1 /* 2 * Copyright (C) 2017 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.incallui.calllocation.impl; 18 19 import android.content.Context; 20 import android.support.annotation.MainThread; 21 import android.support.annotation.NonNull; 22 import android.support.v4.app.Fragment; 23 import com.android.dialer.common.Assert; 24 import com.android.incallui.calllocation.CallLocation; 25 import javax.inject.Inject; 26 27 /** Uses Google Play Services to show the user's location during an emergency call. */ 28 public class CallLocationImpl implements CallLocation { 29 30 private LocationHelper locationHelper; 31 private LocationFragment locationFragment; 32 33 @Inject CallLocationImpl()34 public CallLocationImpl() {} 35 36 @MainThread 37 @Override canGetLocation(@onNull Context context)38 public boolean canGetLocation(@NonNull Context context) { 39 Assert.isMainThread(); 40 return LocationHelper.canGetLocation(context); 41 } 42 43 @MainThread 44 @NonNull 45 @Override getLocationFragment(@onNull Context context)46 public Fragment getLocationFragment(@NonNull Context context) { 47 Assert.isMainThread(); 48 if (locationFragment == null) { 49 locationFragment = new LocationFragment(); 50 locationHelper = new LocationHelper(context); 51 locationHelper.addLocationListener(locationFragment.getPresenter()); 52 } 53 return locationFragment; 54 } 55 56 @MainThread 57 @Override close()58 public void close() { 59 Assert.isMainThread(); 60 if (locationFragment != null) { 61 locationHelper.removeLocationListener(locationFragment.getPresenter()); 62 locationHelper.close(); 63 locationFragment = null; 64 locationHelper = null; 65 } 66 } 67 } 68