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/*
* Copyright (C) 2015 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.contacts.common.compat.telecom;
import android.os.Build.VERSION;
import android.os.Build.VERSION_CODES;
import android.support.annotation.Nullable;
import android.telecom.PhoneAccountHandle;
import android.telecom.TelecomManager;
import java.lang.reflect.Field;
/** Compatibility class for {@link android.telecom.TelecomManager}. */
public class TelecomManagerCompat {
// Constants from http://cs/android/frameworks/base/telecomm/java/android/telecom/Call.java.
public static final String EVENT_REQUEST_HANDOVER = "android.telecom.event.REQUEST_HANDOVER";
public static final String EXTRA_HANDOVER_PHONE_ACCOUNT_HANDLE =
"android.telecom.extra.HANDOVER_PHONE_ACCOUNT_HANDLE";
public static final String EXTRA_HANDOVER_VIDEO_STATE =
"android.telecom.extra.HANDOVER_VIDEO_STATE";
// This is a hidden constant in android.telecom.DisconnectCause. Telecom sets this as a disconnect
// reason if it wants us to prompt the user that the video call is not available.
// TODO(wangqi): Reference it to constant in android.telecom.DisconnectCause.
public static final String REASON_IMS_ACCESS_BLOCKED = "REASON_IMS_ACCESS_BLOCKED";
/**
* Returns the current SIM call manager. Apps must be prepared for this method to return null,
* indicating that there currently exists no registered SIM call manager.
*
* @param telecomManager the {@link TelecomManager} to use to fetch the SIM call manager.
* @return The phone account handle of the current sim call manager.
*/
@Nullable
public static PhoneAccountHandle getSimCallManager(TelecomManager telecomManager) {
if (telecomManager != null) {
return telecomManager.getSimCallManager();
}
return null;
}
/** Returns true if the Android version supports Handover. */
public static boolean supportsHandover() {
// Starting with Android P, handover is supported via a public API.
if (VERSION.SDK_INT >= VERSION_CODES.P) {
return true;
}
// Handovers are supported from Android O-DR onward. Since there is no API
// bump from O to O-DR, we need to use reflection to check the existence
// of TelecomManager.EXTRA_IS_HANDOVER in
// http://cs/android/frameworks/base/telecomm/java/android/telecom/TelecomManager.java.
try {
Field field = TelecomManager.class.getDeclaredField("EXTRA_IS_HANDOVER");
return "android.telecom.extra.IS_HANDOVER".equals(field.get(null /* obj (static field) */));
} catch (Exception e) {
// Do nothing
}
return false;
}
}
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