diff options
Diffstat (limited to 'MusicDemo/src/main/java/com/example/android')
12 files changed, 0 insertions, 2665 deletions
diff --git a/MusicDemo/src/main/java/com/example/android/musicservicedemo/BrowseFragment.java b/MusicDemo/src/main/java/com/example/android/musicservicedemo/BrowseFragment.java deleted file mode 100644 index 1218c81..0000000 --- a/MusicDemo/src/main/java/com/example/android/musicservicedemo/BrowseFragment.java +++ /dev/null @@ -1,210 +0,0 @@ -/* - * Copyright (C) 2014 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.example.android.musicservicedemo; - -import android.app.Fragment; -import android.content.ComponentName; -import android.content.Context; -import android.media.browse.MediaBrowser; -import android.media.session.MediaController; -import android.os.Bundle; -import android.util.Log; -import android.view.LayoutInflater; -import android.view.View; -import android.view.ViewGroup; -import android.widget.AdapterView; -import android.widget.ArrayAdapter; -import android.widget.ImageView; -import android.widget.ListView; -import android.widget.TextView; -import android.widget.Toast; - -import com.example.android.musicservicedemo.utils.LogHelper; - -import java.util.ArrayList; -import java.util.List; - -/** - * A Fragment that lists all the various browsable queues available - * from a {@link android.service.media.MediaBrowserService}. - * <p/> - * It uses a {@link MediaBrowser} to connect to the {@link MusicService}. Once connected, - * the fragment subscribes to get all the children. All {@link MediaBrowser.MediaItem}'s - * that can be browsed are shown in a ListView. - */ -public class BrowseFragment extends Fragment { - - private static final String TAG = BrowseFragment.class.getSimpleName(); - - public static final String ARG_MEDIA_ID = "media_id"; - - public static interface FragmentDataHelper { - void onMediaItemSelected(MediaBrowser.MediaItem item); - } - - // The mediaId to be used for subscribing for children using the MediaBrowser. - private String mMediaId; - - private MediaBrowser mMediaBrowser; - private BrowseAdapter mBrowserAdapter; - - private MediaBrowser.SubscriptionCallback mSubscriptionCallback = new MediaBrowser.SubscriptionCallback() { - - @Override - public void onChildrenLoaded(String parentId, List<MediaBrowser.MediaItem> children) { - mBrowserAdapter.clear(); - mBrowserAdapter.notifyDataSetInvalidated(); - for (MediaBrowser.MediaItem item : children) { - mBrowserAdapter.add(item); - } - mBrowserAdapter.notifyDataSetChanged(); - } - - @Override - public void onError(String id) { - Toast.makeText(getActivity(), R.string.error_loading_media, - Toast.LENGTH_LONG).show(); - } - }; - - private MediaBrowser.ConnectionCallback mConnectionCallback = - new MediaBrowser.ConnectionCallback() { - @Override - public void onConnected() { - LogHelper.d(TAG, "onConnected: session token " + mMediaBrowser.getSessionToken()); - - if (mMediaId == null) { - mMediaId = mMediaBrowser.getRoot(); - } - mMediaBrowser.subscribe(mMediaId, mSubscriptionCallback); - if (mMediaBrowser.getSessionToken() == null) { - throw new IllegalArgumentException("No Session token"); - } - MediaController mediaController = new MediaController(getActivity(), - mMediaBrowser.getSessionToken()); - getActivity().setMediaController(mediaController); - } - - @Override - public void onConnectionFailed() { - LogHelper.d(TAG, "onConnectionFailed"); - } - - @Override - public void onConnectionSuspended() { - LogHelper.d(TAG, "onConnectionSuspended"); - getActivity().setMediaController(null); - } - }; - - public static BrowseFragment newInstance(String mediaId) { - Bundle args = new Bundle(); - args.putString(ARG_MEDIA_ID, mediaId); - BrowseFragment fragment = new BrowseFragment(); - fragment.setArguments(args); - return fragment; - } - - @Override - public View onCreateView(LayoutInflater inflater, ViewGroup container, - Bundle savedInstanceState) { - View rootView = inflater.inflate(R.layout.fragment_list, container, false); - - mBrowserAdapter = new BrowseAdapter(getActivity()); - - View controls = rootView.findViewById(R.id.controls); - controls.setVisibility(View.GONE); - - ListView listView = (ListView) rootView.findViewById(R.id.list_view); - listView.setAdapter(mBrowserAdapter); - listView.setOnItemClickListener(new AdapterView.OnItemClickListener() { - @Override - public void onItemClick(AdapterView<?> parent, View view, int position, long id) { - MediaBrowser.MediaItem item = mBrowserAdapter.getItem(position); - try { - FragmentDataHelper listener = (FragmentDataHelper) getActivity(); - listener.onMediaItemSelected(item); - } catch (ClassCastException ex) { - Log.e(TAG, "Exception trying to cast to FragmentDataHelper", ex); - } - } - }); - - Bundle args = getArguments(); - mMediaId = args.getString(ARG_MEDIA_ID, null); - - mMediaBrowser = new MediaBrowser(getActivity(), - new ComponentName(getActivity(), MusicService.class), - mConnectionCallback, null); - - return rootView; - } - - @Override - public void onStart() { - super.onStart(); - mMediaBrowser.connect(); - } - - @Override - public void onStop() { - super.onStop(); - mMediaBrowser.disconnect(); - } - - // An adapter for showing the list of browsed MediaItem's - private static class BrowseAdapter extends ArrayAdapter<MediaBrowser.MediaItem> { - - public BrowseAdapter(Context context) { - super(context, R.layout.media_list_item, new ArrayList<MediaBrowser.MediaItem>()); - } - - static class ViewHolder { - ImageView mImageView; - TextView mTitleView; - TextView mDescriptionView; - } - - @Override - public View getView(int position, View convertView, ViewGroup parent) { - - ViewHolder holder; - - if (convertView == null) { - convertView = LayoutInflater.from(getContext()) - .inflate(R.layout.media_list_item, parent, false); - holder = new ViewHolder(); - holder.mImageView = (ImageView) convertView.findViewById(R.id.play_eq); - holder.mImageView.setVisibility(View.GONE); - holder.mTitleView = (TextView) convertView.findViewById(R.id.title); - holder.mDescriptionView = (TextView) convertView.findViewById(R.id.description); - convertView.setTag(holder); - } else { - holder = (ViewHolder) convertView.getTag(); - } - - MediaBrowser.MediaItem item = getItem(position); - holder.mTitleView.setText(item.getDescription().getTitle()); - holder.mDescriptionView.setText(item.getDescription().getDescription()); - if (item.isPlayable()) { - holder.mImageView.setImageDrawable( - getContext().getDrawable(R.drawable.ic_play_arrow_white_24dp)); - holder.mImageView.setVisibility(View.VISIBLE); - } - return convertView; - } - } -} diff --git a/MusicDemo/src/main/java/com/example/android/musicservicedemo/CarConnectionReceiver.java b/MusicDemo/src/main/java/com/example/android/musicservicedemo/CarConnectionReceiver.java deleted file mode 100644 index de9ef4f..0000000 --- a/MusicDemo/src/main/java/com/example/android/musicservicedemo/CarConnectionReceiver.java +++ /dev/null @@ -1,45 +0,0 @@ -/* - * Copyright (C) 2014 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.example.android.musicservicedemo; - -import android.content.BroadcastReceiver; -import android.content.Context; -import android.content.Intent; - -import com.example.android.musicservicedemo.utils.LogHelper; - -/** - * Broadcast receiver that gets notified whenever the device is connected to a compatible car. - */ -public class CarConnectionReceiver extends BroadcastReceiver { - - private static final String TAG = "CarPlugReceiver"; - - private static final String CONNECTED_ACTION = "com.google.android.gms.car.CONNECTED"; - private static final String DISCONNECTED_ACTION = "com.google.android.gms.car.DISCONNECTED"; - - @Override - public void onReceive(Context context, Intent intent) { - if (CONNECTED_ACTION.equals(intent.getAction())) { - LogHelper.i(TAG, "Device is connected to Android Auto"); - } else if (DISCONNECTED_ACTION.equals(intent.getAction())) { - LogHelper.i(TAG, "Device is disconnected from Android Auto"); - } else { - LogHelper.w(TAG, "Received unexpected broadcast intent. Intent action: ", - intent.getAction()); - } - } -} diff --git a/MusicDemo/src/main/java/com/example/android/musicservicedemo/MediaNotification.java b/MusicDemo/src/main/java/com/example/android/musicservicedemo/MediaNotification.java deleted file mode 100644 index 94ac023..0000000 --- a/MusicDemo/src/main/java/com/example/android/musicservicedemo/MediaNotification.java +++ /dev/null @@ -1,381 +0,0 @@ -/* - * Copyright (C) 2014 Google Inc. All Rights Reserved. - * - * 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.example.android.musicservicedemo; - -import android.app.Notification; -import android.app.NotificationManager; -import android.app.PendingIntent; -import android.content.BroadcastReceiver; -import android.content.Context; -import android.content.Intent; -import android.content.IntentFilter; -import android.content.pm.ApplicationInfo; -import android.content.pm.PackageManager; -import android.content.res.Resources; -import android.content.res.TypedArray; -import android.graphics.Bitmap; -import android.graphics.BitmapFactory; -import android.graphics.Color; -import android.media.MediaDescription; -import android.media.MediaMetadata; -import android.media.session.MediaController; -import android.media.session.MediaSession; -import android.media.session.PlaybackState; -import android.os.AsyncTask; -import android.util.LruCache; -import android.util.SparseArray; - -import com.example.android.musicservicedemo.utils.BitmapHelper; -import com.example.android.musicservicedemo.utils.LogHelper; - -import java.io.IOException; - -/** - * Keeps track of a notification and updates it automatically for a given - * MediaSession. Maintaining a visible notification (usually) guarantees that the music service - * won't be killed during playback. - */ -public class MediaNotification extends BroadcastReceiver { - private static final String TAG = "MediaNotification"; - - private static final int NOTIFICATION_ID = 412; - - public static final String ACTION_PAUSE = "com.example.android.musicservicedemo.pause"; - public static final String ACTION_PLAY = "com.example.android.musicservicedemo.play"; - public static final String ACTION_PREV = "com.example.android.musicservicedemo.prev"; - public static final String ACTION_NEXT = "com.example.android.musicservicedemo.next"; - - private static final int MAX_ALBUM_ART_CACHE_SIZE = 1024*1024; - - private final MusicService mService; - private MediaSession.Token mSessionToken; - private MediaController mController; - private MediaController.TransportControls mTransportControls; - private final SparseArray<PendingIntent> mIntents = new SparseArray<PendingIntent>(); - private final LruCache<String, Bitmap> mAlbumArtCache; - - private PlaybackState mPlaybackState; - private MediaMetadata mMetadata; - - private Notification.Builder mNotificationBuilder; - private NotificationManager mNotificationManager; - private