1 /* 2 * Copyright (C) 2020 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 package com.android.settings.media; 17 18 import android.media.session.MediaController; 19 import android.media.session.MediaSessionManager; 20 import android.media.session.PlaybackState; 21 import android.text.TextUtils; 22 import android.util.Log; 23 24 import androidx.annotation.Nullable; 25 26 import com.android.settings.sound.MediaOutputPreferenceController; 27 28 import java.util.ArrayList; 29 import java.util.List; 30 31 /** 32 * Utilities that can be shared between {@link MediaOutputIndicatorWorker} and 33 * {@link MediaOutputPreferenceController}. 34 */ 35 public class MediaOutputUtils { 36 37 private static final String TAG = "MediaOutputUtils"; 38 private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG); 39 40 /** 41 * Returns a {@link MediaController} that state is playing and type is local playback, 42 * and also have active sessions. 43 */ 44 @Nullable getActiveLocalMediaController( MediaSessionManager mediaSessionManager)45 public static MediaController getActiveLocalMediaController( 46 MediaSessionManager mediaSessionManager) { 47 48 MediaController localController = null; 49 final List<String> remoteMediaSessionLists = new ArrayList<>(); 50 for (MediaController controller : mediaSessionManager.getActiveSessions(null)) { 51 final MediaController.PlaybackInfo pi = controller.getPlaybackInfo(); 52 if (pi == null) { 53 // do nothing 54 continue; 55 } 56 final PlaybackState playbackState = controller.getPlaybackState(); 57 if (playbackState == null) { 58 // do nothing 59 continue; 60 } 61 if (DEBUG) { 62 Log.d(TAG, "getActiveLocalMediaController() package name : " 63 + controller.getPackageName() 64 + ", play back type : " + pi.getPlaybackType() + ", play back state : " 65 + playbackState.getState()); 66 } 67 if (playbackState.getState() == PlaybackState.STATE_STOPPED 68 || playbackState.getState() == PlaybackState.STATE_NONE 69 || playbackState.getState() == PlaybackState.STATE_ERROR) { 70 // do nothing 71 continue; 72 } 73 if (pi.getPlaybackType() == MediaController.PlaybackInfo.PLAYBACK_TYPE_REMOTE) { 74 if (localController != null && TextUtils.equals(localController.getPackageName(), 75 controller.getPackageName())) { 76 localController = null; 77 } 78 if (!remoteMediaSessionLists.contains(controller.getPackageName())) { 79 remoteMediaSessionLists.add(controller.getPackageName()); 80 } 81 continue; 82 } 83 if (pi.getPlaybackType() == MediaController.PlaybackInfo.PLAYBACK_TYPE_LOCAL) { 84 if (localController == null 85 && !remoteMediaSessionLists.contains(controller.getPackageName())) { 86 localController = controller; 87 } 88 } 89 } 90 return localController; 91 } 92 } 93