/// <summary>
/// Provide a view containing either album or song details at the specified position
/// Attempt to reuse the supplied view if it previously contained the same type of detail.
/// </summary>
/// <param name="groupPosition"></param>
/// <param name="childPosition"></param>
/// <param name="isLastChild"></param>
/// <param name="convertView"></param>
/// <param name="parent"></param>
/// <returns></returns>
protected override View GetSpecialisedChildView(int groupPosition, int childPosition, bool isLastChild, View convertView, ViewGroup parent)
{
if (Groups[groupPosition] is SongPlaylist playlist)
{
// If no view supplied then create a new one
if (convertView == null)
{
convertView = inflator.Inflate(Resource.Layout.playlists_song_layout, null);
convertView.Tag = new SongViewHolder()
{
SelectionBox = GetSelectionBox(convertView),
Artist = convertView.FindViewById <TextView>(Resource.Id.artist),
Title = convertView.FindViewById <TextView>(Resource.Id.title),
Duration = convertView.FindViewById <TextView>(Resource.Id.duration)
};
}
// Display the SongPlaylistItem
(( SongViewHolder )convertView.Tag).DisplaySong(( SongPlaylistItem )playlist.PlaylistItems[childPosition]);
// If this song is currently being played then show with a different background
convertView.SetBackgroundColor((playlist.SongIndex == childPosition) ? Color.AliceBlue : Color.Transparent);
}
else
{
// If the supplied view is null then create one
if (convertView == null)
{
convertView = inflator.Inflate(Resource.Layout.playlists_album_layout, null);
convertView.Tag = new AlbumViewHolder()
{
SelectionBox = GetSelectionBox(convertView),
AlbumName = convertView.FindViewById <TextView>(Resource.Id.albumName),
ArtistName = convertView.FindViewById <TextView>(Resource.Id.artist),
Year = convertView.FindViewById <TextView>(Resource.Id.year),
Genre = convertView.FindViewById <TextView>(Resource.Id.genre),
};
}
// Display the album
AlbumPlaylist albumPlaylist = ( AlbumPlaylist )Groups[groupPosition];
Album album = ((AlbumPlaylistItem)albumPlaylist.PlaylistItems[childPosition]).Album;
(( AlbumViewHolder )convertView.Tag).DisplayAlbum(album, ActionMode, album.Genre);
// If this album is currently being played then show it with a different background
convertView.SetBackgroundColor(albumPlaylist.InProgressAlbum == album ? Color.AliceBlue : Color.Transparent);
}
return(convertView);
}
/// <summary>
/// Called to display a particular song
/// </summary>
/// <param name="position"></param>
/// <param name="convertView"></param>
/// <param name="parent"></param>
/// <returns></returns>
public override View GetView( int position, View convertView, ViewGroup parent )
{
if ( convertView == null )
{
convertView = inflator.Inflate( Resource.Layout.popup_song_layout, null );
convertView.Tag = new SongViewHolder()
{
Title = convertView.FindViewById<TextView>( Resource.Id.title ),
Duration = convertView.FindViewById<TextView>( Resource.Id.duration )
};
}
// Display the song
( ( SongViewHolder )convertView.Tag ).DisplaySong( songs[ position ] );
// If this song is currently being played then show it with a different background
convertView.SetBackgroundColor( songs[ position ].Id == lastPlayedSongId ? Color.AliceBlue : Color.Transparent );
return convertView;
}