Notification.Action mPlayPauseAction; - - private String mCurrentAlbumArt; - private int mNotificationColor; - - private boolean mStarted = false; - - public MediaNotification(MusicService service) { - mService = service; - updateSessionToken(); - - // simple album art cache that holds no more than - // MAX_ALBUM_ART_CACHE_SIZE bytes: - mAlbumArtCache = new LruCache<String, Bitmap>(MAX_ALBUM_ART_CACHE_SIZE) { - @Override - protected int sizeOf(String key, Bitmap value) { - return value.getByteCount(); - } - }; - - mNotificationColor = getNotificationColor(); - - mNotificationManager = (NotificationManager) mService - .getSystemService(Context.NOTIFICATION_SERVICE); - - String pkg = mService.getPackageName(); - mIntents.put(R.drawable.ic_pause_white_24dp, PendingIntent.getBroadcast(mService, 100, - new Intent(ACTION_PAUSE).setPackage(pkg), PendingIntent.FLAG_CANCEL_CURRENT)); - mIntents.put(R.drawable.ic_play_arrow_white_24dp, PendingIntent.getBroadcast(mService, 100, - new Intent(ACTION_PLAY).setPackage(pkg), PendingIntent.FLAG_CANCEL_CURRENT)); - mIntents.put(R.drawable.ic_skip_previous_white_24dp, PendingIntent.getBroadcast(mService, 100, - new Intent(ACTION_PREV).setPackage(pkg), PendingIntent.FLAG_CANCEL_CURRENT)); - mIntents.put(R.drawable.ic_skip_next_white_24dp, PendingIntent.getBroadcast(mService, 100, - new Intent(ACTION_NEXT).setPackage(pkg), PendingIntent.FLAG_CANCEL_CURRENT)); - } - - protected int getNotificationColor() { - int notificationColor = 0; - String packageName = mService.getPackageName(); - try { - Context packageContext = mService.createPackageContext(packageName, 0); - ApplicationInfo applicationInfo = - mService.getPackageManager().getApplicationInfo(packageName, 0); - packageContext.setTheme(applicationInfo.theme); - Resources.Theme theme = packageContext.getTheme(); - TypedArray ta = theme.obtainStyledAttributes( - new int[] {android.R.attr.colorPrimary}); - notificationColor = ta.getColor(0, Color.DKGRAY); - ta.recycle(); - } catch (PackageManager.NameNotFoundException e) { - e.printStackTrace(); - } - return notificationColor; - } - - /** - * Posts the notification and starts tracking the session to keep it - * updated. The notification will automatically be removed if the session is - * destroyed before {@link #stopNotification} is called. - */ - public void startNotification() { - if (!mStarted) { - mController.registerCallback(mCb); - IntentFilter filter = new IntentFilter(); - filter.addAction(ACTION_NEXT); - filter.addAction(ACTION_PAUSE); - filter.addAction(ACTION_PLAY); - filter.addAction(ACTION_PREV); - mService.registerReceiver(this, filter); - - mMetadata = mController.getMetadata(); - mPlaybackState = mController.getPlaybackState(); - - mStarted = true; - // The notification must be updated after setting started to true - updateNotificationMetadata(); - } - } - - /** - * Removes the notification and stops tracking the session. If the session - * was destroyed this has no effect. - */ - public void stopNotification() { - mStarted = false; - mController.unregisterCallback(mCb); - try { - mNotificationManager.cancel(NOTIFICATION_ID); - mService.unregisterReceiver(this); - } catch (IllegalArgumentException ex) { - // ignore if the receiver is not registered. - } - mService.stopForeground(true); - } - - @Override - public void onReceive(Context context, Intent intent) { - final String action = intent.getAction(); - LogHelper.d(TAG, "Received intent with action " + action); - if (ACTION_PAUSE.equals(action)) { - mTransportControls.pause(); - } else if (ACTION_PLAY.equals(action)) { - mTransportControls.play(); - } else if (ACTION_NEXT.equals(action)) { - mTransportControls.skipToNext(); - } else if (ACTION_PREV.equals(action)) { - mTransportControls.skipToPrevious(); - } - } - - /** - * Update the state based on a change on the session token. Called either when - * we are running for the first time or when the media session owner has destroyed the session - * (see {@link android.media.session.MediaController.Callback#onSessionDestroyed()}) - */ - private void updateSessionToken() { - MediaSession.Token freshToken = mService.getSessionToken(); - if (mSessionToken == null || !mSessionToken.equals(freshToken)) { - if (mController != null) { - mController.unregisterCallback(mCb); - } - mSessionToken = freshToken; - mController = new MediaController(mService, mSessionToken); - mTransportControls = mController.getTransportControls(); - if (mStarted) { - mController.registerCallback(mCb); - } - } - } - - private final MediaController.Callback mCb = new MediaController.Callback() { - @Override - public void onPlaybackStateChanged(PlaybackState state) { - mPlaybackState = state; - LogHelper.d(TAG, "Received new playback state", state); - updateNotificationPlaybackState(); - } - - @Override - public void onMetadataChanged(MediaMetadata metadata) { - mMetadata = metadata; - LogHelper.d(TAG, "Received new metadata ", metadata); - updateNotificationMetadata(); - } - - @Override - public void onSessionDestroyed() { - super.onSessionDestroyed(); - LogHelper.d(TAG, "Session was destroyed, resetting to the new session token"); - updateSessionToken(); - } - }; - - private void updateNotificationMetadata() { - LogHelper.d(TAG, "updateNotificationMetadata. mMetadata=" + mMetadata); - if (mMetadata == null || mPlaybackState == null) { - return; - } - - updatePlayPauseAction(); - - mNotificationBuilder = new Notification.Builder(mService); - int playPauseActionIndex = 0; - - // If skip to previous action is enabled - if ((mPlaybackState.getActions() & PlaybackState.ACTION_SKIP_TO_PREVIOUS) != 0) { - mNotificationBuilder - .addAction(R.drawable.ic_skip_previous_white_24dp, - mService.getString(R.string.label_previous), - mIntents.get(R.drawable.ic_skip_previous_white_24dp)); - playPauseActionIndex = 1; - } - - mNotificationBuilder.addAction(mPlayPauseAction); - - // If skip to next action is enabled - if ((mPlaybackState.getActions() & PlaybackState.ACTION_SKIP_TO_NEXT) != 0) { - mNotificationBuilder.addAction(R.drawable.ic_skip_next_white_24dp, - mService.getString(R.string.label_next), - mIntents.get(R.drawable.ic_skip_next_white_24dp)); - } - - MediaDescription description = mMetadata.getDescription(); - - String fetchArtUrl = null; - Bitmap art = description.getIconBitmap(); - if (art == null && description.getIconUri() != null) { - // This sample assumes the iconUri will be a valid URL formatted String, but - // it can actually be any valid Android Uri formatted String. - // async fetch the album art icon - String artUrl = description.getIconUri().toString(); - art = mAlbumArtCache.get(artUrl); - if (art == null) { - fetchArtUrl = artUrl; - // use a placeholder art while the remote art is being downloaded - art = BitmapFactory.decodeResource(mService.getResources(), R.drawable.ic_default_art); - } - } - - mNotificationBuilder - .setStyle(new Notification.MediaStyle() - .setShowActionsInCompactView(playPauseActionIndex) // only show play/pause in compact view - .setMediaSession(mSessionToken)) - .setColor(mNotificationColor) - .setSmallIcon(R.drawable.ic_notification) - .setVisibility(Notification.VISIBILITY_PUBLIC) - .setUsesChronometer(true) - .setContentTitle(description.getTitle()) - .setContentText(description.getSubtitle()) - .setLargeIcon(art); - - updateNotificationPlaybackState(); - - mService.startForeground(NOTIFICATION_ID, mNotificationBuilder.build()); - if (fetchArtUrl != null) { - fetchBitmapFromURLAsync(fetchArtUrl); - } - } - - private void updatePlayPauseAction() { - LogHelper.d(TAG, "updatePlayPauseAction"); - String playPauseLabel = ""; - int playPauseIcon; - if (mPlaybackState.getState() == PlaybackState.STATE_PLAYING) { - playPauseLabel = mService.getString(R.string.label_pause); - playPauseIcon = R.drawable.ic_pause_white_24dp; - } else { - playPauseLabel = mService.getString(R.string.label_play); - playPauseIcon = R.drawable.ic_play_arrow_white_24dp; - } - if (mPlayPauseAction == null) { - mPlayPauseAction = new Notification.Action(playPauseIcon, playPauseLabel, - mIntents.get(playPauseIcon)); - } else { - mPlayPauseAction.icon = playPauseIcon; - mPlayPauseAction.title = playPauseLabel; - mPlayPauseAction.actionIntent = mIntents.get(playPauseIcon); - } - } - - private void updateNotificationPlaybackState() { - LogHelper.d(TAG, "updateNotificationPlaybackState. mPlaybackState=" + mPlaybackState); - if (mPlaybackState == null || !mStarted) { - LogHelper.d(TAG, "updateNotificationPlaybackState. cancelling notification!"); - mService.stopForeground(true); - return; - } - if (mNotificationBuilder == null) { - LogHelper.d(TAG, "updateNotificationPlaybackState. there is no notificationBuilder. Ignoring request to update state!"); - return; - } - if (mPlaybackState.getPosition() >= 0) { - LogHelper.d(TAG, "updateNotificationPlaybackState. updating playback position to ", - (System.currentTimeMillis() - mPlaybackState.getPosition()) / 1000, " seconds"); - mNotificationBuilder - .setWhen(System.currentTimeMillis() - mPlaybackState.getPosition()) - .setShowWhen(true) - .setUsesChronometer(true); - mNotificationBuilder.setShowWhen(true); - } else { - LogHelper.d(TAG, "updateNotificationPlaybackState. hiding playback position"); - mNotificationBuilder - .setWhen(0) - .setShowWhen(false) - .setUsesChronometer(false); - } - - updatePlayPauseAction(); - - // Make sure that the notification can be dismissed by the user when we are not playing: - mNotificationBuilder.setOngoing(mPlaybackState.getState() == PlaybackState.STATE_PLAYING); - - mNotificationManager.notify(NOTIFICATION_ID, mNotificationBuilder.build()); - } - - public void fetchBitmapFromURLAsync(final String source) { - LogHelper.d(TAG, "getBitmapFromURLAsync: starting asynctask to fetch ", source); - new AsyncTask<Void, Void, Bitmap>() { - @Override - protected Bitmap doInBackground(Void[] objects) { - Bitmap bitmap = null; - try { - bitmap = BitmapHelper.fetchAndRescaleBitmap(source, - BitmapHelper.MEDIA_ART_BIG_WIDTH, BitmapHelper.MEDIA_ART_BIG_HEIGHT); - mAlbumArtCache.put(source, bitmap); - } catch (IOException e) { - LogHelper.e(TAG, e, "getBitmapFromURLAsync: " + source); - } - return bitmap; - } - - @Override - protected void onPostExecute(Bitmap bitmap) { - if (bitmap != null && mMetadata != null && - mNotificationBuilder != null && mMetadata.getDescription() != null && - !source.equals(mMetadata.getDescription().getIconUri())) { - // If the media is still the same, update the notification: - LogHelper.d(TAG, "getBitmapFromURLAsync: set bitmap to ", source); - mNotificationBuilder.setLargeIcon(bitmap); - mNotificationManager.notify(NOTIFICATION_ID, mNotificationBuilder.build()); - } - } - }.execute(); - } - -} diff --git a/MusicDemo/src/main/java/com/example/android/musicservicedemo/MusicPlayerActivity.java b/MusicDemo/src/main/java/com/example/android/musicservicedemo/MusicPlayerActivity.java deleted file mode 100644 index 39c46c4..0000000 --- a/MusicDemo/src/main/java/com/example/android/musicservicedemo/MusicPlayerActivity.java +++ /dev/null @@ -1,61 +0,0 @@ -/* - * Copyright (C) 2014 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.example.android.musicservicedemo; - -import android.app.Activity; -import android.media.browse.MediaBrowser; -import android.media.session.MediaController; -import android.os.Bundle; - -/** - * Main activity for the music player. - */ -public class MusicPlayerActivity extends Activity - implements BrowseFragment.FragmentDataHelper { - - private static final String TAG = MusicPlayerActivity.class.getSimpleName(); - - private MediaBrowser mMediaBrowser; - private MediaController mMediaController; - - @Override - public void onCreate(Bundle savedInstanceState) { - super.onCreate(savedInstanceState); - setContentView(R.layout.activity_player); - if (savedInstanceState == null) { - getFragmentManager().beginTransaction() - .add(R.id.container, BrowseFragment.newInstance(null)) - .commit(); - } - } - - @Override - public void onMediaItemSelected(MediaBrowser.MediaItem item) { - if (item.isPlayable()) { - getMediaController().getTransportControls().playFromMediaId(item.getMediaId(), null); - QueueFragment queueFragment = QueueFragment.newInstance(); - getFragmentManager().beginTransaction() - .replace(R.id.container, queueFragment) - .addToBackStack(null) - .commit(); - } else if (item.isBrowsable()) { - getFragmentManager().beginTransaction() - .replace(R.id.container, BrowseFragment.newInstance(item.getMediaId())) - .addToBackStack(null) - .commit(); - } - } -} diff --git a/MusicDemo/src/main/java/com/example/android/musicservicedemo/MusicService.java b/MusicDemo/src/main/java/com/example/android/musicservicedemo/MusicService.java deleted file mode 100644 index c737ba4..0000000 --- a/MusicDemo/src/main/java/com/example/android/musicservicedemo/MusicService.java +++ /dev/null @@ -1,934 +0,0 @@ -/* - * Copyright (C) 2014 Google Inc. All Rights Reserved. - * - * 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.example.android.musicservicedemo; - -import android.content.Context; -import android.content.Intent; -import android.media.AudioManager; -import android.media.MediaDescription; -import android.media.MediaMetadata; -import android.media.MediaPlayer; -import android.media.MediaPlayer.OnCompletionListener; -import android.media.MediaPlayer.OnErrorListener; -import android.media.MediaPlayer.OnPreparedListener; -import android.media.browse.MediaBrowser; -import android.media.browse.MediaBrowser.MediaItem; -import android.media.session.MediaSession; -import android.media.session.PlaybackState; -import android.net.Uri; -import android.net.wifi.WifiManager; -import android.net.wifi.WifiManager.WifiLock; -import android.os.Bundle; -import android.os.Handler; -import android.os.Message; -import android.os.PowerManager; -import android.os.SystemClock; -import android.service.media.MediaBrowserService; - -import com.example.android.musicservicedemo.model.MusicProvider; -import com.example.android.musicservicedemo.utils.LogHelper; -import com.example.android.musicservicedemo.utils.MediaIDHelper; -import com.example.android.musicservicedemo.utils.QueueHelper; - -import java.io.IOException; -import java.util.ArrayList; -import java.util.List; - -import static com.example.android.musicservicedemo.utils.MediaIDHelper.MEDIA_ID_MUSICS_BY_GENRE; -import static com.example.android.musicservicedemo.utils.MediaIDHelper.MEDIA_ID_ROOT; -import static com.example.android.musicservicedemo.utils.MediaIDHelper.createBrowseCategoryMediaID; -import static com.example.android.musicservicedemo.utils.MediaIDHelper.extractBrowseCategoryFromMediaID; - -/** - * Main entry point for the Android Automobile integration. This class needs to: - * - * <ul> - * - * <li> Extend {@link android.service.media.MediaBrowserService}, implementing the media browsing - * related methods {@link android.service.media.MediaBrowserService#onGetRoot} and - * {@link android.service.media.MediaBrowserService#onLoadChildren}; - * <li> Start a new {@link android.media.session.MediaSession} and notify its parent with the - * session's token {@link android.service.media.MediaBrowserService#setSessionToken}; - * - * <li> Set a callback on the - * {@link android.media.session.MediaSession#setCallback(android.media.session.MediaSession.Callback)}. - * The callback will receive all the user's actions, like play, pause, etc; - * - * <li> Handle all the actual music playing using any method your app prefers (for example, - * {@link android.media.MediaPlayer}) - * - * <li> Update playbackState, "now playing" metadata and queue, using MediaSession proper methods - * {@link android.media.session.MediaSession#setPlaybackState(android.media.session.PlaybackState)} - * {@link android.media.session.MediaSession#setMetadata(android.media.MediaMetadata)} and - * {@link android.media.session.MediaSession#setQueue(java.util.List)}) - * - * <li> Be declared in AndroidManifest as an intent receiver for the action - * android.media.browse.MediaBrowserService - * - * <li> Declare a meta-data tag in AndroidManifest.xml linking to a xml resource - * with a <automotiveApp> root element. For a media app, this must include - * an <uses name="media"/> element as a child. - * For example, in AndroidManifest.xml: - * <meta-data android:name="com.google.android.gms.car.application" - * android:resource="@xml/automotive_app_desc"/> - * And in res/values/automotive_app_desc.xml: - * <automotiveApp> - * <uses name="media"/> - * </automotiveApp> - * - * </ul> - - * <p> - * Customization: - * - * <li> Add custom actions in the state passed to setPlaybackState(state) - * <li> Handle custom actions in the MediaSession.Callback.onCustomAction - * <li> Use UI theme primaryColor to set the player color - * - * @see <a href="README.txt">README.txt</a> for more details. - * - */ - -public class MusicService extends MediaBrowserService implements OnPreparedListener, - OnCompletionListener, OnErrorListener, AudioManager.OnAudioFocusChangeListener { - - private static final String TAG = "MusicService"; - - // Action to thumbs up a media item - private static final String CUSTOM_ACTION_THUMBS_UP = "thumbs_up"; - // Delay stopSelf by using a handler. - private static final int STOP_DELAY = 30000; - - // The volume we set the media player to when we lose audio focus, but are - // allowed to reduce the volume instead of stopping playback. - public static final float VOLUME_DUCK = 0.2f; - - // The volume we set the media player when we have audio focus. - public static final float VOLUME_NORMAL = 1.0f; - public static final String ANDROID_AUTO_PACKAGE_NAME = "com.google.android.projection.gearhead"; - public static final String ANDROID_AUTO_EMULATOR_PACKAGE_NAME = "com.example.android.media"; - - // Music catalog manager - private MusicProvider mMusicProvider; - - private MediaSession mSession; - private MediaPlayer mMediaPlayer; - - // "Now playing" queue: - private List<MediaSession.QueueItem> mPlayingQueue; - private int mCurrentIndexOnQueue; - - // Current local media player state - private int mState = PlaybackState.STATE_NONE; - - // Wifi lock that we hold when streaming files from the internet, in order - // to prevent the device from shutting off the Wifi radio - private WifiLock mWifiLock; - - private MediaNotification mMediaNotification; - - // Indicates whether the service was started. - private boolean mServiceStarted; - - enum AudioFocus { - NoFocusNoDuck, // we don't have audio focus, and can't duck - NoFocusCanDuck, // we don't have focus, but can play at a low volume - // ("ducking") - Focused // we have full audio focus - } - - // Type of audio focus we have: - private AudioFocus mAudioFocus = AudioFocus.NoFocusNoDuck; - private AudioManager mAudioManager; - - // Indicates if we should start playing immediately after we gain focus. - private boolean mPlayOnFocusGain; - - private Handler mDelayedStopHandler = new Handler() { - @Override - public void handleMessage(Message msg) { - if ((mMediaPlayer != null && mMediaPlayer.isPlaying()) || - mPlayOnFocusGain) { - LogHelper.d(TAG, "Ignoring delayed stop since the media player is in use."); - return; - } - LogHelper.d(TAG, "Stopping service with delay handler."); - stopSelf(); - mServiceStarted = false; - } - }; - - /* - * (non-Javadoc) - * @see android.app.Service#onCreate() - */ - @Override - public void onCreate() { - super.onCreate(); - LogHelper.d(TAG, "onCreate"); - - mPlayingQueue = new ArrayList<>(); - - // Create the Wifi lock (this does not acquire the lock, this just creates it) - mWifiLock = ((WifiManager) getSystemService(Context.WIFI_SERVICE)) - .createWifiLock(WifiManager.WIFI_MODE_FULL, "MusicDemo_lock"); - - - // Create the music catalog metadata provider - mMusicProvider = new MusicProvider(); - mMusicProvider.retrieveMedia(new MusicProvider.Callback() { - @Override - public void onMusicCatalogReady(boolean success) { - mState = success ? PlaybackState.STATE_STOPPED : PlaybackState.STATE_ERROR; - } - }); - - mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE); - - // Start a new MediaSession - mSession = new MediaSession(this, "MusicService"); - setSessionToken(mSession.getSessionToken()); - mSession.setCallback(new MediaSessionCallback()); - mSession.setFlags(MediaSession.FLAG_HANDLES_MEDIA_BUTTONS | - MediaSession.FLAG_HANDLES_TRANSPORT_CONTROLS); - - // Use these extras to reserve space for the corresponding actions, even when they are disabled - // in the playbackstate, so the custom actions don't reflow. - Bundle extras = new Bundle(); - extras.putBoolean( - "com.google.android.gms.car.media.ALWAYS_RESERVE_SPACE_FOR.ACTION_SKIP_TO_NEXT", - true); - extras.putBoolean( - "com.google.android.gms.car.media.ALWAYS_RESERVE_SPACE_FOR.ACTION_SKIP_TO_PREVIOUS", - true); - // If you want to reserve the Queue slot when there is no queue - // (mSession.setQueue(emptylist)), uncomment the lines below: - // extras.putBoolean( - // "com.google.android.gms.car.media.ALWAYS_RESERVE_SPACE_FOR.ACTION_QUEUE", - // true); - mSession.setExtras(extras); - - updatePlaybackState(null); - - mMediaNotification = new MediaNotification(this); - } - - /* - * (non-Javadoc) - * @see android.app.Service#onDestroy() - */ - @Override - public void onDestroy() { - LogHelper.d(TAG, "onDestroy"); - - // Service is being killed, so make sure we release our resources - handleStopRequest(null); - - mDelayedStopHandler.removeCallbacksAndMessages(null); - // In particular, always release the MediaSession to clean up resources - // and notify associated MediaController(s). - mSession.release(); - } - - - // ********* MediaBrowserService methods: - - @Override - public BrowserRoot onGetRoot(String clientPackageName, int clientUid, Bundle rootHints) { - LogHelper.d(TAG, "OnGetRoot: clientPackageName=" + clientPackageName, - "; clientUid=" + clientUid + " ; rootHints=", rootHints); - // To ensure you are not allowing any arbitrary