| /* |
| * 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.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; |
| } |
| |
| /** |
| * 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. |
| */ |
| public static boolean supportsHandover() { |
| // |
| 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; |
| } |
| } |