| /* |
| * Copyright (C) 2007 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.android.music; |
| |
| import android.app.Activity; |
| import android.app.ListActivity; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.graphics.Color; |
| import android.graphics.drawable.Drawable; |
| import android.media.AudioManager; |
| import android.media.MediaDescription; |
| import android.media.MediaMetadata; |
| import android.media.browse.MediaBrowser; |
| import android.media.session.MediaController; |
| import android.media.session.MediaSession; |
| import android.os.Bundle; |
| import android.util.Log; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.view.Window; |
| import android.widget.*; |
| import com.android.music.utils.LogHelper; |
| import com.android.music.utils.MediaIDHelper; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /* |
| This activity shows when there is a need for |
| 1. Songs tab [withtab = true] |
| 2. Browse songs within an album [withtab = false] |
| 3. Browse songs within a playlist [withtab = false] |
| 4. Browse songs within now playing queue [withtab = false] |
| */ |
| public class TrackBrowserActivity extends ListActivity { |
| private static final String TAG = LogHelper.makeLogTag(TrackBrowserActivity.class); |
| private static final MediaBrowser.MediaItem DEFAULT_PARENT_ITEM = |
| new MediaBrowser.MediaItem(new MediaDescription.Builder() |
| .setMediaId(MediaIDHelper.MEDIA_ID_MUSICS_BY_SONG) |
| .setTitle("Songs") |
| .build(), |
| MediaBrowser.MediaItem.FLAG_BROWSABLE); |
| |
| // Underlining ListView of this Activity |
| private ListView mTrackList; |
| // The mediaId to be used for subscribing for children using the MediaBrowser. |
| private MediaBrowser.MediaItem mParentItem; |
| private MediaBrowser mMediaBrowser; |
| private TrackBrowseAdapter mBrowseListAdapter; |
| private boolean mWithTabs; |
| |
| /** |
| * Called when the activity is first created. |
| */ |
| @Override |
| public void onCreate(Bundle icicle) { |
| Log.d(TAG, "onCreate()"); |
| super.onCreate(icicle); |
| // Process past states |
| Intent intent = getIntent(); |
| if (icicle != null) { |
| LogHelper.d(TAG, "Launch by saved instance state"); |
| mParentItem = icicle.getParcelable(MusicUtils.TAG_PARENT_ITEM); |
| mWithTabs = icicle.getBoolean(MusicUtils.TAG_WITH_TABS); |
| MusicUtils.updateNowPlaying(this); |
| } else if (intent != null) { |
| LogHelper.d(TAG, "Launch by intent"); |
| mParentItem = intent.getExtras().getParcelable(MusicUtils.TAG_PARENT_ITEM); |
| mWithTabs = intent.getBooleanExtra(MusicUtils.TAG_WITH_TABS, false); |
| } |
| if (mParentItem == null) { |
| LogHelper.d(TAG, "Launch by default parameters"); |
| mParentItem = DEFAULT_PARENT_ITEM; |
| mWithTabs = true; |
| } |
| if (mWithTabs) { |
| requestWindowFeature(Window.FEATURE_NO_TITLE); |
| } |
| setTitle(mParentItem.getDescription().getTitle()); |
| setVolumeControlStream(AudioManager.STREAM_MUSIC); |
| |
| // Init layout |
| LogHelper.d(TAG, "init layout"); |
| setContentView(R.layout.media_picker_activity); |
| MusicUtils.updateButtonBar(this, R.id.songtab); |
| |
| // Init the ListView |
| Log.d(TAG, "Creating ListView"); |
| mTrackList = getListView(); |
| mTrackList.setCacheColorHint(0); |
| mTrackList.setTextFilterEnabled(true); |
| mBrowseListAdapter = (TrackBrowseAdapter) getLastNonConfigurationInstance(); |
| if (mBrowseListAdapter == null) { |
| mBrowseListAdapter = new TrackBrowseAdapter(this, R.layout.track_list_item); |