app to browse your app's contents, you - // need to check the origin: - if (!ANDROID_AUTO_PACKAGE_NAME.equals(clientPackageName) && - !ANDROID_AUTO_EMULATOR_PACKAGE_NAME.equals(clientPackageName) && - !getApplication().getPackageName().equals(clientPackageName)) { - // If the request comes from an untrusted package, return null. No further calls will - // be made to other media browsing methods. - LogHelper.w(TAG, "OnGetRoot: IGNORING request from untrusted package " + clientPackageName); - return null; - } - return new BrowserRoot(MEDIA_ID_ROOT, null); - } - - @Override - public void onLoadChildren(final String parentMediaId, final Result<List<MediaItem>> result) { - if (!mMusicProvider.isInitialized()) { - // Use result.detach to allow calling result.sendResult from another thread: - result.detach(); - - mMusicProvider.retrieveMedia(new MusicProvider.Callback() { - @Override - public void onMusicCatalogReady(boolean success) { - if (success) { - loadChildrenImpl(parentMediaId, result); - } else { - updatePlaybackState(getString(R.string.error_no_metadata)); - result.sendResult(new ArrayList<MediaItem>()); - } - } - }); - - } else { - // If our music catalog is already loaded/cached, load them into result immediately - loadChildrenImpl(parentMediaId, result); - } - } - - /** - * Actual implementation of onLoadChildren that assumes that MusicProvider is already - * initialized. - */ - private void loadChildrenImpl(final String parentMediaId, - final Result<List<MediaBrowser.MediaItem>> result) { - LogHelper.d(TAG, "OnLoadChildren: parentMediaId=", parentMediaId); - - List<MediaBrowser.MediaItem> mediaItems = new ArrayList<>(); - - if (MEDIA_ID_ROOT.equals(parentMediaId)) { - LogHelper.d(TAG, "OnLoadChildren.ROOT"); - mediaItems.add(new MediaBrowser.MediaItem( - new MediaDescription.Builder() - .setMediaId(MEDIA_ID_MUSICS_BY_GENRE) - .setTitle(getString(R.string.browse_genres)) - .setIconUri(Uri.parse("android.resource://com.example.android.musicservicedemo/drawable/ic_by_genre")) - .setSubtitle(getString(R.string.browse_genre_subtitle)) - .build(), MediaBrowser.MediaItem.FLAG_BROWSABLE - )); - - } else if (MEDIA_ID_MUSICS_BY_GENRE.equals(parentMediaId)) { - LogHelper.d(TAG, "OnLoadChildren.GENRES"); - for (String genre: mMusicProvider.getGenres()) { - MediaBrowser.MediaItem item = new MediaBrowser.MediaItem( - new MediaDescription.Builder() - .setMediaId(createBrowseCategoryMediaID(MEDIA_ID_MUSICS_BY_GENRE, genre)) - .setTitle(genre) - .setSubtitle(getString(R.string.browse_musics_by_genre_subtitle, genre)) - .build(), MediaBrowser.MediaItem.FLAG_BROWSABLE - ); - mediaItems.add(item); - } - - } else if (parentMediaId.startsWith(MEDIA_ID_MUSICS_BY_GENRE)) { - String genre = extractBrowseCategoryFromMediaID(parentMediaId)[1]; - LogHelper.d(TAG, "OnLoadChildren.SONGS_BY_GENRE genre=", genre); - for (MediaMetadata track: mMusicProvider.getMusicsByGenre(genre)) { - // Since mediaMetadata fields are immutable, we need to create a copy, so we - // can set a hierarchy-aware mediaID. We will need to know the media hierarchy - // when we get a onPlayFromMusicID call, so we can create the proper queue based - // on where the music was selected from (by artist, by genre, random, etc) - String hierarchyAwareMediaID = MediaIDHelper.createTrackMediaID( - MEDIA_ID_MUSICS_BY_GENRE, genre, track); - MediaMetadata trackCopy = new MediaMetadata.Builder(track) - .putString(MediaMetadata.METADATA_KEY_MEDIA_ID, hierarchyAwareMediaID) - .build(); - MediaBrowser.MediaItem bItem = new MediaBrowser.MediaItem( - trackCopy.getDescription(), MediaItem.FLAG_PLAYABLE); - mediaItems.add(bItem); - } - } else { - LogHelper.w(TAG, "Skipping unmatched parentMediaId: ", parentMediaId); - } - result.sendResult(mediaItems); - } - - - - // ********* MediaSession.Callback implementation: - - private final class MediaSessionCallback extends MediaSession.Callback { - @Override - public void onPlay() { - LogHelper.d(TAG, "play"); - - if (mPlayingQueue == null || mPlayingQueue.isEmpty()) { - mPlayingQueue = QueueHelper.getRandomQueue(mMusicProvider); - mSession.setQueue(mPlayingQueue); - mSession.setQueueTitle(getString(R.string.random_queue_title)); - // start playing from the beginning of the queue - mCurrentIndexOnQueue = 0; - } - - if (mPlayingQueue != null && !mPlayingQueue.isEmpty()) { - handlePlayRequest(); - } - } - - @Override - public void onSkipToQueueItem(long queueId) { - LogHelper.d(TAG, "OnSkipToQueueItem:" + queueId); - if (mPlayingQueue != null && !mPlayingQueue.isEmpty()) { - - // set the current index on queue from the music Id: - mCurrentIndexOnQueue = QueueHelper.getMusicIndexOnQueue(mPlayingQueue, queueId); - - // play the music - handlePlayRequest(); - } - } - - @Override - public void onPlayFromMediaId(String mediaId, Bundle extras) { - LogHelper.d(TAG, "playFromMediaId mediaId:", mediaId, " extras=", extras); - - // The mediaId used here is not the unique musicId. This one comes from the - // MediaBrowser, and is actually a "hierarchy-aware mediaID": a concatenation of - // the hierarchy in MediaBrowser and the actual unique musicID. This is necessary - // so we can build the correct playing queue, based on where the track was - // selected from. - mPlayingQueue = QueueHelper.getPlayingQueue(mediaId, mMusicProvider); - mSession.setQueue(mPlayingQueue); - String queueTitle = getString(R.string.browse_musics_by_genre_subtitle, - MediaIDHelper.extractBrowseCategoryValueFromMediaID(mediaId)); - mSession.setQueueTitle(queueTitle); - - if (mPlayingQueue != null && !mPlayingQueue.isEmpty()) { - String uniqueMusicID = MediaIDHelper.extractMusicIDFromMediaID(mediaId); - // set the current index on queue from the music Id: - mCurrentIndexOnQueue = QueueHelper.getMusicIndexOnQueue( - mPlayingQueue, uniqueMusicID); - - // play the music - handlePlayRequest(); - } - } - - @Override - public void onPause() { - LogHelper.d(TAG, "pause. current state=" + mState); - handlePauseRequest(); - } - - @Override - public void onStop() { - LogHelper.d(TAG, "stop. current state=" + mState); - handleStopRequest(null); - } - - @Override - public void onSkipToNext() { - LogHelper.d(TAG, "skipToNext"); - mCurrentIndexOnQueue++; - if (mPlayingQueue != null && mCurrentIndexOnQueue >= mPlayingQueue.size()) { - mCurrentIndexOnQueue = 0; - } - if (QueueHelper.isIndexPlayable(mCurrentIndexOnQueue, mPlayingQueue)) { - mState = PlaybackState.STATE_PLAYING; - handlePlayRequest(); - } else { - LogHelper.e(TAG, "skipToNext: cannot skip to next. next Index=" + - mCurrentIndexOnQueue + " queue length=" + - (mPlayingQueue == null ? "null" : mPlayingQueue.size())); - handleStopRequest("Cannot skip"); - } - } - - @Override - public void onSkipToPrevious() { - LogHelper.d(TAG, "skipToPrevious"); - - mCurrentIndexOnQueue--; - if (mPlayingQueue != null && mCurrentIndexOnQueue < 0) { - // This sample's behavior: skipping to previous when in first song restarts the - // first song. - mCurrentIndexOnQueue = 0; - } - if (QueueHelper.isIndexPlayable(mCurrentIndexOnQueue, mPlayingQueue)) { - mState = PlaybackState.STATE_PLAYING; - handlePlayRequest(); - } else { - LogHelper.e(TAG, "skipToPrevious: cannot skip to previous. previous Index=" + - mCurrentIndexOnQueue + " queue length=" + - (mPlayingQueue == null ? "null" : mPlayingQueue.size())); - handleStopRequest("Cannot skip"); - } - } - - @Override - public void onCustomAction(String action, Bundle extras) { - if (CUSTOM_ACTION_THUMBS_UP.equals(action)) { - LogHelper.i(TAG, "onCustomAction: favorite for current track"); - MediaMetadata track = getCurrentPlayingMusic(); - if (track != null) { - String mediaId = track.getString(MediaMetadata.METADATA_KEY_MEDIA_ID); - mMusicProvider.setFavorite(mediaId, !mMusicProvider.isFavorite(mediaId)); - } - updatePlaybackState(null); - } else { - LogHelper.e(TAG, "Unsupported action: ", action); - } - - } - - @Override - public void onPlayFromSearch(String query, Bundle extras) { - LogHelper.d(TAG, "playFromSearch query=", query); - - mPlayingQueue = QueueHelper.getPlayingQueueFromSearch(query, mMusicProvider); - LogHelper.d(TAG, "playFromSearch playqueue.length=" + mPlayingQueue.size()); - mSession.setQueue(mPlayingQueue); - - if (mPlayingQueue != null && !mPlayingQueue.isEmpty()) { - - // start playing from the beginning of the queue - mCurrentIndexOnQueue = 0; - - handlePlayRequest(); - } - } - } - - - - // ********* MediaPlayer listeners: - - /* - * Called when media player is done playing current song. - * @see android.media.MediaPlayer.OnCompletionListener - */ - @Override - public void onCompletion(MediaPlayer player) { - LogHelper.d(TAG, "onCompletion from MediaPlayer"); - // The media player finished playing the current song, so we go ahead - // and start the next. - if (mPlayingQueue != null && !mPlayingQueue.isEmpty()) { - // In this sample, we restart the playing queue when it gets to the end: - mCurrentIndexOnQueue++; - if (mCurrentIndexOnQueue >= mPlayingQueue.size()) { - mCurrentIndexOnQueue = 0; - } - handlePlayRequest(); - } else { - // If there is nothing to play, we stop and release the resources: - handleStopRequest(null); - } - } - - /* - * Called when media player is done preparing. - * @see android.media.MediaPlayer.OnPreparedListener - */ - @Override - public void onPrepared(MediaPlayer player) { - LogHelper.d(TAG, "onPrepared from MediaPlayer"); - // The media player is done preparing. That means we can start playing if we - // have audio focus. - configMediaPlayerState(); - } - - /** - * Called when there's an error playing media. When this happens, the media - * player goes to the Error state. We warn the user about the error and - * reset the media player. - * - * @see android.media.MediaPlayer.OnErrorListener - */ - @Override - public boolean onError(MediaPlayer mp, int what, int extra) { - LogHelper.e(TAG, "Media player error: what=" + what + ", extra=" + extra); - handleStopRequest("MediaPlayer error " + what + " (" + extra + ")"); - return true; // true indicates we handled the error - } - - - - - // ********* OnAudioFocusChangeListener listener: - - - /** - * Called by AudioManager on audio focus changes. - */ - @Override - public void onAudioFocusChange(int focusChange) { - LogHelper.d(TAG, "onAudioFocusChange. focusChange=" + focusChange); - if (focusChange == AudioManager.AUDIOFOCUS_GAIN) { - // We have gained focus: - mAudioFocus = AudioFocus.Focused; - - } else if (focusChange == AudioManager.AUDIOFOCUS_LOSS || - focusChange == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT || - focusChange == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK) { - // We have lost focus. If we can duck (low playback volume), we can keep playing. - // Otherwise, we need to pause the playback. - boolean canDuck = focusChange == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK; - mAudioFocus = canDuck ? AudioFocus.NoFocusCanDuck : AudioFocus.NoFocusNoDuck; - - // If we are playing, we need to