1 /* 2 * Copyright (C) 2014 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.onemedia; 17 18 import android.app.Service; 19 import android.content.Intent; 20 import android.graphics.Bitmap; 21 import android.media.session.MediaSession; 22 import android.media.session.PlaybackState; 23 import android.os.Bundle; 24 import android.os.IBinder; 25 import android.os.RemoteException; 26 import android.util.Log; 27 28 import com.android.onemedia.playback.IRequestCallback; 29 import com.android.onemedia.playback.RequestUtils; 30 31 import java.util.ArrayList; 32 33 public class PlayerService extends Service { 34 private static final String TAG = "PlayerService"; 35 36 private PlayerBinder mBinder; 37 private PlayerSession mSession; 38 private NotificationHelper mNotifyHelper; 39 private Intent mIntent; 40 private boolean mStarted = false; 41 42 private ArrayList<IPlayerCallback> mCbs = new ArrayList<IPlayerCallback>(); 43 44 @Override onCreate()45 public void onCreate() { 46 Log.d(TAG, "onCreate"); 47 mIntent = onCreateServiceIntent(); 48 if (mSession == null) { 49 mSession = onCreatePlayerController(); 50 mSession.createSession(); 51 mSession.setListener(mPlayerListener); 52 mNotifyHelper = new NotificationHelper(this, mSession.mSession); 53 } 54 } 55 56 @Override onBind(Intent intent)57 public IBinder onBind(Intent intent) { 58 if (mBinder == null) { 59 mBinder = new PlayerBinder(); 60 } 61 return mBinder; 62 } 63 64 @Override onStartCommand(Intent intent, int flags, int startId)65 public int onStartCommand(Intent intent, int flags, int startId) { 66 Log.d(TAG, "onStartCommand"); 67 return START_STICKY; 68 } 69 70 @Override onDestroy()71 public void onDestroy() { 72 Log.d(TAG, "onDestroy"); 73 mSession.onDestroy(); 74 mSession = null; 75 } 76 onPlaybackStarted()77 public void onPlaybackStarted() { 78 if (!mStarted) { 79 Log.d(TAG, "Starting self"); 80 startService(onCreateServiceIntent()); 81 mNotifyHelper.onStart(); 82 mStarted = true; 83 } 84 } 85 onPlaybackEnded()86 public void onPlaybackEnded() { 87 if (mStarted) { 88 Log.d(TAG, "Stopping self"); 89 mNotifyHelper.onStop(); 90 stopSelf(); 91 mStarted = false; 92 } 93 } 94 onCreateServiceIntent()95 protected Intent onCreateServiceIntent() { 96 return new Intent(this, PlayerService.class).setPackage(getBasePackageName()); 97 } 98 onCreatePlayerController()99 protected PlayerSession onCreatePlayerController() { 100 return new PlayerSession(this); 101 } 102 getAllowedPackages()103 protected ArrayList<String> getAllowedPackages() { 104 return null; 105 } 106 107 private final PlayerSession.Listener mPlayerListener = new PlayerSession.Listener() { 108 @Override 109 public void onPlayStateChanged(PlaybackState state) { 110 switch (state.getState()) { 111 case PlaybackState.STATE_PLAYING: 112 onPlaybackStarted(); 113 break; 114 case PlaybackState.STATE_STOPPED: 115 case PlaybackState.STATE_ERROR: 116 onPlaybackEnded(); 117 break; 118 } 119 } 120 }; 121 122 public class PlayerBinder extends IPlayerService.Stub { 123 @Override sendRequest(String action, Bundle params, IRequestCallback cb)124 public void sendRequest(String action, Bundle params, IRequestCallback cb) { 125 if (RequestUtils.ACTION_SET_CONTENT.equals(action)) { 126 mSession.setContent(params); 127 } else if (RequestUtils.ACTION_SET_NEXT_CONTENT.equals(action)) { 128 mSession.setNextContent(params); 129 } 130 } 131 132 @Override registerCallback(final IPlayerCallback cb)133 public void registerCallback(final IPlayerCallback cb) throws RemoteException { 134 if (!mCbs.contains(cb)) { 135 mCbs.add(cb); 136 cb.asBinder().linkToDeath(new IBinder.DeathRecipient() { 137 @Override 138 public void binderDied() { 139 mCbs.remove(cb); 140 } 141 }, 0); 142 } 143 try { 144 cb.onSessionChanged(getSessionToken()); 145 } catch (RemoteException e) { 146 mCbs.remove(cb); 147 throw e; 148 } 149 } 150 151 @Override unregisterCallback(IPlayerCallback cb)152 public void unregisterCallback(IPlayerCallback cb) throws RemoteException { 153 mCbs.remove(cb); 154 } 155 156 @Override getSessionToken()157 public MediaSession.Token getSessionToken() throws RemoteException { 158 if (mSession == null) { 159 Log.e(TAG, "Error in PlayerService: mSession=null in getSessionToken()"); 160 return null; 161 } 162 return mSession.getSessionToken(); 163 } 164 165 @Override setIcon(Bitmap icon)166 public void setIcon(Bitmap icon) { 167 mSession.setIcon(icon); 168 } 169 } 170 171 } 172