1 /* 2 * Copyright 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.car.media; 18 19 import android.annotation.StringDef; 20 21 import java.lang.annotation.Retention; 22 import java.lang.annotation.RetentionPolicy; 23 24 /** 25 * Constants shared by SDK and 3rd party media apps to extend the media APIs in order to accommodate 26 * car-specific requirements. 27 * These constants are also shared with Android Auto Projected. They will be moved to the Car 28 * Support Library on b/76108793. 29 * Please refer to <a href="https://developer.android.com/training/auto/audio/index.html">Providing 30 * Audio Playback for Auto</a> for a detailed explanation. 31 */ 32 public class MediaConstants { 33 /** 34 * Action along with the media connection broadcast, which contains the current media 35 * connection status. 36 */ 37 public static final String ACTION_MEDIA_STATUS = "com.google.android.gms.car.media.STATUS"; 38 39 /** 40 * Key for media connection status in extra. 41 */ 42 public static final String MEDIA_CONNECTION_STATUS = "media_connection_status"; 43 44 @Retention(RetentionPolicy.SOURCE) 45 @StringDef({MEDIA_CONNECTED, MEDIA_DISCONNECTED}) 46 public @interface ConnectionType {} 47 48 /** 49 * Type of connection status: current media is connected. 50 */ 51 public static final String MEDIA_CONNECTED = "media_connected"; 52 53 /** 54 * Type of connection status: current media is disconnected. 55 */ 56 public static final String MEDIA_DISCONNECTED = "media_disconnected"; 57 58 /** 59 * Key for extra feedback message in extra. 60 */ 61 public static final String EXTRA_CUSTOM_ACTION_STATUS = "media_custom_action_status"; 62 63 /** 64 * Extra along with the Media Session, which contains if the slot of the action should be 65 * always reserved for the queue action. 66 */ 67 public static final String EXTRA_RESERVED_SLOT_QUEUE = 68 "com.google.android.gms.car.media.ALWAYS_RESERVE_SPACE_FOR.ACTION_QUEUE"; 69 70 /** 71 * Extra along with the Media Session, which contains if the slot of the action should be 72 * always reserved for the skip to previous action. 73 */ 74 public static final String EXTRA_RESERVED_SLOT_SKIP_TO_PREVIOUS = 75 "com.google.android.gms.car.media.ALWAYS_RESERVE_SPACE_FOR.ACTION_SKIP_TO_PREVIOUS"; 76 77 /** 78 * Extra along with the Media Session, which contains if the slot of the action should be 79 * always reserved for the skip to next action. 80 */ 81 public static final String EXTRA_RESERVED_SLOT_SKIP_TO_NEXT = 82 "com.google.android.gms.car.media.ALWAYS_RESERVE_SPACE_FOR.ACTION_SKIP_TO_NEXT"; 83 84 /** 85 * Extra along with custom action playback state to indicate a repeated action. 86 */ 87 public static final String EXTRA_REPEATED_CUSTOM_ACTION_BUTTON = 88 "com.google.android.gms.car.media.CUSTOM_ACTION.REPEATED_ACTIONS"; 89 90 /** 91 * Extra along with custom action playback state to indicate a repeated custom action button 92 * state. 93 */ 94 public static final String EXTRA_REPEATED_CUSTOM_ACTION_BUTTON_ON_DOWN = 95 "com.google.android.gms.car.media.CUSTOM_ACTION.ON_DOWN_EVENT"; 96 97 /** 98 * Extra along with metadata to indicate whether this audio is advertisement. 99 */ 100 public static final String EXTRA_METADATA_ADVERTISEMENT = 101 "android.media.metadata.ADVERTISEMENT"; 102 } 103