reset media player by calling configMediaPlayerState - // with mAudioFocus properly set. - if (mState == PlaybackState.STATE_PLAYING && !canDuck) { - // If we don't have audio focus and can't duck, we save the information that - // we were playing, so that we can resume playback once we get the focus back. - mPlayOnFocusGain = true; - } - } else { - LogHelper.e(TAG, "onAudioFocusChange: Ignoring unsupported focusChange: " + focusChange); - } - - configMediaPlayerState(); - } - - - - // ********* private methods: - - /** - * Handle a request to play music - */ - private void handlePlayRequest() { - LogHelper.d(TAG, "handlePlayRequest: mState=" + mState); - - mDelayedStopHandler.removeCallbacksAndMessages(null); - if (!mServiceStarted) { - LogHelper.v(TAG, "Starting service"); - // The MusicService needs to keep running even after the calling MediaBrowser - // is disconnected. Call startService(Intent) and then stopSelf(..) when we no longer - // need to play media. - startService(new Intent(getApplicationContext(), MusicService.class)); - mServiceStarted = true; - } - - mPlayOnFocusGain = true; - tryToGetAudioFocus(); - - if (!mSession.isActive()) { - mSession.setActive(true); - } - - // actually play the song - if (mState == PlaybackState.STATE_PAUSED) { - // If we're paused, just continue playback and restore the - // 'foreground service' state. - configMediaPlayerState(); - } else { - // If we're stopped or playing a song, - // just go ahead to the new song and (re)start playing - playCurrentSong(); - } - } - - - /** - * Handle a request to pause music - */ - private void handlePauseRequest() { - LogHelper.d(TAG, "handlePauseRequest: mState=" + mState); - - if (mState == PlaybackState.STATE_PLAYING) { - // Pause media player and cancel the 'foreground service' state. - mState = PlaybackState.STATE_PAUSED; - if (mMediaPlayer.isPlaying()) { - mMediaPlayer.pause(); - } - // while paused, retain the MediaPlayer but give up audio focus - relaxResources(false); - giveUpAudioFocus(); - } - updatePlaybackState(null); - } - - /** - * Handle a request to stop music - */ - private void handleStopRequest(String withError) { - LogHelper.d(TAG, "handleStopRequest: mState=" + mState + " error=", withError); - mState = PlaybackState.STATE_STOPPED; - - // let go of all resources... - relaxResources(true); - giveUpAudioFocus(); - updatePlaybackState(withError); - - mMediaNotification.stopNotification(); - - // service is no longer necessary. Will be started again if needed. - stopSelf(); - mServiceStarted = false; - } - - /** - * Releases resources used by the service for playback. This includes the - * "foreground service" status, the wake locks and possibly the MediaPlayer. - * - * @param releaseMediaPlayer Indicates whether the Media Player should also - * be released or not - */ - private void relaxResources(boolean releaseMediaPlayer) { - LogHelper.d(TAG, "relaxResources. releaseMediaPlayer=" + releaseMediaPlayer); - // stop being a foreground service - stopForeground(true); - - // reset the delayed stop handler. - mDelayedStopHandler.removeCallbacksAndMessages(null); - mDelayedStopHandler.sendEmptyMessageDelayed(0, STOP_DELAY); - - // stop and release the Media Player, if it's available - if (releaseMediaPlayer && mMediaPlayer != null) { - mMediaPlayer.reset(); - mMediaPlayer.release(); - mMediaPlayer = null; - } - - // we can also release the Wifi lock, if we're holding it - if (mWifiLock.isHeld()) { - mWifiLock.release(); - } - } - - /** - * Reconfigures MediaPlayer according to audio focus settings and - * starts/restarts it. This method starts/restarts the MediaPlayer - * respecting the current audio focus state. So if we have focus, it will - * play normally; if we don't have focus, it will either leave the - * MediaPlayer paused or set it to a low volume, depending on what is - * allowed by the current focus settings. This method assumes mPlayer != - * null, so if you are calling it, you have to do so from a context where - * you are sure this is the case. - */ - private void configMediaPlayerState() { - LogHelper.d(TAG, "configAndStartMediaPlayer. mAudioFocus=" + mAudioFocus); - if (mAudioFocus == AudioFocus.NoFocusNoDuck) { - // If we don't have audio focus and can't duck, we have to pause, - if (mState == PlaybackState.STATE_PLAYING) { - handlePauseRequest(); - } - } else { // we have audio focus: - if (mAudioFocus == AudioFocus.NoFocusCanDuck) { - mMediaPlayer.setVolume(VOLUME_DUCK, VOLUME_DUCK); // we'll be relatively quiet - } else { - mMediaPlayer.setVolume(VOLUME_NORMAL, VOLUME_NORMAL); // we can be loud again - } - // If we were playing when we lost focus, we need to resume playing. - if (mPlayOnFocusGain) { - if (!mMediaPlayer.isPlaying()) { - LogHelper.d(TAG, "configAndStartMediaPlayer startMediaPlayer."); - mMediaPlayer.start(); - } - mPlayOnFocusGain = false; - mState = PlaybackState.STATE_PLAYING; - } - } - updatePlaybackState(null); - } - - /** - * Makes sure the media player exists and has been reset. This will create - * the media player if needed, or reset the existing media player if one - * already exists. - */ - private void createMediaPlayerIfNeeded() { - LogHelper.d(TAG, "createMediaPlayerIfNeeded. needed? " + (mMediaPlayer==null)); - if (mMediaPlayer == null) { - mMediaPlayer = new MediaPlayer(); - - // Make sure the media player will acquire a wake-lock while - // playing. If we don't do that, the CPU might go to sleep while the - // song is playing, causing playback to stop. - mMediaPlayer.setWakeMode(getApplicationContext(), PowerManager.PARTIAL_WAKE_LOCK); - - // we want the media player to notify us when it's ready preparing, - // and when it's done playing: - mMediaPlayer.setOnPreparedListener(this); - mMediaPlayer.setOnCompletionListener(this); - mMediaPlayer.setOnErrorListener(this); - } else { - mMediaPlayer.reset(); - } - } - - /** - * Starts playing the current song in the playing queue. - */ - void playCurrentSong() { - MediaMetadata track = getCurrentPlayingMusic(); - if (track == null) { - LogHelper.e(TAG, "playSong: ignoring request to play next song, because cannot" + - " find it." + - " currentIndex=" + mCurrentIndexOnQueue + - " playQueue.size=" + (mPlayingQueue==null?"null": mPlayingQueue.size())); - return; - } - String source = track.getString(MusicProvider.CUSTOM_METADATA_TRACK_SOURCE); - LogHelper.d(TAG, "playSong: current (" + mCurrentIndexOnQueue + ") in playingQueue. " + - " musicId=" + track.getString(MediaMetadata.METADATA_KEY_MEDIA_ID) + - " source=" + source); - - mState = PlaybackState.STATE_STOPPED; - relaxResources(false); // release everything except MediaPlayer - - try { - createMediaPlayerIfNeeded(); - - mState = PlaybackState.STATE_BUFFERING; - - mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC); - mMediaPlayer.setDataSource(source); - - // Starts preparing the media player in the background. When - // it's done, it will call our OnPreparedListener (that is, - // the onPrepared() method on this class, since we set the - // listener to 'this'). Until the media player is prepared, - // we *cannot* call start() on it! - mMediaPlayer.prepareAsync(); - - // If we are streaming from the internet, we want to hold a - // Wifi lock, which prevents the Wifi radio from going to - // sleep while the song is playing. - mWifiLock.acquire(); - - updatePlaybackState(null); - updateMetadata(); - - } catch (IOException ex) { - LogHelper.e(TAG, ex, "IOException playing song"); - updatePlaybackState(ex.getMessage()); - } - } - - - - private void updateMetadata() { - if (!QueueHelper.isIndexPlayable(mCurrentIndexOnQueue, mPlayingQueue)) { - LogHelper.e(TAG, "Can't retrieve current metadata."); - mState = PlaybackState.STATE_ERROR; - updatePlaybackState(getResources().getString(R.string.error_no_metadata)); - return; - } - MediaSession.QueueItem queueItem = mPlayingQueue.get(mCurrentIndexOnQueue); - String mediaId = queueItem.getDescription().getMediaId(); - MediaMetadata track = mMusicProvider.getMusic(mediaId); - String trackId = track.getString(MediaMetadata.METADATA_KEY_MEDIA_ID); - if (!mediaId.equals(trackId)) { - throw new IllegalStateException("track ID (" + trackId + ") " + - "should match mediaId (" + mediaId + ")"); - } - LogHelper.d(TAG, "Updating metadata for MusicID= " + mediaId); - mSession.setMetadata(track); - } - - - /** - * Update the current media player state, optionally showing an error message. - * - * @param error if not null, error message to present to the user. - * - */ - private void updatePlaybackState(String error) { - - LogHelper.d(TAG, "updatePlaybackState, setting session playback state to " + mState); - long position = PlaybackState.PLAYBACK_POSITION_UNKNOWN; - if (mMediaPlayer != null && mMediaPlayer.isPlaying()) { - position = mMediaPlayer.getCurrentPosition(); - } - PlaybackState.Builder stateBuilder = new PlaybackState.Builder() - .setActions(getAvailableActions()); - - setCustomAction(stateBuilder); - - // If there is an error message, send it to the playback state: - if (error != null) { - // Error states are really only supposed to be used for errors that cause playback to - // stop unexpectedly and persist until the user takes action to fix it. - stateBuilder.setErrorMessage(error); - mState = PlaybackState.STATE_ERROR; - } - stateBuilder.setState(mState, position, 1.0f, SystemClock.elapsedRealtime()); - - // Set the activeQueueItemId if the current index is valid. - if (QueueHelper.isIndexPlayable(mCurrentIndexOnQueue, mPlayingQueue)) { - MediaSession.QueueItem item = mPlayingQueue.get(mCurrentIndexOnQueue); - stateBuilder.setActiveQueueItemId(item.getQueueId()); - } - - mSession.setPlaybackState(stateBuilder.build()); - - if (mState == PlaybackState.STATE_PLAYING || mState == PlaybackState.STATE_PAUSED) { - mMediaNotification.startNotification(); - } - } - - private void setCustomAction(PlaybackState.Builder stateBuilder) { - MediaMetadata currentMusic = getCurrentPlayingMusic(); - if (currentMusic != null) { - // Set appropriate "Favorite" icon on Custom action: - String mediaId = currentMusic.getString(MediaMetadata.METADATA_KEY_MEDIA_ID); - int favoriteIcon = R.drawable.ic_star_off; - if (mMusicProvider.isFavorite(mediaId)) { - favoriteIcon = R.drawable.ic_star_on; - } - LogHelper.d(TAG, "updatePlaybackState, setting Favorite custom action of music ", - mediaId, " current favorite=", mMusicProvider.isFavorite(mediaId)); - stateBuilder.addCustomAction(CUSTOM_ACTION_THUMBS_UP, getString(R.string.favorite), - favoriteIcon); - } - } - - private long getAvailableActions() { - long actions = PlaybackState.ACTION_PLAY | PlaybackState.ACTION_PLAY_FROM_MEDIA_ID | - PlaybackState.ACTION_PLAY_FROM_SEARCH; - if (mPlayingQueue == null || mPlayingQueue.isEmpty()) { - return actions; - } - if (mState == PlaybackState.STATE_PLAYING) { - actions |= PlaybackState.ACTION_PAUSE; - } - if (mCurrentIndexOnQueue > 0) { - actions |= PlaybackState.ACTION_SKIP_TO_PREVIOUS; - } - if (mCurrentIndexOnQueue < mPlayingQueue.size() - 1) { - actions |= PlaybackState.ACTION_SKIP_TO_NEXT; - } - return actions; - } - - private MediaMetadata getCurrentPlayingMusic() { - if (QueueHelper.isIndexPlayable(mCurrentIndexOnQueue, mPlayingQueue)) { - MediaSession.QueueItem item = mPlayingQueue.get(mCurrentIndexOnQueue); - if (item != null) { - LogHelper.d(TAG, "getCurrentPlayingMusic for musicId=", - item.getDescription().getMediaId()); - return mMusicProvider.getMusic(item.getDescription().getMediaId()); - } - } - return null; - } - - /** - * Try to get the system audio focus. - */ - void tryToGetAudioFocus() { - LogHelper.d(TAG, "tryToGetAudioFocus"); - if (mAudioFocus != AudioFocus.Focused) { - int result = mAudioManager.requestAudioFocus(this, AudioManager.STREAM_MUSIC, - AudioManager.AUDIOFOCUS_GAIN); - if (result == AudioManager.AUDIOFOCUS_REQUEST_GRANTED) { - mAudioFocus = AudioFocus.Focused; - } - } - } - - /** - * Give up the audio focus. - */ - void giveUpAudioFocus() { - LogHelper.d(TAG, "giveUpAudioFocus"); - if (mAudioFocus == AudioFocus.Focused) { - if (mAudioManager.abandonAudioFocus(this) == AudioManager.AUDIOFOCUS_REQUEST_GRANTED) { - mAudioFocus = AudioFocus.NoFocusNoDuck; - } - } - } -} diff --git a/MusicDemo/src/main/java/com/example/android/musicservicedemo/QueueAdapter.java b/MusicDemo/src/main/java/com/example/android/musicservicedemo/QueueAdapter.java deleted file mode 100644 index d1f6ac5..0000000 --- a/MusicDemo/src/main/java/com/example/android/musicservicedemo/QueueAdapter.java +++ /dev/null @@ -1,82 +0,0 @@ -/* - * Copyright (C) 2014 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.example.android.musicservicedemo; - -import android.app.Activity; -import android.media.session.MediaSession; -import android.view.LayoutInflater; -import android.view.View; -import android.view.ViewGroup; -import android.widget.ArrayAdapter; -import android.widget.ImageView; -import android.widget.TextView; - -import java.util.ArrayList; - -/** - * A list adapter for items in a queue - */ -public class QueueAdapter extends ArrayAdapter<MediaSession.QueueItem> { - - // The currently selected/active queue item Id. - private long mActiveQueueItemId = MediaSession.QueueItem.UNKNOWN_ID; - - public QueueAdapter(Activity context) { - super(context, R.layout.media_list_item, new ArrayList<MediaSession.QueueItem>()); - } - - public void setActiveQueueItemId(long id) { - this.mActiveQueueItemId = id; - } - - private static class ViewHolder { - ImageView mImageView; - TextView mTitleView; - TextView mDescriptionView; - } - - public View getView(int position, View convertView, ViewGroup parent) { - ViewHolder holder; - - if (convertView == null) { - convertView = LayoutInflater.from(getContext()) - .inflate(R.layout.media_list_item, parent, false); - holder = new ViewHolder(); - holder.mImageView = (ImageView) convertView.findViewById(R.id.play_eq); - holder.mTitleView = (TextView) convertView.findViewById(R.id.title); - holder.mDescriptionView = (TextView) convertView.findViewById(R.id.description); - convertView.setTag(holder); - } else { - holder = (ViewHolder) convertView.getTag(); - } - - MediaSession.QueueItem item = getItem(position); - holder.mTitleView.setText(item.getDescription().getTitle()); - if (item.getDescription().getDescription() != null) { - holder.mDescriptionView.setText(item.getDescription().getDescription()); - } - - // If the itemId matches the active Id then use a different icon - if (mActiveQueueItemId == item.getQueueId()) { - holder.mImageView.setImageDrawable( - getContext().getDrawable(R.drawable.ic_equalizer_white_24dp)); - } else { - holder.mImageView.setImageDrawable( - getContext().getDrawable(R.drawable.ic_play_arrow_white_24dp)); - } - return convertView; - } -} diff --git a/MusicDemo/src/main/java/com/example/android/musicservicedemo/QueueFragment.java b/MusicDemo/src/main/java/com/example/android/musicservicedemo/QueueFragment.java deleted file mode 100644 index 5d2525b..0000000 --- a/MusicDemo/src/main/java/com/example/android/musicservicedemo/QueueFragment.java +++ /dev/null @@ -1,295 +0,0 @@ -/* - * Copyright (C) 2014 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.example.android.musicservicedemo; - -import android.app.Fragment; -import android.content.ComponentName; -import android.media.browse.MediaBrowser; -import android.media.session.MediaController; -import android.media.session.MediaSession; -import android.media.session.PlaybackState; -import android.os.Bundle; -import android.view.LayoutInflater; -import android.view.View; -import android.view.ViewGroup; -import android.widget.AdapterView; -import android.widget.ImageButton; -import android.widget.ListView; - -import com.example.android.musicservicedemo.utils.LogHelper; - -import java.util.List; - -/** - * A class that shows the Media Queue to the user. - */ -public class QueueFragment extends Fragment { - - private static final String TAG = QueueFragment.class.getSimpleName(); - - private ImageButton mSkipNext; - private ImageButton mSkipPrevious; - private ImageButton mPlayPause; - - private MediaBrowser mMediaBrowser; - private MediaController.TransportControls mTransportControls; - private MediaController mMediaController; - private PlaybackState mPlaybackState; - - private QueueAdapter mQueueAdapter; - - private MediaBrowser.ConnectionCallback mConnectionCallback = - new MediaBrowser.ConnectionCallback() { - @Override - public void onConnected() { - LogHelper.d(TAG, "onConnected: session token ", mMediaBrowser.getSessionToken()); - - if (mMediaBrowser.getSessionToken() == null) { - throw new IllegalArgumentException("No Session token"); - } - - mMediaController = new MediaController(getActivity(), - mMediaBrowser.getSessionToken()); - mTransportControls = mMediaController.getTransportControls(); - mMediaController.registerCallback(mSessionCallback); - - getActivity().setMediaController(mMediaController); - mPlaybackState = mMediaController.getPlaybackState(); - - List<MediaSession.QueueItem> queue = mMediaController.getQueue(); - if (queue != null) { - mQueueAdapter.clear(); - mQueueAdapter.notifyDataSetInvalidated(); - mQueueAdapter.addAll(queue); - mQueueAdapter.notifyDataSetChanged(); - } - onPlaybackStateChanged(mPlaybackState); - } - - @Override - public void onConnectionFailed() { - LogHelper.d(TAG, "onConnectionFailed"); - } - - @Override - public void onConnectionSuspended() { - LogHelper.d(TAG, "onConnectionSuspended"); - mMediaController.unregisterCallback(mSessionCallback); - mTransportControls = null; - mMediaController = null; - getActivity().setMediaController(null); - } - }; - - // Receive callbacks from the MediaController. Here we update our state such as which queue - // is being shown, the current title and description and the PlaybackState. - private MediaController.Callback mSessionCallback = new MediaController.Callback() { - - @Override - public void onSessionDestroyed() { - LogHelper.d(TAG, "Session destroyed. Need to fetch a new Media Session"); - } - - @Override - public void onPlaybackStateChanged(PlaybackState state) { - if (state == null) { - return; - } - LogHelper.d(TAG, "Received playback state change to state ", state.getState()); - mPlaybackState = state; - QueueFragment.this.onPlaybackStateChanged(state); - } - - @Override - public void onQueueChanged(List<MediaSession.QueueItem> queue) { - LogHelper.d(TAG, "onQueueChanged ", queue); - if (queue != null) { - mQueueAdapter.clear(); - mQueueAdapter.notifyDataSetInvalidated(); - mQueueAdapter.addAll(queue); - mQueueAdapter.notifyDataSetChanged(); - } - } - }; - - public static QueueFragment newInstance() { - return new QueueFragment(); - } - - @Override - public View onCreateView(LayoutInflater inflater, ViewGroup container, - Bundle savedInstanceState) { - View rootView = inflater.inflate(R.layout.fragment_list, container, false); - - mSkipPrevious = (ImageButton) rootView.findViewById(R.id.skip_previous); - mSkipPrevious.setEnabled(false); - mSkipPrevious.setOnClickListener(mButtonListener); - - mSkipNext = (ImageButton) rootView.findViewById(R.id.skip_next); - mSkipNext.setEnabled(false); - mSkipNext.setOnClickListener(mButtonListener); - - mPlayPause = (ImageButton) rootView.findViewById(R.id.play_pause); - mPlayPause.setEnabled(true); - mPlayPause.setOnClickListener(mButtonListener); - - mQueueAdapter = new QueueAdapter(getActivity()); - - ListView mListView = (ListView) rootView.findViewById(R.id.list_view); - mListView.setAdapter(mQueueAdapter); - mListView.setFocusable(true); - mListView.setOnItemClickListener(new AdapterView.OnItemClickListener() { - @Override - public void onItemClick(AdapterView<?> parent, View view, int position, long id) { - MediaSession.QueueItem item = mQueueAdapter.getItem(position); - mTransportControls.skipToQueueItem(item.getQueueId()); - } - }); - - mMediaBrowser = new MediaBrowser(getActivity(), - new ComponentName(getActivity(), MusicService.class), - mConnectionCallback, null); - - return rootView; - } - - @Override - public void onResume() { - super.onResume(); - if (mMediaBrowser != null) { - mMediaBrowser.connect(); - } - } - - @Override - public void onPause() { - super.onPause(); - if (mMediaController != null) { - mMediaController.unregisterCallback(mSessionCallback); - } - if (mMediaBrowser != null) { - mMediaBrowser.disconnect(); - } - } - - - private void onPlaybackStateChanged(PlaybackState state) { - LogHelper.d(TAG, "onPlaybackStateChanged ", state); - if (state == null) { - return; - } - mQueueAdapter.setActiveQueueItemId(state.getActiveQueueItemId()); - mQueueAdapter.notifyDataSetChanged(); - boolean enablePlay = false; - StringBuilder statusBuilder = new StringBuilder(); - switch (state.getState()) { - case PlaybackState.STATE_PLAYING: - statusBuilder.append("playing"); - enablePlay = false; - break; - case PlaybackState.STATE_PAUSED: - statusBuilder.append("paused"); - enablePlay = true; - break; - case PlaybackState.STATE_STOPPED: - statusBuilder.append("ended"); - enablePlay = true; - break; - case PlaybackState.STATE_ERROR: - statusBuilder.append("error: ").append(state.getErrorMessage()); - break; - case PlaybackState.STATE_BUFFERING: - statusBuilder.append("buffering"); - break; - case PlaybackState.STATE_NONE: - statusBuilder.append("none"); - enablePlay = false; - break; - case PlaybackState.STATE_CONNECTING: - statusBuilder.append("connecting"); - break; - default: - statusBuilder.append(mPlaybackState); - } - statusBuilder.append(" -- At position: ").append(state.getPosition()); - LogHelper.d(TAG, statusBuilder.toString()); - - if (enablePlay) { - mPlayPause.setImageDrawable( - getActivity().getDrawable(R.drawable.ic_play_arrow_white_24dp)); - } else { - mPlayPause.setImageDrawable(getActivity().getDrawable(R.drawable.ic_pause_white_24dp)); - } - - mSkipPrevious.setEnabled((state.getActions() & PlaybackState.ACTION_SKIP_TO_PREVIOUS) != 0); - mSkipNext.setEnabled((state.getActions() & PlaybackState.ACTION_SKIP_TO_NEXT) != 