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 android.telephony; 18 19 import android.annotation.PrivateApi; 20 21 /** @hide */ 22 @PrivateApi 23 public interface CallStateListener { 24 /** 25 * Notify of a new or updated call. 26 * Any time the state of a call is updated, it will alert any listeners. This includes changes 27 * of state such as when a call is put on hold or conferenced. 28 * 29 * @param callId a unique ideCntifier for a given call that can be used to track state changes 30 * @param state the new state of the call. 31 * {@see com.android.services.telephony.common.Call$State} 32 * @param number the phone number of the call. For some states, this may be blank. However, it 33 * will be populated for any initial state. 34 */ 35 public void onCallStateChanged(int callId, int state, String number); 36 } 37
