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      1 /*
      2  * Copyright (C) 2014 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;
     18 
     19 import android.telecom.InCallService;
     20 
     21 /**
     22  * Interface implemented by In-Call components that maintain a reference to the Telecomm API
     23  * {@code InCallService} object. Clarifies the expectations associated with the relevant method
     24  * calls.
     25  */
     26 public interface InCallServiceListener {
     27 
     28     /**
     29      * Called once at {@code InCallService} startup time with a valid instance. At
     30      * that time, there will be no existing {@code Call}s.
     31      *
     32      * @param inCallService The {@code InCallService} object.
     33      */
     34     void setInCallService(InCallService inCallService);
     35 
     36     /**
     37      * Called once at {@code InCallService} shutdown time. At that time, any {@code Call}s
     38      * will have transitioned through the disconnected state and will no longer exist.
     39      */
     40     void clearInCallService();
     41 }
     42