0); - - LogHelper.d(TAG, "Queue From MediaController *** Title " + - mMediaController.getQueueTitle() + "\n: Queue: " + mMediaController.getQueue() + - "\n Metadata " + mMediaController.getMetadata()); - } - - private View.OnClickListener mButtonListener = new View.OnClickListener() { - @Override - public void onClick(View v) { - final int state = mPlaybackState == null ? - PlaybackState.STATE_NONE : mPlaybackState.getState(); - switch (v.getId()) { - case R.id.play_pause: - LogHelper.d(TAG, "Play button pressed, in state " + state); - if (state == PlaybackState.STATE_PAUSED || - state == PlaybackState.STATE_STOPPED || - state == PlaybackState.STATE_NONE) { - playMedia(); - } else if (state == PlaybackState.STATE_PLAYING) { - pauseMedia(); - } - break; - case R.id.skip_previous: - LogHelper.d(TAG, "Start button pressed, in state " + state); - skipToPrevious(); - break; - case R.id.skip_next: - skipToNext(); - break; - } - } - }; - - private void playMedia() { - if (mTransportControls != null) { - mTransportControls.play(); - } - } - - private void pauseMedia() { - if (mTransportControls != null) { - mTransportControls.pause(); - } - } - - private void skipToPrevious() { - if (mTransportControls != null) { - mTransportControls.skipToPrevious(); - } - } - - private void skipToNext() { - if (mTransportControls != null) { - mTransportControls.skipToNext(); - } - } -} diff --git a/MusicDemo/src/main/java/com/example/android/musicservicedemo/model/MusicProvider.java b/MusicDemo/src/main/java/com/example/android/musicservicedemo/model/MusicProvider.java deleted file mode 100644 index dd89c2d..0000000 --- a/MusicDemo/src/main/java/com/example/android/musicservicedemo/model/MusicProvider.java +++ /dev/null @@ -1,296 +0,0 @@ -/* - * Copyright (C) 2014 Google Inc. All Rights Reserved. - * - * 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.example.android.musicservicedemo.model; - -import android.media.MediaMetadata; -import android.os.AsyncTask; - -import com.example.android.musicservicedemo.utils.LogHelper; - -import org.json.JSONArray; -import org.json.JSONException; -import org.json.JSONObject; - -import java.io.BufferedInputStream; -import java.io.BufferedReader; -import java.io.IOException; -import java.io.InputStream; -import java.io.InputStreamReader; -import java.net.URLConnection; -import java.util.ArrayList; -import java.util.HashMap; -import java.util.HashSet; -import java.util.List; -import java.util.concurrent.locks.ReentrantLock; - -/** - * Utility class to get a list of MusicTrack's based on a server-side JSON - * configuration. - */ -public class MusicProvider { - - private static final String TAG = "MusicProvider"; - - private static final String CATALOG_URL = "http://storage.googleapis.com/automotive-media/music.json"; - - public static final String CUSTOM_METADATA_TRACK_SOURCE = "__SOURCE__"; - - private static String JSON_MUSIC = "music"; - private static String JSON_TITLE = "title"; - private static String JSON_ALBUM = "album"; - private static String JSON_ARTIST = "artist"; - private static String JSON_GENRE = "genre"; - private static String JSON_SOURCE = "source"; - private static String JSON_IMAGE = "image"; - private static String JSON_TRACK_NUMBER = "trackNumber"; - private static String JSON_TOTAL_TRACK_COUNT = "totalTrackCount"; - private static String JSON_DURATION = "duration"; - - private final ReentrantLock initializationLock = new ReentrantLock(); - - // Categorized caches for music track data: - private final HashMap<String, List<MediaMetadata>> mMusicListByGenre; - private final HashMap<String, MediaMetadata> mMusicListById; - - private final HashSet<String> mFavoriteTracks; - - enum State { - NON_INITIALIZED, INITIALIZING, INITIALIZED; - } - - private State mCurrentState = State.NON_INITIALIZED; - - - public interface Callback { - void onMusicCatalogReady(boolean success); - } - - public MusicProvider() { - mMusicListByGenre = new HashMap<>(); - mMusicListById = new HashMap<>(); - mFavoriteTracks = new HashSet<>(); - } - - /** - * Get an iterator over the list of genres - * - * @return - */ - public Iterable<String> getGenres() { - if (mCurrentState != State.INITIALIZED) { - return new ArrayList<String>(0); - } - return mMusicListByGenre.keySet(); - } - - /** - * Get music tracks of the given genre - * - * @return - */ - public Iterable<MediaMetadata> getMusicsByGenre(String genre) { - if (mCurrentState != State.INITIALIZED || !mMusicListByGenre.containsKey(genre)) { - return new ArrayList<MediaMetadata>(); - } - return mMusicListByGenre.get(genre); - } - - /** - * Very basic implementation of a search that filter music tracks which title containing - * the given query. - * - * @return - */ - public Iterable<MediaMetadata> searchMusics(String titleQuery) { - ArrayList<MediaMetadata> result = new ArrayList<>(); - if (mCurrentState != State.INITIALIZED) { - return result; - } - titleQuery = titleQuery.toLowerCase(); - for (MediaMetadata track: mMusicListById.values()) { - if (track.getString(MediaMetadata.METADATA_KEY_TITLE).toLowerCase() - .contains(titleQuery)) { - result.add(track); - } - } - return result; - } - - public MediaMetadata getMusic(String mediaId) { - return mMusicListById.get(mediaId); - } - - public void setFavorite(String mediaId, boolean favorite) { - if (favorite) { - mFavoriteTracks.add(mediaId); - } else { - mFavoriteTracks.remove(mediaId); - } - } - - public boolean isFavorite(String musicId) { - return mFavoriteTracks.contains(musicId); - } - - public boolean isInitialized() { - return mCurrentState == State.INITIALIZED; - } - - /** - * Get the list of music tracks from a server and caches the track information - * for future reference, keying tracks by mediaId and grouping by genre. - * - * @return - */ - public void retrieveMedia(final Callback callback) { - - if (mCurrentState == State.INITIALIZED) { - // Nothing to do, execute callback immediately - callback.onMusicCatalogReady(true); - return; - } - - // Asynchronously load the music catalog in a separate thread - new AsyncTask() { - @Override - protected Object doInBackground(Object[] objects) { - retrieveMediaAsync(callback); - return null; - } - }.execute(); - } - - private void retrieveMediaAsync(Callback callback) { - initializationLock.lock(); - - try { - if (mCurrentState == State.NON_INITIALIZED) { - mCurrentState = State.INITIALIZING; - - int slashPos = CATALOG_URL.lastIndexOf('/'); - String path = CATALOG_URL.substring(0, slashPos + 1); - JSONObject jsonObj = parseUrl(CATALOG_URL); - - JSONArray tracks = jsonObj.getJSONArray(JSON_MUSIC); - if (tracks != null) { - for (int j = 0; j < tracks.length(); j++) { - MediaMetadata item = buildFromJSON(tracks.getJSONObject(j), path); - String genre = item.getString(MediaMetadata.METADATA_KEY_GENRE); - List<MediaMetadata> list = mMusicListByGenre.get(genre); - if (list == null) { - list = new ArrayList<>(); - } - list.add(item); - mMusicListByGenre.put(genre, list); - mMusicListById.put(item.getString(MediaMetadata.METADATA_KEY_MEDIA_ID), - item); - } - } - mCurrentState = State.INITIALIZED; - } - } catch (RuntimeException | JSONException e) { - LogHelper.e(TAG, e, "Could not retrieve music list"); - } finally { - if (mCurrentState != State.INITIALIZED) { - // Something bad happened, so we reset state to NON_INITIALIZED to allow - // retries (eg if the network connection is temporary unavailable) - mCurrentState = State.NON_INITIALIZED; - } - initializationLock.unlock(); - if (callback != null) { - callback.onMusicCatalogReady(mCurrentState == State.INITIALIZED); - } - } - } - - private MediaMetadata buildFromJSON(JSONObject json, String basePath) throws JSONException { - String title = json.getString(JSON_TITLE); - String album = json.getString(JSON_ALBUM); - String artist = json.getString(JSON_ARTIST); - String genre = json.getString(JSON_GENRE); - String source = json.getString(JSON_SOURCE); - String iconUrl = json.getString(JSON_IMAGE); - int trackNumber = json.getInt(JSON_TRACK_NUMBER); - int totalTrackCount = json.getInt(JSON_TOTAL_TRACK_COUNT); - int duration = json.getInt(JSON_DURATION) * 1000; // ms - - LogHelper.d(TAG, "Found music track: ", json); - - // Media is stored relative to JSON file - if (!source.startsWith("http")) { - source = basePath + source; - } - if (!iconUrl.startsWith("http")) { - iconUrl = basePath + iconUrl; - } - // Since we don't have a unique ID in the server, we fake one using the hashcode of - // the music source. In a real world app, this could come from the server. - String id = String.valueOf(source.hashCode()); - - // Adding the music source to the MediaMetadata (and consequently using it in the - // mediaSession.setMetadata) is not a good idea for a real world music app, because - // the session metadata can be accessed by notification listeners. This is done in this - // sample for convenience only. - return new MediaMetadata.Builder() - .putString(MediaMetadata.METADATA_KEY_MEDIA_ID, id) - .putString(CUSTOM_METADATA_TRACK_SOURCE, source) - .putString(MediaMetadata.METADATA_KEY_ALBUM, album) - .putString(MediaMetadata.METADATA_KEY_ARTIST, artist) - .putLong(MediaMetadata.METADATA_KEY_DURATION, duration) - .putString(MediaMetadata.METADATA_KEY_GENRE, genre) - .putString(MediaMetadata.METADATA_KEY_ALBUM_ART_URI, iconUrl) - .putString(MediaMetadata.METADATA_KEY_TITLE, title) - .putLong(MediaMetadata.METADATA_KEY_TRACK_NUMBER, trackNumber) - .putLong(MediaMetadata.METADATA_KEY_NUM_TRACKS, totalTrackCount) - .build(); - } - - /** - * Download a JSON file from a server, parse the content and return the JSON - * object. - * - * @param urlString - * @return - */ - private JSONObject parseUrl(String urlString) { - InputStream is = null; - try { - java.net.URL url = new java.net.URL(urlString); - URLConnection urlConnection = url.openConnection(); - is = new BufferedInputStream(urlConnection.getInputStream()); - BufferedReader reader = new BufferedReader(new InputStreamReader( - urlConnection.getInputStream(), "iso-8859-1"), 8); - StringBuilder sb = new StringBuilder(); - String line = null; - while ((line = reader.readLine()) != null) { - sb.append(line); - } - return new JSONObject(sb.toString()); - } catch (Exception e) { - LogHelper.e(TAG, "Failed to parse the json for media list", e); - return null; - } finally { - if (is != null) { - try { - is.close(); - } catch (IOException e) { - // ignore - } - } - } - } -}
