1 /* 2 * Copyright (C) 2016 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.ims; 18 19 import android.telephony.ims.ImsExternalCallState; 20 21 import java.util.List; 22 import java.util.concurrent.Executor; 23 24 /** 25 * Listener for receiving notifications about {@link ImsExternalCallState} information received 26 * from the network via a dialog event package. 27 * 28 * @hide 29 */ 30 public abstract class ImsExternalCallStateListener { 31 protected Executor mListenerExecutor = Runnable::run; 32 /** 33 * constructor. 34 * 35 * @param executor the executor that will execute callbacks. 36 */ ImsExternalCallStateListener(Executor executor)37 public ImsExternalCallStateListener(Executor executor) { 38 if (executor != null) 39 mListenerExecutor = executor; 40 } 41 /** 42 * Notifies client when Dialog Event Package update is received 43 * 44 * @param externalCallState the external call state. 45 */ onImsExternalCallStateUpdate(List<ImsExternalCallState> externalCallState)46 public final void onImsExternalCallStateUpdate(List<ImsExternalCallState> externalCallState) { 47 onImsExternalCallStateUpdate(externalCallState, mListenerExecutor); 48 } 49 /** 50 * Notifies client when Dialog Event Package update is received 51 * 52 * @param externalCallState the external call state. 53 * 54 * @param executor the executor that will execute callbacks. 55 */ onImsExternalCallStateUpdate( List<ImsExternalCallState> externalCallState, Executor executor)56 public abstract void onImsExternalCallStateUpdate( 57 List<ImsExternalCallState> externalCallState, Executor executor); 58 } 59