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Diffstat (limited to 'MusicDemo/src/main/java/com/example/android/musicservicedemo/MediaNotification.java')
| -rw-r--r-- | MusicDemo/src/main/java/com/example/android/musicservicedemo/MediaNotification.java | 381 |
1 files changed, 0 insertions, 381 deletions
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(); - } - -} |