FileDocCategorySizeDatePackage
AlbumBrowserActivity.javaAPI DocAndroid 1.5 API24123Wed May 06 22:42:46 BST 2009com.android.music

AlbumBrowserActivity

public class AlbumBrowserActivity extends android.app.ListActivity implements View.OnCreateContextMenuListener, MusicUtils.Defs

Fields Summary
private String
mCurrentAlbumId
private String
mCurrentAlbumName
private String
mCurrentArtistNameForAlbum
private AlbumListAdapter
mAdapter
private boolean
mAdapterSent
private static final int
SEARCH
private android.content.BroadcastReceiver
mTrackListListener
private android.content.BroadcastReceiver
mScanListener
private android.os.Handler
mReScanHandler
private android.database.Cursor
mAlbumCursor
private String
mArtistId
Constructors Summary
public AlbumBrowserActivity()
Methods Summary
voiddoSearch()

        CharSequence title = null;
        String query = null;
        
        Intent i = new Intent();
        i.setAction(MediaStore.INTENT_ACTION_MEDIA_SEARCH);
        
        title = mCurrentAlbumName;
        query = mCurrentArtistNameForAlbum + " " + mCurrentAlbumName;
        i.putExtra(MediaStore.EXTRA_MEDIA_ARTIST, mCurrentArtistNameForAlbum);
        i.putExtra(MediaStore.EXTRA_MEDIA_ALBUM, mCurrentAlbumName);
        i.putExtra(MediaStore.EXTRA_MEDIA_FOCUS, MediaStore.Audio.Albums.ENTRY_CONTENT_TYPE);
        title = getString(R.string.mediasearch, title);
        i.putExtra(SearchManager.QUERY, query);

        startActivity(Intent.createChooser(i, title));
private android.database.CursorgetAlbumCursor(android.content.AsyncQueryHandler async, java.lang.String filter)

        StringBuilder where = new StringBuilder();
        where.append(MediaStore.Audio.Albums.ALBUM + " != ''");
        
        // Add in the filtering constraints
        String [] keywords = null;
        if (filter != null) {
            String [] searchWords = filter.split(" ");
            keywords = new String[searchWords.length];
            Collator col = Collator.getInstance();
            col.setStrength(Collator.PRIMARY);
            for (int i = 0; i < searchWords.length; i++) {
                keywords[i] = '%" + MediaStore.Audio.keyFor(searchWords[i]) + '%";
            }
            for (int i = 0; i < searchWords.length; i++) {
                where.append(" AND ");
                where.append(MediaStore.Audio.Media.ARTIST_KEY + "||");
                where.append(MediaStore.Audio.Media.ALBUM_KEY + " LIKE ?");
            }
        }

        String whereclause = where.toString();  
            
        String[] cols = new String[] {
                MediaStore.Audio.Albums._ID,
                MediaStore.Audio.Albums.ALBUM,
                MediaStore.Audio.Albums.ALBUM_KEY,
                MediaStore.Audio.Albums.ARTIST,
                MediaStore.Audio.Albums.NUMBER_OF_SONGS,
                MediaStore.Audio.Albums.ALBUM_ART
        };
        Cursor ret = null;
        if (mArtistId != null) {
            if (async != null) {
                async.startQuery(0, null,
                        MediaStore.Audio.Artists.Albums.getContentUri("external",
                                Long.valueOf(mArtistId)),
                        cols, whereclause, keywords, MediaStore.Audio.Albums.DEFAULT_SORT_ORDER);
            } else {
                ret = MusicUtils.query(this,
                        MediaStore.Audio.Artists.Albums.getContentUri("external",
                                Long.valueOf(mArtistId)),
                        cols, whereclause, keywords, MediaStore.Audio.Albums.DEFAULT_SORT_ORDER);
            }
        } else {
            if (async != null) {
                async.startQuery(0, null,
                        MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI,
                        cols, whereclause, keywords, MediaStore.Audio.Albums.DEFAULT_SORT_ORDER);
            } else {
                ret = MusicUtils.query(this, MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI,
                        cols, whereclause, keywords, MediaStore.Audio.Albums.DEFAULT_SORT_ORDER);
            }
        }
        return ret;
public voidinit(android.database.Cursor c)


        mAdapter.changeCursor(c); // also sets mAlbumCursor

        if (mAlbumCursor == null) {
            MusicUtils.displayDatabaseError(this);
            closeContextMenu();
            mReScanHandler.sendEmptyMessageDelayed(0, 1000);
            return;
        }
        
