com.google.android.demos.jamendo.app.PlaylistActivity.java Source code

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Here is the source code for com.google.android.demos.jamendo.app.PlaylistActivity.java

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/*-
 * Copyright (C) 2009 Google Inc.
 *
 * 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.google.android.demos.jamendo.app;

import com.google.android.demos.jamendo.R;
import com.google.android.demos.jamendo.provider.JamendoContract;
import com.google.android.demos.jamendo.provider.JamendoContract.Playlists;
import com.google.android.demos.jamendo.provider.JamendoContract.Tracks;
import com.google.android.demos.jamendo.provider.JamendoContract.Users;
import com.google.android.demos.jamendo.widget.ListSeparatorAdapter;
import com.google.android.demos.jamendo.widget.PlaylistHeaderAdapter;
import com.google.android.demos.jamendo.widget.TrackListAdapter;

import android.content.ComponentName;
import android.content.ContentUris;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.content.CursorLoader;
import android.support.v4.content.Loader;
import android.support.v4.widget.CursorAdapter;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListAdapter;

public class PlaylistActivity extends JamendoActivity {

    private static final int MENU_GROUP_INTENT_OPTIONS = 1;

    @Override
    protected CursorAdapter createHeaderAdapter() {
        return new PlaylistHeaderAdapter(this);
    }

    @Override
    protected ListAdapter createSeparatorAdapter() {
        return new ListSeparatorAdapter(R.string.list_title_tracks);
    }

    @Override
    protected CursorAdapter createListAdapter() {
        return new TrackListAdapter(this);
    }

    /** {@inheritDoc} */
    public void onItemClick(AdapterView<?> l, View v, int position, long id) {
        TrackListAdapter.playTrack(this, id);
    }

    /** {@inheritDoc} */
    public Loader<Cursor> onCreateLoader(int loaderId, Bundle args) {
        switch (loaderId) {
        case LOADER_HEADER: {
            Uri uri = getIntent().getData();
            String[] projection = { Playlists._ID, Users.IMAGE, Playlists.NAME, Users.NAME, Users.ID,
                    Playlists.ID };
            String selection = String.format("%s=?", JamendoContract.PARAM_IMAGE_SIZE);
            String[] selectionArgs = { getDimensionPixelSizeAsString(R.dimen.image_size) };
            String sortOrder = null;
            return new CursorLoader(this, uri, projection, selection, selectionArgs, sortOrder);
        }
        case LOADER_LIST: {
            Uri uri = Tracks.CONTENT_URI;
            String[] projection = TrackListAdapter.PROJECTION;
            String selection = String.format("%s=?&%s=?&%s=?", JamendoContract.PARAM_JOIN,
                    JamendoContract.PARAM_JOIN, Playlists.ID);
            Uri data = getIntent().getData();
            long playlistId = ContentUris.parseId(data);
            String[] selectionArgs = { JamendoContract.JOIN_TRACK_ALBUM, JamendoContract.JOIN_ALBUM_ARTIST,
                    String.valueOf(playlistId) };
            String sortOrder = Tracks.Order.NUMPLAYLIST.ascending();
            return new CursorLoader(this, uri, projection, selection, selectionArgs, sortOrder);
        }
        default:
            return null;
        }
    }

    @Override
    public boolean onPrepareOptionsMenu(Menu menu) {
        super.onPrepareOptionsMenu(menu);
        int groupId = MENU_GROUP_INTENT_OPTIONS;
        int itemId = Menu.NONE;
        int order = Menu.NONE;
        ComponentName caller = getComponentName();
        Intent[] specifics = null;
        Intent intent = new Intent();
        long id = ContentUris.parseId(getIntent().getData());
        intent.setDataAndType(JamendoContract.createPlaylistUri(JamendoContract.FORMAT_M3U, Playlists.ID, id),
                JamendoContract.CONTENT_TYPE_M3U);
        intent.addCategory(Intent.CATEGORY_ALTERNATIVE);
        int flags = 0;
        MenuItem[] outSpecificItems = null;
        menu.addIntentOptions(groupId, itemId, order, caller, specifics, intent, flags, outSpecificItems);
        return menu.hasVisibleItems();
    }
}