82 lines
3.2 KiB
Java
82 lines
3.2 KiB
Java
/*
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* Copyright 2014, The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.server.telecom;
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import android.content.ComponentName;
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import android.content.Context;
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import android.net.Uri;
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import android.telecom.PhoneAccount;
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import android.telecom.PhoneAccountHandle;
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import android.telephony.PhoneNumberUtils;
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import android.telephony.SubscriptionManager;
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import android.telephony.TelephonyManager;
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import com.android.internal.annotations.VisibleForTesting;
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import java.util.Collections;
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import java.util.Comparator;
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import java.util.List;
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/**
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* Utilities to deal with the system telephony services. The system telephony services are treated
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* differently from 3rd party services in some situations (emergency calls, audio focus, etc...).
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*/
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public final class TelephonyUtil {
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private static final String TELEPHONY_PACKAGE_NAME = "com.android.phone";
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private static final String PSTN_CALL_SERVICE_CLASS_NAME =
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"com.android.services.telephony.TelephonyConnectionService";
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private static final PhoneAccountHandle DEFAULT_EMERGENCY_PHONE_ACCOUNT_HANDLE =
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new PhoneAccountHandle(
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new ComponentName(TELEPHONY_PACKAGE_NAME, PSTN_CALL_SERVICE_CLASS_NAME), "E");
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private TelephonyUtil() {}
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/**
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* @return fallback {@link PhoneAccount} to be used by Telecom for emergency calls in the
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* rare case that Telephony has not registered any phone accounts yet. Details about this
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* account are not expected to be displayed in the UI, so the description, etc are not
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* populated.
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*/
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@VisibleForTesting
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public static PhoneAccount getDefaultEmergencyPhoneAccount() {
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return PhoneAccount.builder(DEFAULT_EMERGENCY_PHONE_ACCOUNT_HANDLE, "E")
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.setCapabilities(PhoneAccount.CAPABILITY_SIM_SUBSCRIPTION |
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PhoneAccount.CAPABILITY_CALL_PROVIDER |
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PhoneAccount.CAPABILITY_PLACE_EMERGENCY_CALLS)
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.setIsEnabled(true)
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.build();
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}
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static boolean isPstnComponentName(ComponentName componentName) {
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final ComponentName pstnComponentName = new ComponentName(
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TELEPHONY_PACKAGE_NAME, PSTN_CALL_SERVICE_CLASS_NAME);
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return pstnComponentName.equals(componentName);
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}
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public static boolean shouldProcessAsEmergency(Context context, Uri handle) {
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try {
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TelephonyManager tm = (TelephonyManager) context.getSystemService(
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Context.TELEPHONY_SERVICE);
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return handle != null && tm.isEmergencyNumber(handle.getSchemeSpecificPart());
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} catch (IllegalStateException ise) {
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return false;
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}
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}
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}
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