        MusicUtils.hideDatabaseError(this);
        setTitle();
protected voidonActivityResult(int requestCode, int resultCode, android.content.Intent intent)

        switch (requestCode) {
            case SCAN_DONE:
                if (resultCode == RESULT_CANCELED) {
                    finish();
                } else {
                    getAlbumCursor(mAdapter.getQueryHandler(), null);
                }
                break;

            case NEW_PLAYLIST:
                if (resultCode == RESULT_OK) {
                    Uri uri = intent.getData();
                    if (uri != null) {
                        int [] list = MusicUtils.getSongListForAlbum(this, Integer.parseInt(mCurrentAlbumId));
                        MusicUtils.addToPlaylist(this, list, Integer.parseInt(uri.getLastPathSegment()));
                    }
                }
                break;
        }
public booleanonContextItemSelected(android.view.MenuItem item)

        switch (item.getItemId()) {
            case PLAY_SELECTION: {
                // play the selected album
                int [] list = MusicUtils.getSongListForAlbum(this, Integer.parseInt(mCurrentAlbumId));
                MusicUtils.playAll(this, list, 0);
                return true;
            }

            case QUEUE: {
                int [] list = MusicUtils.getSongListForAlbum(this, Integer.parseInt(mCurrentAlbumId));
                MusicUtils.addToCurrentPlaylist(this, list);
                return true;
            }

            case NEW_PLAYLIST: {
                Intent intent = new Intent();
                intent.setClass(this, CreatePlaylist.class);
                startActivityForResult(intent, NEW_PLAYLIST);
                return true;
            }

            case PLAYLIST_SELECTED: {
                int [] list = MusicUtils.getSongListForAlbum(this, Integer.parseInt(mCurrentAlbumId));
                int playlist = item.getIntent().getIntExtra("playlist", 0);
                MusicUtils.addToPlaylist(this, list, playlist);
                return true;
            }
            case DELETE_ITEM: {
                int [] list = MusicUtils.getSongListForAlbum(this, Integer.parseInt(mCurrentAlbumId));
                String f = getString(R.string.delete_album_desc); 
                String desc = String.format(f, mCurrentAlbumName);
                Bundle b = new Bundle();
                b.putString("description", desc);
                b.putIntArray("items", list);
                Intent intent = new Intent();
                intent.setClass(this, DeleteItems.class);
                intent.putExtras(b);
                startActivityForResult(intent, -1);
                return true;
            }
            case SEARCH:
                doSearch();
                return true;

        }
        return super.onContextItemSelected(item);
public voidonCreate(android.os.Bundle icicle)
Called when the activity is first created.

        if (icicle != null) {
            mCurrentAlbumId = icicle.getString("selectedalbum");
            mArtistId = icicle.getString("artist");
        } else {
            mArtistId = getIntent().getStringExtra("artist");
        }
        super.onCreate(icicle);
        requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
        setVolumeControlStream(AudioManager.STREAM_MUSIC);
        MusicUtils.bindToService(this);

        IntentFilter f = new IntentFilter();
        f.addAction(Intent.ACTION_MEDIA_SCANNER_STARTED);
        f.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED);
        f.addAction(Intent.ACTION_MEDIA_UNMOUNTED);
        f.addDataScheme("file");
        registerReceiver(mScanListener, f);

        setContentView(R.layout.media_picker_activity);
        ListView lv = getListView();
        lv.setFastScrollEnabled(true);
        lv.setOnCreateContextMenuListener(this);
        lv.setTextFilterEnabled(true);

        mAdapter = (AlbumListAdapter) getLastNonConfigurationInstance();
        if (mAdapter == null) {
            //Log.i("@@@", "starting query");
            mAdapter = new AlbumListAdapter(
                    getApplication(),
                    this,
                    R.layout.track_list_item,
                    mAlbumCursor,
                    new String[] {},
                    new int[] {});
            setListAdapter(mAdapter);
            setTitle(R.string.working_albums);
            getAlbumCursor(mAdapter.getQueryHandler(), null);
        } else {
            mAdapter.setActivity(this);
            setListAdapter(mAdapter);
            mAlbumCursor = mAdapter.getCursor();
            if (mAlbumCursor != null) {
                init(mAlbumCursor);
            } else {
                getAlbumCursor(mAdapter.getQueryHandler(), null);
            }
        }
public voidonCreateContextMenu(android.view.ContextMenu menu, android.view.View view, android.view.ContextMenu.ContextMenuInfo menuInfoIn)

        menu.add(0, PLAY_SELECTION, 0, R.string.play_selection);
        SubMenu sub = menu.addSubMenu(0, ADD_TO_PLAYLIST, 0, R.string.add_to_playlist);
        MusicUtils.makePlaylistMenu(this, sub);
        menu.add(0, DELETE_ITEM, 0, R.string.delete_item);
        menu.add(0, SEARCH, 0, R.string.search_title);

