src/com/android/music/AlbumBrowserActivity.java - platform/packages/apps/Music - Gitiles

 /*
  * 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.ListActivity;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.graphics.drawable.BitmapDrawable;
 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.media.session.PlaybackState;
 import android.net.Uri;
 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 com.android.music.utils.Playback;

 import java.util.ArrayList;
 import java.util.List;

 /*
 This activity is the albums browsing tab
  */
 public class AlbumBrowserActivity extends ListActivity {
     private static final String TAG = LogHelper.makeLogTag(AlbumBrowserActivity.class);
     private static final MediaBrowser.MediaItem DEFAULT_PARENT_ITEM =
             new MediaBrowser.MediaItem(new MediaDescription.Builder()
                                                .setMediaId(MediaIDHelper.MEDIA_ID_MUSICS_BY_ALBUM)
                                                .build(),
                     MediaBrowser.MediaItem.FLAG_BROWSABLE);

     private ListView mAlbumList;
     private AlbumBrowseAdapter mBrowseListAdapter;
     private MediaBrowser mMediaBrowser;
     private MediaBrowser.MediaItem mParentItem;

     /** Called when the activity is first created. */
     @Override
     public void onCreate(Bundle icicle) {
         Log.d(TAG, "onCreate()");
         super.onCreate(icicle);
         if (icicle != null) {
             mParentItem = icicle.getParcelable(MusicUtils.TAG_PARENT_ITEM);
         } else if (getIntent() != null) {
             mParentItem = getIntent().getExtras().getParcelable(MusicUtils.TAG_PARENT_ITEM);
         }
         if (mParentItem == null) {
             mParentItem = DEFAULT_PARENT_ITEM;
         }
         requestWindowFeature(Window.FEATURE_NO_TITLE);
         setVolumeControlStream(AudioManager.STREAM_MUSIC);

         setContentView(R.layout.media_picker_activity);
         MusicUtils.updateButtonBar(this, R.id.albumtab);
         mAlbumList = getListView();
         mAlbumList.setOnCreateContextMenuListener(this);
         mAlbumList.setTextFilterEnabled(true);

         mBrowseListAdapter = (AlbumBrowseAdapter) getLastNonConfigurationInstance();
         if (mBrowseListAdapter == null) {
             // Log.i("@@@", "starting query");
             mBrowseListAdapter = new AlbumBrowseAdapter(this, R.layout.track_list_item);
             setTitle(R.string.working_albums);
         }
         setListAdapter(mBrowseListAdapter);
         Log.d(TAG, "Creating MediaBrowser");
         mMediaBrowser = new MediaBrowser(this, new ComponentName(this, MediaPlaybackService.class),
                 mConnectionCallback, null);
     }

     @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 onStart() {
         Log.d(TAG, "onStart()");
         super.onStart();
         mMediaBrowser.connect();
     }

     @Override
     public void onStop() {
         Log.d(TAG, "onStop()");
         super.onStop();
         mMediaBrowser.disconnect();
     }

     @Override
     public void onPause() {
         Log.d(TAG, "onPause()");
         super.onPause();
     }

     @Override
     public void onSaveInstanceState(Bundle outcicle) {
         outcicle.putParcelable(MusicUtils.TAG_PARENT_ITEM, mParentItem);
         super.onSaveInstanceState(outcicle);
     }

     private void setTitle() {
         CharSequence fancyName = "";
         setTitle(R.string.albums_title);
     }

     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(
                             AlbumBrowserActivity.this, mMediaBrowser.getSessionToken());
                     mediaController.registerCallback(mMediaControllerCallback);
                     AlbumBrowserActivity.this.setMediaController(mediaController);
                     if (mediaController.getMetadata() != null) {
                         MusicUtils.updateNowPlaying(AlbumBrowserActivity.this);
                     }
                 }

                 @Override
                 public void onConnectionFailed() {
                     Log.d(TAG, "onConnectionFailed");
                 }

