetector) mContext.getSystemService(Context.COUNTRY_DETECTOR); 48 mCurrentCountryIso = countryDetector.detectCountry().getCountryIso(); 49 countryDetector.addCountryListener(new CountryListener() { 50 public void onCountryDetected(Country country) { 51 mCurrentCountryIso = country.getCountryIso(); 52 } 53 }, Looper.getMainLooper()); 54 } 55 return mCurrentCountryIso; 56 } 57 } 58