\ No newline at end of file diff --git a/MusicDemo/src/main/java/com/example/android/musicservicedemo/utils/BitmapHelper.java b/MusicDemo/src/main/java/com/example/android/musicservicedemo/utils/BitmapHelper.java deleted file mode 100644 index 984de49..0000000 --- a/MusicDemo/src/main/java/com/example/android/musicservicedemo/utils/BitmapHelper.java +++ /dev/null @@ -1,77 +0,0 @@ -/* - * Copyright (C) 2014 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.example.android.musicservicedemo.utils; - -import android.graphics.Bitmap; -import android.graphics.BitmapFactory; - -import java.io.IOException; -import java.io.InputStream; -import java.net.HttpURLConnection; -import java.net.URL; - -public class BitmapHelper { - - // Bitmap size for album art in media notifications when there are more than 3 playback actions - public static final int MEDIA_ART_SMALL_WIDTH=64; - public static final int MEDIA_ART_SMALL_HEIGHT=64; - - // Bitmap size for album art in media notifications when there are no more than 3 playback actions - public static final int MEDIA_ART_BIG_WIDTH=128; - public static final int MEDIA_ART_BIG_HEIGHT=128; - - public static final Bitmap scaleBitmap(int scaleFactor, InputStream is) { - // Get the dimensions of the bitmap - BitmapFactory.Options bmOptions = new BitmapFactory.Options(); - - // Decode the image file into a Bitmap sized to fill the View - bmOptions.inJustDecodeBounds = false; - bmOptions.inSampleSize = scaleFactor; - - Bitmap bitmap = BitmapFactory.decodeStream(is, null, bmOptions); - return bitmap; - } - - public static final int findScaleFactor(int targetW, int targetH, InputStream is) { - // Get the dimensions of the bitmap - BitmapFactory.Options bmOptions = new BitmapFactory.Options(); - bmOptions.inJustDecodeBounds = true; - BitmapFactory.decodeStream(is, null, bmOptions); - int actualW = bmOptions.outWidth; - int actualH = bmOptions.outHeight; - - // Determine how much to scale down the image - return Math.min(actualW/targetW, actualH/targetH); - } - - public static final Bitmap fetchAndRescaleBitmap(String uri, int width, int height) - throws IOException { - URL url = new URL(uri); - HttpURLConnection httpConnection = (HttpURLConnection) url.openConnection(); - httpConnection.setDoInput(true); - httpConnection.connect(); - InputStream inputStream = httpConnection.getInputStream(); - int scaleFactor = findScaleFactor(width, height, inputStream); - - httpConnection = (HttpURLConnection) url.openConnection(); - httpConnection.setDoInput(true); - httpConnection.connect(); - inputStream = httpConnection.getInputStream(); - Bitmap bitmap = scaleBitmap(scaleFactor, inputStream); - return bitmap; - } - -} diff --git a/MusicDemo/src/main/java/com/example/android/musicservicedemo/utils/LogHelper.java b/MusicDemo/src/main/java/com/example/android/musicservicedemo/utils/LogHelper.java deleted file mode 100644 index 31f1aef..0000000 --- a/MusicDemo/src/main/java/com/example/android/musicservicedemo/utils/LogHelper.java +++ /dev/null @@ -1,67 +0,0 @@ -/* - * Copyright (C) 2014 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.example.android.musicservicedemo.utils; - -import android.util.Log; - -public class LogHelper { - public static void v(String tag, Object... messages) { - log(tag, Log.VERBOSE, null, messages); - } - - public static void d(String tag, Object... messages) { - log(tag, Log.DEBUG, null, messages); - } - - public static void i(String tag, Object... messages) { - log(tag, Log.INFO, null, messages); - } - - public static void w(String tag, Object... messages) { - log(tag, Log.WARN, null, messages); - } - - public static void w(String tag, Throwable t, Object... messages) { - log(tag, Log.WARN, t, messages); - } - - public static void e(String tag, Object... messages) { - log(tag, Log.ERROR, null, messages); - } - - public static void e(String tag, Throwable t, Object... messages) { - log(tag, Log.ERROR, t, messages); - } - - public static void log(String tag, int level, Throwable t, Object... messages) { - if (messages != null && Log.isLoggable(tag, level)) { - String message; - if (messages.length == 1) { - message = messages[0] == null ? null : messages[0].toString(); - } else { - StringBuilder sb = new StringBuilder(); - for (Object m: messages) { - sb.append(m); - } - if (t != null) { - sb.append("\n").append(Log.getStackTraceString(t)); - } - message = sb.toString(); - } - Log.println(level, tag, message); - } - } -} diff --git a/MusicDemo/src/main/java/com/example/android/musicservicedemo/utils/MediaIDHelper.java b/MusicDemo/src/main/java/com/example/android/musicservicedemo/utils/MediaIDHelper.java deleted file mode 100644 index 2406886..0000000 --- a/MusicDemo/src/main/java/com/example/android/musicservicedemo/utils/MediaIDHelper.java +++ /dev/null @@ -1,88 +0,0 @@ -/* - * Copyright (C) 2014 Google Inc. All Rights Reserved. - * - * 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.example.android.musicservicedemo.utils; - -import android.media.MediaMetadata; - -/** - * Utility class to help on queue related tasks. - */ -public class MediaIDHelper { - - private static final String TAG = "MediaIDHelper"; - - // Media IDs used on browseable items of MediaBrowser - public static final String MEDIA_ID_ROOT = "__ROOT__"; - public static final String MEDIA_ID_MUSICS_BY_GENRE = "__BY_GENRE__"; - - public static final String createTrackMediaID(String categoryType, String categoryValue, - MediaMetadata track) { - // MediaIDs are of the form <categoryType>/<categoryValue>|<musicUniqueId>, to make it easy to - // find the category (like genre) that a music was selected from, so we - // can correctly build the playing queue. This is specially useful when - // one music can appear in more than one list, like "by genre -> genre_1" - // and "by artist -> artist_1". - return categoryType + "/" + categoryValue + "|" + - track.getString(MediaMetadata.METADATA_KEY_MEDIA_ID); - } - - public static final String createBrowseCategoryMediaID(String categoryType, String categoryValue) { - return categoryType + "/" + categoryValue; - } - - /** - * Extracts unique musicID from the mediaID. mediaID is, by this sample's convention, a - * concatenation of category (eg "by_genre"), categoryValue (eg "Classical") and unique - * musicID. This is necessary so we know where the user selected the music from, when the music - * exists in more than one music list, and thus we are able to correctly build the playing queue. - * - * @param musicID - * @return - */ - public static final String extractMusicIDFromMediaID(String musicID) { - String[] segments = musicID.split("\\|", 2); - return segments.length == 2 ? segments[1] : null; - } - - /** - * Extracts category and categoryValue from the mediaID. mediaID is, by this sample's - * convention, a concatenation of category (eg "by_genre"), categoryValue (eg "Classical") and - * mediaID. This is necessary so we know where the user selected the music from, when the music - * exists in more than one music list, and thus we are able to correctly build the playing queue. - * - * @param mediaID - * @return - */ - public static final String[] extractBrowseCategoryFromMediaID(String mediaID) { - if (mediaID.indexOf('|') >= 0) { - mediaID = mediaID.split("\\|")[0]; - } - if (mediaID.indexOf('/') == 0) { - return new String[]{mediaID, null}; - } else { - return mediaID.split("/", 2); - } - } - - public static final String extractBrowseCategoryValueFromMediaID(String mediaID) { - String[] categoryAndValue = extractBrowseCategoryFromMediaID(mediaID); - if (categoryAndValue != null && categoryAndValue.length == 2) { - return categoryAndValue[1]; - } - return null; - } -}
\ No newline at end of file diff --git a/MusicDemo/src/main/java/com/example/android/musicservicedemo/utils/QueueHelper.java b/MusicDemo/src/main/java/com/example/android/musicservicedemo/utils/QueueHelper.java deleted file mode 100644 index 9a510fb..0000000 --- a/MusicDemo/src/main/java/com/example/android/musicservicedemo/utils/QueueHelper.java +++ /dev/null @@ -1,129 +0,0 @@ -/* - * Copyright (C) 2014 Google Inc. All Rights Reserved. - * - * 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.example.android.musicservicedemo.utils; - -import android.media.MediaMetadata; -import android.media.session.MediaSession; - -import com.example.android.musicservicedemo.model.MusicProvider; - -import java.util.ArrayList; -import java.util.Iterator; -import java.util.List; - -import static com.example.android.musicservicedemo.utils.MediaIDHelper.MEDIA_ID_MUSICS_BY_GENRE; - -/** - * Utility class to help on queue related tasks. - */ -public class QueueHelper { - - private static final String TAG = "QueueHelper"; - - public static final List<MediaSession.QueueItem> getPlayingQueue(String mediaId, - MusicProvider musicProvider) { - - // extract the category and unique music ID from the media ID: - String[] category = MediaIDHelper.extractBrowseCategoryFromMediaID(mediaId); - - // This sample only supports genre category. - if (!category[0].equals(MEDIA_ID_MUSICS_BY_GENRE) || category.length != 2) { - LogHelper.e(TAG, "Could not build a playing queue for this mediaId: ", mediaId); - return null; - } - - String categoryValue = category[1]; - LogHelper.e(TAG, "Creating playing queue for musics of genre ", categoryValue); - - List<MediaSession.QueueItem> queue = convertToQueue( - musicProvider.getMusicsByGenre(categoryValue)); - - return queue; - } - - public static final List<MediaSession.QueueItem> getPlayingQueueFromSearch(String query, - MusicProvider musicProvider) { - - LogHelper.e(TAG, "Creating playing queue for musics from search ", query); - - return convertToQueue(musicProvider.searchMusics(query)); - } - - - public static final int getMusicIndexOnQueue(Iterable<MediaSession.QueueItem> queue, - String mediaId) { - int index = 0; - for (MediaSession.QueueItem item: queue) { - if (mediaId.equals(item.getDescription().getMediaId())) { - return index; - } - index++; - } - return -1; - } - - public static final int getMusicIndexOnQueue(Iterable<MediaSession.QueueItem> queue, - long queueId) { - int index = 0; - for (MediaSession.QueueItem item: queue) { - if (queueId == item.getQueueId()) { - return index; - } - index++; - } - return -1; - } - - private static final List<MediaSession.QueueItem> convertToQueue( - Iterable<MediaMetadata> tracks) { - List<MediaSession.QueueItem> queue = new ArrayList<>(); - int count = 0; - for (MediaMetadata track : tracks) { - // We don't expect queues to change after created, so we use the item index as the - // queueId. Any other number unique in the queue would work. - MediaSession.QueueItem item = new MediaSession.QueueItem( - track.getDescription(), count++); - queue.add(item); - } - return queue; - - } - - /** - * Create a random queue. For simplicity sake, instead of a random queue, we create a - * queue using the first genre, - * - * @param musicProvider - * @return - */ - public static final List<MediaSession.QueueItem> getRandomQueue(MusicProvider musicProvider) { - Iterator<String> genres = musicProvider.getGenres().iterator(); - if (!genres.hasNext()) { - return new ArrayList<>(); - } - String genre = genres.next(); - Iterable<MediaMetadata> tracks = musicProvider.getMusicsByGenre(genre); - - return convertToQueue(tracks); - } - - - - public static final boolean isIndexPlayable(int index, List<MediaSession.QueueItem> queue) { - return (queue != null && index >= 0 && index < queue.size()); - } -} |