                 @Override
                 public void onConnectionSuspended() {
                     Log.d(TAG, "onConnectionSuspended");
                     AlbumBrowserActivity.this.setMediaController(null);
                 }
             };

     private MediaController.Callback mMediaControllerCallback = new MediaController.Callback() {
         @Override
         public void onMetadataChanged(MediaMetadata metadata) {
             super.onMetadataChanged(metadata);
             MusicUtils.updateNowPlaying(AlbumBrowserActivity.this);
             if (mBrowseListAdapter != null) {
                 mBrowseListAdapter.notifyDataSetChanged();
             }
         }
     };

     // An adapter for showing the list of browsed MediaItem's
     private class AlbumBrowseAdapter extends ArrayAdapter<MediaBrowser.MediaItem> {
         private final Drawable mNowPlayingOverlay;
         private final BitmapDrawable mDefaultAlbumIcon;
         private int mLayoutId;

         private class ViewHolder {
             TextView line1;
             TextView line2;
             ImageView play_indicator;
             ImageView icon;
         }

         AlbumBrowseAdapter(Context context, int layout) {
             super(context, layout, new ArrayList<>());
             mNowPlayingOverlay = context.getResources().getDrawable(
                     R.drawable.indicator_ic_mp_playing_list, context.getTheme());
             Bitmap b = BitmapFactory.decodeResource(
                     context.getResources(), R.drawable.albumart_mp_unknown_list);
             mDefaultAlbumIcon = new BitmapDrawable(context.getResources(), b);
             // no filter or dither, it's a lot faster and we can't tell the difference
             mDefaultAlbumIcon.setFilterBitmap(false);
             mDefaultAlbumIcon.setDither(false);
             mLayoutId = layout;
         }

         @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);
                 ViewHolder vh = new ViewHolder();
                 vh.line1 = (TextView) convertView.findViewById(R.id.line1);
                 vh.line2 = (TextView) convertView.findViewById(R.id.line2);
                 vh.play_indicator = (ImageView) convertView.findViewById(R.id.play_indicator);
                 vh.icon = (ImageView) convertView.findViewById(R.id.icon);
                 vh.icon.setBackground(mDefaultAlbumIcon);
                 vh.icon.setPadding(0, 0, 1, 0);
                 vh.icon.setVisibility(View.VISIBLE);
                 convertView.setTag(vh);
             }
             ViewHolder vh = (ViewHolder) convertView.getTag();
             MediaBrowser.MediaItem item = getItem(position);
             Log.d(TAG, "Album: " + item.getDescription().getTitle());
             vh.line1.setText(item.getDescription().getTitle());
             Log.d(TAG, "Artist: " + item.getDescription().getSubtitle());
             vh.line2.setText(item.getDescription().getSubtitle());
             Bitmap albumArt = item.getDescription().getIconBitmap();
             LogHelper.d(TAG, "looking for album art");
             if (albumArt != null) {
                 vh.icon.setImageDrawable(MusicUtils.getDrawableBitmap(albumArt, mDefaultAlbumIcon));
             } else {
                 vh.icon.setImageDrawable(mDefaultAlbumIcon);
             }
             MediaController mediaController = AlbumBrowserActivity.this.getMediaController();
             if (mediaController == null) {
                 vh.play_indicator.setImageDrawable(null);
                 return convertView;
             }
             MediaMetadata metadata = mediaController.getMetadata();
             if (metadata == null) {
                 vh.play_indicator.setImageDrawable(null);
                 return convertView;
             }
             if (metadata.getString(MediaMetadata.METADATA_KEY_ALBUM)
                             .equals(item.getDescription().getTitle())) {
                 vh.play_indicator.setImageDrawable(mNowPlayingOverlay);
             } else {
                 vh.play_indicator.setImageDrawable(null);
             }
             return convertView;
         }
     }

