1 /*
2  * Copyright (C) 2015 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.bindings;
18 
19 import android.location.Address;
20 
21 /** Superclass for a helper class to get the current location and distance to other locations. */
22 public interface DistanceHelper {
23 
24   float DISTANCE_NOT_FOUND = -1;
25   float MILES_PER_METER = (float) 0.000621371192;
26   float KILOMETERS_PER_METER = (float) 0.001;
27 
cleanUp()28   void cleanUp();
29 
calculateDistance(Address address)30   float calculateDistance(Address address);
31 
32   interface Listener {
33 
onLocationReady()34     void onLocationReady();
35   }
36 }
37