| } |
| setListAdapter(mBrowseListAdapter); |
| // don't set the album art until after the view has been layed out |
| mTrackList.post(new Runnable() { |
| public void run() { |
| mTrackList.setBackgroundColor(Color.WHITE); |
| mTrackList.setCacheColorHint(0); |
| } |
| }); |
| |
| // Create media browser |
| Log.d(TAG, "Creating MediaBrowser"); |
| mMediaBrowser = new MediaBrowser(this, new ComponentName(this, MediaPlaybackService.class), |
| mConnectionCallback, null); |
| } |
| |
| @Override |
| public void onStart() { |
| Log.d(TAG, "onStart()"); |
| super.onStart(); |
| mMediaBrowser.connect(); |
| } |
| |
| @Override |
| public void onStop() { |
| Log.d(TAG, "onStop()"); |
| super.onStop(); |
| mMediaBrowser.disconnect(); |
| } |
| |
| @Override |
| public void onDestroy() { |
| Log.d(TAG, "onDestroy()"); |
| ListView lv = getListView(); |
| // Because we pass the adapter to the next activity, we need to make |
| // sure it doesn't keep a reference to this activity. We can do this |
| // by clearing its DatasetObservers, which setListAdapter(null) does. |
| setListAdapter(null); |
| mBrowseListAdapter = null; |
| super.onDestroy(); |
| } |
| |
| @Override |
| public void onResume() { |
| Log.d(TAG, "onResume()"); |
| super.onResume(); |
| } |
| |
| @Override |
| public void onPause() { |
| Log.d(TAG, "onPause()"); |
| super.onPause(); |
| } |
| |
| @Override |
| public void onSaveInstanceState(Bundle outcicle) { |
| outcicle.putParcelable(MusicUtils.TAG_PARENT_ITEM, mParentItem); |
| outcicle.putBoolean(MusicUtils.TAG_WITH_TABS, mWithTabs); |
| super.onSaveInstanceState(outcicle); |
| } |
| |
| private MediaBrowser.SubscriptionCallback mSubscriptionCallback = |
| new MediaBrowser.SubscriptionCallback() { |
| |
| @Override |
| public void onChildrenLoaded( |
| String parentId, List<MediaBrowser.MediaItem> children) { |
| mBrowseListAdapter.clear(); |
| mBrowseListAdapter.notifyDataSetInvalidated(); |
| for (MediaBrowser.MediaItem item : children) { |
| mBrowseListAdapter.add(item); |
| } |
| mBrowseListAdapter.notifyDataSetChanged(); |
| } |
| |
| @Override |
| public void onError(String id) { |
| Toast.makeText(getApplicationContext(), R.string.error_loading_media, |
| Toast.LENGTH_LONG) |
| .show(); |
| } |
| }; |
| |
| private MediaBrowser.ConnectionCallback mConnectionCallback = |
| new MediaBrowser.ConnectionCallback() { |
| @Override |
| public void onConnected() { |
| Log.d(TAG, "onConnected: session token " + mMediaBrowser.getSessionToken()); |
| mMediaBrowser.subscribe(mParentItem.getMediaId(), mSubscriptionCallback); |
| if (mMediaBrowser.getSessionToken() == null) { |
| throw new IllegalArgumentException("No Session token"); |
| } |
| MediaController mediaController = new MediaController( |
| TrackBrowserActivity.this, mMediaBrowser.getSessionToken()); |
| mediaController.registerCallback(mMediaControllerCallback); |
| TrackBrowserActivity.this.setMediaController(mediaController); |
| if (mediaController.getMetadata() != null && mWithTabs) { |
| MusicUtils.updateNowPlaying(TrackBrowserActivity.this); |
| } |
| } |
| |
| @Override |
| public void onConnectionFailed() { |
| Log.d(TAG, "onConnectionFailed"); |
| } |
| |
| @Override |
| public void onConnectionSuspended() { |
| Log.d(TAG, "onConnectionSuspended"); |
| TrackBrowserActivity.this.setMediaController(null); |
| } |
| }; |
| |
| private MediaController.Callback mMediaControllerCallback = new MediaController.Callback() { |