     @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.isBrowsable()) {
             Intent intent = new Intent(Intent.ACTION_PICK);
             intent.setDataAndType(Uri.EMPTY, "vnd.android.cursor.dir/track");
             intent.putExtra(MusicUtils.TAG_PARENT_ITEM, item);
             intent.putExtra(MusicUtils.TAG_WITH_TABS, false);
             startActivity(intent);
         }
     }
 }
	/*
	* 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.ListActivity;
	import android.content.ComponentName;
	import android.content.Context;
	import android.content.Intent;
	import android.content.IntentFilter;
	import android.graphics.Bitmap;
	import android.graphics.BitmapFactory;
	import android.graphics.drawable.BitmapDrawable;
	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.media.session.PlaybackState;
	import android.net.Uri;
	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 com.android.music.utils.Playback;

	import java.util.ArrayList;
	import java.util.List;

	/*
	This activity is the albums browsing tab
	*/
	public class AlbumBrowserActivity extends ListActivity {
	private static final String TAG = LogHelper.makeLogTag(AlbumBrowserActivity.class);
	private static final MediaBrowser.MediaItem DEFAULT_PARENT_ITEM =
	new MediaBrowser.MediaItem(new MediaDescription.Builder()
	.setMediaId(MediaIDHelper.MEDIA_ID_MUSICS_BY_ALBUM)
	.build(),
	MediaBrowser.MediaItem.FLAG_BROWSABLE);

	private ListView mAlbumList;
	private AlbumBrowseAdapter mBrowseListAdapter;
	private MediaBrowser mMediaBrowser;
	private MediaBrowser.MediaItem mParentItem;

	/** Called when the activity is first created. */
	@Override
	public void onCreate(Bundle icicle) {
	Log.d(TAG, "onCreate()");
	super.onCreate(icicle);
	if (icicle != null) {
	mParentItem = icicle.getParcelable(MusicUtils.TAG_PARENT_ITEM);
	} else if (getIntent() != null) {
	mParentItem = getIntent().getExtras().getParcelable(MusicUtils.TAG_PARENT_ITEM);
	}
	if (mParentItem == null) {
	mParentItem = DEFAULT_PARENT_ITEM;
	}
	requestWindowFeature(Window.FEATURE_NO_TITLE);
	setVolumeControlStream(AudioManager.STREAM_MUSIC);

	setContentView(R.layout.media_picker_activity);
	MusicUtils.updateButtonBar(this, R.id.albumtab);
	mAlbumList = getListView();
	mAlbumList.setOnCreateContextMenuListener(this);
	mAlbumList.setTextFilterEnabled(true);

	mBrowseListAdapter = (AlbumBrowseAdapter) getLastNonConfigurationInstance();
	if (mBrowseListAdapter == null) {
	// Log.i("@@@", "starting query");
	mBrowseListAdapter = new AlbumBrowseAdapter(this, R.layout.track_list_item);
	setTitle(R.string.working_albums);
	}
	setListAdapter(mBrowseListAdapter);
	Log.d(TAG, "Creating MediaBrowser");
	mMediaBrowser = new MediaBrowser(this, new ComponentName(this, MediaPlaybackService.class),
	mConnectionCallback, null);
	}

	@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 onStart() {
	Log.d(TAG, "onStart()");
	super.onStart();
	mMediaBrowser.connect();
	}

	@Override
	public void onStop() {
	Log.d(TAG, "onStop()");
	super.onStop();
	mMediaBrowser.disconnect();
	}

	@Override
	public void onPause() {
	Log.d(TAG, "onPause()");
	super.onPause();
	}

	@Override
	public void onSaveInstanceState(Bundle outcicle) {
	outcicle.putParcelable(MusicUtils.TAG_PARENT_ITEM, mParentItem);
	super.onSaveInstanceState(outcicle);
	}

	private void setTitle() {
	CharSequence fancyName = "";
	setTitle(R.string.albums_title);
	}

	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(
	AlbumBrowserActivity.this, mMediaBrowser.getSessionToken());
	mediaController.registerCallback(mMediaControllerCallback);
	AlbumBrowserActivity.this.setMediaController(mediaController);
	if (mediaController.getMetadata() != null) {
	MusicUtils.updateNowPlaying(AlbumBrowserActivity.this);
	}
	}

	@Override
	public void onConnectionFailed() {
	Log.d(TAG, "onConnectionFailed");
	}

