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/*
* Copyright 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.android.server.telecom;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.content.res.Resources;
import android.net.Uri;
import android.telecom.InCallService;
import android.telecom.PhoneAccount;
import android.telecom.PhoneAccountHandle;
import android.telephony.PhoneNumberUtils;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
/**
* Utilities to deal with the system telephony services. The system telephony services are treated
* differently from 3rd party services in some situations (emergency calls, audio focus, etc...).
*/
public final class TelephonyUtil {
private static final String TELEPHONY_PACKAGE_NAME = "com.android.phone";
private static final String PSTN_CALL_SERVICE_CLASS_NAME =
"com.android.services.telephony.TelephonyConnectionService";
private static final PhoneAccountHandle DEFAULT_EMERGENCY_PHONE_ACCOUNT_HANDLE =
new PhoneAccountHandle(
new ComponentName(TELEPHONY_PACKAGE_NAME, PSTN_CALL_SERVICE_CLASS_NAME), "E");
private TelephonyUtil() {}
/**
* @return fallback {@link PhoneAccount} to be used by Telecom for emergency calls in the
* rare case that Telephony has not registered any phone accounts yet. Details about this
* account are not expected to be displayed in the UI, so the description, etc are not
* populated.
*/
static PhoneAccount getDefaultEmergencyPhoneAccount() {
return PhoneAccount.builder(DEFAULT_EMERGENCY_PHONE_ACCOUNT_HANDLE, "E")
.setCapabilities(PhoneAccount.CAPABILITY_SIM_SUBSCRIPTION |
PhoneAccount.CAPABILITY_CALL_PROVIDER |
PhoneAccount.CAPABILITY_PLACE_EMERGENCY_CALLS)
.setIsEnabled(true)
.build();
}
static boolean isPstnComponentName(ComponentName componentName) {
final ComponentName pstnComponentName = new ComponentName(
TELEPHONY_PACKAGE_NAME, PSTN_CALL_SERVICE_CLASS_NAME);
return pstnComponentName.equals(componentName);
}
public static boolean shouldProcessAsEmergency(Context context, Uri handle) {
return handle != null && PhoneNumberUtils.isLocalEmergencyNumber(
context, handle.getSchemeSpecificPart());
}
static ComponentName getDialerComponentName(Context context) {
Resources resources = context.getResources();
PackageManager packageManager = context.getPackageManager();
Intent i = new Intent(Intent.ACTION_DIAL);
List<ResolveInfo> resolveInfo = packageManager.queryIntentActivities(i, 0);
List<String> entries = Arrays.asList(resources.getStringArray(
R.array.dialer_default_classes));
for (ResolveInfo info : resolveInfo) {
ComponentName componentName = new ComponentName(info.activityInfo.packageName,
info.activityInfo.name);
if (entries.contains(componentName.flattenToString())) {
return componentName;
}
}
return null;
}
static ComponentName getInCallComponentName(Context context) {
Resources resources = context.getResources();
PackageManager packageManager = context.getPackageManager();
Intent i = new Intent(InCallService.SERVICE_INTERFACE);
List<ResolveInfo> resolveInfo = packageManager.queryIntentServices(i, 0);
List<String> entries = Arrays.asList(resources.getStringArray(
R.array.incall_default_classes));
for (ResolveInfo info : resolveInfo) {
ComponentName componentName = new ComponentName(info.serviceInfo.packageName,
info.serviceInfo.name);
if (entries.contains(componentName.flattenToString())) {
return componentName;
}
}
return null;
}
}
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