        AdapterContextMenuInfo mi = (AdapterContextMenuInfo) menuInfoIn;
        mAlbumCursor.moveToPosition(mi.position);
        mCurrentAlbumId = mAlbumCursor.getString(mAlbumCursor.getColumnIndexOrThrow(MediaStore.Audio.Albums._ID));
        mCurrentAlbumName = mAlbumCursor.getString(mAlbumCursor.getColumnIndexOrThrow(MediaStore.Audio.Albums.ALBUM));
        mCurrentArtistNameForAlbum = mAlbumCursor.getString(
                mAlbumCursor.getColumnIndexOrThrow(MediaStore.Audio.Albums.ARTIST));
        menu.setHeaderTitle(mCurrentAlbumName);
public booleanonCreateOptionsMenu(android.view.Menu menu)

        super.onCreateOptionsMenu(menu);
        menu.add(0, GOTO_START, 0, R.string.goto_start).setIcon(R.drawable.ic_menu_music_library);
        menu.add(0, GOTO_PLAYBACK, 0, R.string.goto_playback).setIcon(R.drawable.ic_menu_playback);
        menu.add(0, SHUFFLE_ALL, 0, R.string.shuffle_all).setIcon(R.drawable.ic_menu_shuffle);
        return true;
public voidonDestroy()

        MusicUtils.unbindFromService(this);
        if (!mAdapterSent) {
            Cursor c = mAdapter.getCursor();
            if (c != null) {
                c.close();
            }
        }
        unregisterReceiver(mScanListener);
        super.onDestroy();
protected voidonListItemClick(android.widget.ListView l, android.view.View v, int position, long id)

        Intent intent = new Intent(Intent.ACTION_PICK);
        intent.setDataAndType(Uri.EMPTY, "vnd.android.cursor.dir/track");
        intent.putExtra("album", Long.valueOf(id).toString());
        intent.putExtra("artist", mArtistId);
        startActivity(intent);
public booleanonOptionsItemSelected(android.view.MenuItem item)

        Intent intent;
        Cursor cursor;
        switch (item.getItemId()) {
            case GOTO_START:
                intent = new Intent();
                intent.setClass(this, MusicBrowserActivity.class);
                intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                startActivity(intent);
                return true;

            case GOTO_PLAYBACK:
                intent = new Intent("com.android.music.PLAYBACK_VIEWER");
                startActivity(intent);
                return true;

            case SHUFFLE_ALL:
                cursor = MusicUtils.query(this, MediaStore.Audio.Media.EXTERNAL_CONTENT_URI,
                        new String [] { MediaStore.Audio.Media._ID},
                        MediaStore.Audio.Media.IS_MUSIC + "=1", null,
                        MediaStore.Audio.Media.DEFAULT_SORT_ORDER);
                if (cursor != null) {
                    MusicUtils.shuffleAll(this, cursor);
                    cursor.close();
                }
                return true;
        }
        return super.onOptionsItemSelected(item);
public voidonPause()


    
       
        unregisterReceiver(mTrackListListener);
        mReScanHandler.removeCallbacksAndMessages(null);
        super.onPause();
public booleanonPrepareOptionsMenu(android.view.Menu menu)

        menu.findItem(GOTO_PLAYBACK).setVisible(MusicUtils.isMusicLoaded());
        return super.onPrepareOptionsMenu(menu);
public voidonResume()

        super.onResume();
        IntentFilter f = new IntentFilter();
        f.addAction(MediaPlaybackService.META_CHANGED);
        f.addAction(MediaPlaybackService.QUEUE_CHANGED);
        registerReceiver(mTrackListListener, f);
        mTrackListListener.onReceive(null, null);

        MusicUtils.setSpinnerState(this);
public java.lang.ObjectonRetainNonConfigurationInstance()

        mAdapterSent = true;
        return mAdapter;
public voidonSaveInstanceState(android.os.Bundle outcicle)

        // need to store the selected item so we don't lose it in case
        // of an orientation switch. Otherwise we could lose it while
        // in the middle of specifying a playlist to add the item to.
        outcicle.putString("selectedalbum", mCurrentAlbumId);
        outcicle.putString("artist", mArtistId);
        super.onSaveInstanceState(outcicle);
private voidsetTitle()

        CharSequence fancyName = "";
        if (mAlbumCursor != null && mAlbumCursor.getCount() > 0) {
            mAlbumCursor.moveToFirst();
            fancyName = mAlbumCursor.getString(3);
            if (fancyName == null || fancyName.equals(MediaFile.UNKNOWN_STRING))
                fancyName = getText(R.string.unknown_artist_name);
        }

        if (mArtistId != null && fancyName != null)
            setTitle(fancyName);
        else
            setTitle(R.string.albums_title);