	@Override
	public void onConnectionSuspended() {
	Log.d(TAG, "onConnectionSuspended");
	AlbumBrowserActivity.this.setMediaController(null);
	}
	};

	private MediaController.Callback mMediaControllerCallback = new MediaController.Callback() {
	@Override
	public void onMetadataChanged(MediaMetadata metadata) {
	super.onMetadataChanged(metadata);
	MusicUtils.updateNowPlaying(AlbumBrowserActivity.this);
	if (mBrowseListAdapter != null) {
	mBrowseListAdapter.notifyDataSetChanged();
	}
	}
	};

	// An adapter for showing the list of browsed MediaItem's
	private class AlbumBrowseAdapter extends ArrayAdapter<MediaBrowser.MediaItem> {
	private final Drawable mNowPlayingOverlay;
	private final BitmapDrawable mDefaultAlbumIcon;
	private int mLayoutId;

	private class ViewHolder {
	TextView line1;
	TextView line2;
	ImageView play_indicator;
	ImageView icon;
	}

	AlbumBrowseAdapter(Context context, int layout) {
	super(context, layout, new ArrayList<>());
	mNowPlayingOverlay = context.getResources().getDrawable(
	R.drawable.indicator_ic_mp_playing_list, context.getTheme());
	Bitmap b = BitmapFactory.decodeResource(
	context.getResources(), R.drawable.albumart_mp_unknown_list);
	mDefaultAlbumIcon = new BitmapDrawable(context.getResources(), b);
	// no filter or dither, it's a lot faster and we can't tell the difference
	mDefaultAlbumIcon.setFilterBitmap(false);
	mDefaultAlbumIcon.setDither(false);
	mLayoutId = layout;
	}

	@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);
	ViewHolder vh = new ViewHolder();
	vh.line1 = (TextView) convertView.findViewById(R.id.line1);
	vh.line2 = (TextView) convertView.findViewById(R.id.line2);
	vh.play_indicator = (ImageView) convertView.findViewById(R.id.play_indicator);
	vh.icon = (ImageView) convertView.findViewById(R.id.icon);
	vh.icon.setBackground(mDefaultAlbumIcon);
	vh.icon.setPadding(0, 0, 1, 0);
	vh.icon.setVisibility(View.VISIBLE);
	convertView.setTag(vh);
	}
	ViewHolder vh = (ViewHolder) convertView.getTag();
	MediaBrowser.MediaItem item = getItem(position);
	Log.d(TAG, "Album: " + item.getDescription().getTitle());
	vh.line1.setText(item.getDescription().getTitle());
	Log.d(TAG, "Artist: " + item.getDescription().getSubtitle());
	vh.line2.setText(item.getDescription().getSubtitle());
	Bitmap albumArt = item.getDescription().getIconBitmap();
	LogHelper.d(TAG, "looking for album art");
	if (albumArt != null) {
	vh.icon.setImageDrawable(MusicUtils.getDrawableBitmap(albumArt, mDefaultAlbumIcon));
	} else {
	vh.icon.setImageDrawable(mDefaultAlbumIcon);
	}
	MediaController mediaController = AlbumBrowserActivity.this.getMediaController();
	if (mediaController == null) {
	vh.play_indicator.setImageDrawable(null);
	return convertView;
	}
	MediaMetadata metadata = mediaController.getMetadata();
	if (metadata == null) {
	vh.play_indicator.setImageDrawable(null);
	return convertView;
	}
	if (metadata.getString(MediaMetadata.METADATA_KEY_ALBUM)
	.equals(item.getDescription().getTitle())) {
	vh.play_indicator.setImageDrawable(mNowPlayingOverlay);
	} else {
	vh.play_indicator.setImageDrawable(null);
	}
	return convertView;
	}
	}

	@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.isBrowsable()) {
	Intent intent = new Intent(Intent.ACTION_PICK);
	intent.setDataAndType(Uri.EMPTY, "vnd.android.cursor.dir/track");
	intent.putExtra(MusicUtils.TAG_PARENT_ITEM, item);
	intent.putExtra(MusicUtils.TAG_WITH_TABS, false);
	startActivity(intent);
	}
	}
	}