| @Override |
| public void onMetadataChanged(MediaMetadata metadata) { |
| super.onMetadataChanged(metadata); |
| if (mWithTabs) { |
| MusicUtils.updateNowPlaying(TrackBrowserActivity.this); |
| } |
| if (mBrowseListAdapter != null) { |
| mBrowseListAdapter.notifyDataSetChanged(); |
| } |
| } |
| }; |
| |
| // An adapter for showing the list of browsed MediaItem's |
| private static class TrackBrowseAdapter extends ArrayAdapter<MediaBrowser.MediaItem> { |
| private int mLayoutId; |
| private final Drawable mNowPlayingOverlay; |
| private Activity mActivity; |
| |
| static class ViewHolder { |
| TextView line1; |
| TextView line2; |
| TextView duration; |
| ImageView play_indicator; |
| } |
| |
| TrackBrowseAdapter(Activity activity, int layout) { |
| super(activity, layout, new ArrayList<>()); |
| mLayoutId = layout; |
| mNowPlayingOverlay = activity.getResources().getDrawable( |
| R.drawable.indicator_ic_mp_playing_list, activity.getTheme()); |
| mActivity = activity; |
| } |
| |
| @Override |
| public View getView(int position, View convertView, ViewGroup parent) { |
| Log.d(TAG, "getView()"); |
| if (convertView == null) { |
| convertView = LayoutInflater.from(getContext()).inflate(mLayoutId, parent, false); |
| ImageView iv = (ImageView) convertView.findViewById(R.id.icon); |
| iv.setVisibility(View.GONE); |
| ViewHolder vh = new ViewHolder(); |
| vh.line1 = (TextView) convertView.findViewById(R.id.line1); |
| vh.line2 = (TextView) convertView.findViewById(R.id.line2); |
| vh.duration = (TextView) convertView.findViewById(R.id.duration); |
| vh.play_indicator = (ImageView) convertView.findViewById(R.id.play_indicator); |
| convertView.setTag(vh); |
| } |
| ViewHolder holder = (ViewHolder) convertView.getTag(); |
| MediaBrowser.MediaItem item = getItem(position); |
| Log.d(TAG, "title: " + item.getDescription().getTitle()); |
| holder.line1.setText(item.getDescription().getTitle()); |
| Log.d(TAG, "artist: " + item.getDescription().getSubtitle()); |
| holder.line2.setText(item.getDescription().getSubtitle()); |
| long duration = |
| item.getDescription().getExtras().getLong(MediaMetadata.METADATA_KEY_DURATION); |
| LogHelper.d(TAG, "duration: ", duration); |
| holder.duration.setText(MusicUtils.makeTimeString(getContext(), duration / 1000)); |
| MediaController mediaController = mActivity.getMediaController(); |
| if (mediaController == null) { |
| holder.play_indicator.setImageDrawable(null); |
| return convertView; |
| } |
| MediaMetadata metadata = mediaController.getMetadata(); |
| if (metadata == null) { |
| holder.play_indicator.setImageDrawable(null); |
| return convertView; |
| } |
| if (item.getDescription().getMediaId().endsWith( |
| metadata.getString(MediaMetadata.METADATA_KEY_MEDIA_ID))) { |
| holder.play_indicator.setImageDrawable(mNowPlayingOverlay); |
| } else { |
| holder.play_indicator.setImageDrawable(null); |
| } |
| return convertView; |
| } |
| } |
| |
| @Override |
| public Object onRetainNonConfigurationInstance() { |
| TrackBrowseAdapter a = mBrowseListAdapter; |
| return a; |
| } |
| |
| @Override |
| protected void onListItemClick(ListView l, View v, int position, long id) { |
| Log.d(TAG, "onListItemClick at position " + position + ", id " + id); |
| MediaBrowser.MediaItem item = mBrowseListAdapter.getItem(position); |
| if (item.isPlayable()) { |
| getMediaController().getTransportControls().playFromMediaId(item.getMediaId(), null); |
| } |
| } |
| } |