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.car.cluster.sample; 18 19 import static com.android.car.cluster.sample.DebugUtil.DEBUG; 20 21 import android.content.Intent; 22 import android.os.Binder; 23 import android.os.IBinder; 24 import android.telecom.Call; 25 import android.telecom.Call.Callback; 26 import android.telecom.InCallService; 27 import android.util.Log; 28 29 import java.lang.ref.WeakReference; 30 31 /** 32 * Monitors call state and reports it to the listeners that was registered using 33 * {@link #registerListener} method. 34 */ 35 public class ClusterInCallService extends InCallService { 36 37 private static final String TAG = DebugUtil.getTag(ClusterInCallService.class); 38 39 static final String ACTION_LOCAL_BINDING = "local_binding"; 40 41 private final PhoneCallback mPhoneCallback = new PhoneCallback(this); 42 private volatile Callback mListener; 43 44 @Override 45 public void onCallAdded(Call call) { 46 if (DEBUG) { 47 Log.d(TAG, "onCallAdded"); 48 } 49 call.registerCallback(mPhoneCallback); 50 mPhoneCallback.onStateChanged(call, call.getState()); 51 } 52 53 @Override 54 public void onCallRemoved(Call call) { 55 if (DEBUG) { 56 Log.d(TAG, "onCallRemoved"); 57 } 58 call.unregisterCallback(mPhoneCallback); 59 } 60 61 private void doStateChanged(Call call, int state) { 62 if (DEBUG) { 63 Log.d(TAG, "doStateChanged, call: " + call + ", state: " + state); 64 } 65 if (mListener != null) { 66 mListener.onStateChanged(call, state); 67 } 68 } 69 70 @Override 71 public IBinder onBind(Intent intent) { 72 Log.d(TAG, "onBind, intent:" + intent); 73 return ACTION_LOCAL_BINDING.equals(intent.getAction()) 74 ? new LocalBinder() : super.onBind(intent); 75 } 76 77 public class LocalBinder extends Binder { 78 ClusterInCallService getService() { 79 return ClusterInCallService.this; 80 } 81 } 82 83 public void registerListener(Callback listener) { 84 Log.d(TAG, "registerListener, listener: " + listener); 85 mListener = listener; 86 } 87 88 private static class PhoneCallback extends Callback { 89 private final WeakReference<ClusterInCallService> mServiceRef; 90 91 private PhoneCallback(ClusterInCallService service) { 92 mServiceRef = new WeakReference<>(service); 93 } 94 95 @Override 96 public void onStateChanged(Call call, int state) { 97 Log.d(TAG, "PhoneCallback#onStateChanged, call: " + call + ", state: " + state); 98 ClusterInCallService service = mServiceRef.get(); 99 if (service != null) { 100 service.doStateChanged(call, state); 101 } 102 } 103 } 104 } 105
