Java tutorial
/* * Copyright (C) 2014 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License */ package com.htc.vzwsipservice.incallui; import android.content.ActivityNotFoundException; import android.content.Intent; import android.os.Looper; import android.telecom.InCallService; import android.telecom.PhoneAccountHandle; import com.google.common.base.Preconditions; import com.htc.vzwsipservice.Log; import java.util.List; public final class TelecomAdapter implements InCallServiceListener { private static final String ADD_CALL_MODE_KEY = "add_call_mode"; private static TelecomAdapter sInstance; private InCallService mInCallService; public static TelecomAdapter getInstance() { Preconditions.checkState(Looper.getMainLooper().getThread() == Thread.currentThread()); if (sInstance == null) { sInstance = new TelecomAdapter(); } return sInstance; } private TelecomAdapter() { } @Override public void setInCallService(InCallService inCallService) { mInCallService = inCallService; } @Override public void clearInCallService() { mInCallService = null; } private android.telecom.Call getTelecomCallById(String callId) { Call call = CallList.getInstance().getCallById(callId); return call == null ? null : call.getTelecommCall(); } void answerCall(String callId, int videoState) { android.telecom.Call call = getTelecomCallById(callId); if (call != null) { call.answer(videoState); } else { Log.e(this, "error answerCall, call not in call list: " + callId); } } public void rejectCall(String callId, boolean rejectWithMessage, String message) { android.telecom.Call call = getTelecomCallById(callId); if (call != null) { call.reject(rejectWithMessage, message); } else { Log.e(this, "error rejectCall, call not in call list: " + callId); } } void disconnectCall(String callId) { android.telecom.Call call = getTelecomCallById(callId); if (call != null) { call.disconnect(); } else { Log.e(this, "error disconnectCall, call not in call list " + callId); } } void holdCall(String callId) { android.telecom.Call call = getTelecomCallById(callId); if (call != null) { call.hold(); } else { Log.e(this, "error holdCall, call not in call list " + callId); } } void unholdCall(String callId) { android.telecom.Call call = getTelecomCallById(callId); if (call != null) { call.unhold(); } else { Log.e(this, "error unholdCall, call not in call list " + callId); } } void mute(boolean shouldMute) { if (mInCallService != null) { mInCallService.setMuted(shouldMute); } else { Log.e(this, "error mute, mInCallService is null"); } } void setAudioRoute(int route) { if (mInCallService != null) { mInCallService.setAudioRoute(route); } else { Log.e(this, "error setAudioRoute, mInCallService is null"); } } void separateCall(String callId) { android.telecom.Call call = getTelecomCallById(callId); if (call != null) { call.splitFromConference(); } else { Log.e(this, "error separateCall, call not in call list " + callId); } } void merge(String callId) { android.telecom.Call call = getTelecomCallById(callId); if (call != null) { List<android.telecom.Call> conferenceable = call.getConferenceableCalls(); if (!conferenceable.isEmpty()) { call.conference(conferenceable.get(0)); } else { if (call.getDetails().can(android.telecom.Call.Details.CAPABILITY_MERGE_CONFERENCE)) { call.mergeConference(); } } } else { Log.e(this, "error merge, call not in call list " + callId); } } void swap(String callId) { android.telecom.Call call = getTelecomCallById(callId); if (call != null) { if (call.getDetails().can(android.telecom.Call.Details.CAPABILITY_SWAP_CONFERENCE)) { call.swapConference(); } } else { Log.e(this, "error swap, call not in call list " + callId); } } void addCall() { if (mInCallService != null) { Intent intent = new Intent(Intent.ACTION_DIAL); intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); // when we request the dialer come up, we also want to inform // it that we're going through the "add call" option from the // InCallScreen / PhoneUtils. intent.putExtra(ADD_CALL_MODE_KEY, true); try { Log.d(this, "Sending the add Call intent"); mInCallService.startActivity(intent); } catch (ActivityNotFoundException e) { // This is rather rare but possible. // Note: this method is used even when the phone is encrypted. At that moment // the system may not find any Activity which can accept this Intent. Log.e(this, "Activity for adding calls isn't found.", e); } } } void playDtmfTone(String callId, char digit) { android.telecom.Call call = getTelecomCallById(callId); if (call != null) { call.playDtmfTone(digit); } else { Log.e(this, "error playDtmfTone, call not in call list " + callId); } } void stopDtmfTone(String callId) { android.telecom.Call call = getTelecomCallById(callId); if (call != null) { call.stopDtmfTone(); } else { Log.e(this, "error stopDtmfTone, call not in call list " + callId); } } void postDialContinue(String callId, boolean proceed) { android.telecom.Call call = getTelecomCallById(callId); if (call != null) { call.postDialContinue(proceed); } else { Log.e(this, "error postDialContinue, call not in call list " + callId); } } void phoneAccountSelected(String callId, PhoneAccountHandle accountHandle, boolean setDefault) { if (accountHandle == null) { Log.e(this, "error phoneAccountSelected, accountHandle is null"); // TODO: Do we really want to send null accountHandle? } android.telecom.Call call = getTelecomCallById(callId); if (call != null) { call.phoneAccountSelected(accountHandle, setDefault); } else { Log.e(this, "error phoneAccountSelected, call not in call list " + callId); } } boolean canAddCall() { if (mInCallService != null) { return mInCallService.canAddCall(); } return false; } }