Trying to call a second table view with the items of de selected playlist in the first view - objective-c

Question

Maybe there's someone outthere who can help me fiure out my problem. I cant seem to display the playlistItems using cocoalibspotify. I have set up my playlistview and the first ableviewcontroller shows the playlist but when i try to call the items of the selected playlist I seem to get 0 numbersof row as my outputs show. the first view show how i pass the indexpath to the secondviewcontroller. the second script show my .h and .m files of the playlistitemsTavle view controller.
Overview.m - tableView with Playlists
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
[playlistView deselectRowAtIndexPath:indexPath animated:NO];
playlistItemViewController *trailsController = [[playlistItemViewController alloc] initWithStyle:UITableViewStylePlain];
trailsController.currentPlaylist = [playlistArray objectAtIndex:indexPath.row];
//[[self navigationController] pushViewController:trailsController animated:YES];
[self getSongs];
}
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if ([segue.identifier isEqualToString:#"showPlaylistItem"]) {
UITableViewCell *BasicCell = (UITableViewCell *) sender;
NSIndexPath *ip = [self.tableView indexPathForCell:BasicCell];
SPPlaylist *selectedPlaylist = [playlistArray objectAtIndex:ip.row];
playlistItemViewController *pivc = (playlistItemViewController *) segue.destinationViewController;
pivc.currentPlaylist = selectedPlaylist;
}
}
playlistitemsViewController.h -
#import <UIKit/UIKit.h>
#import "CocoaLibSpotify.h"
#import "Simple_PlayerAppDelegate.h"
#import "overViewController.h"
#interface playlistItemViewController : UITableViewController
{
UITableView *tableView;
}
#property (retain, nonatomic) IBOutlet UITableView *tableView;
#property (strong, readwrite, nonatomic) SPPlaylist *currentPlaylist;
#end
playlistViewController.m - this should call the playlist items
#import "playlistItemViewController.h"
#interface playlistItemViewController ()
#end
#implementation playlistItemViewController {
}
#synthesize currentPlaylist;
#synthesize tableView;
- (id)initWithStyle:(UITableViewStyle)style
{
self = [super initWithStyle:style];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark - Table view data source
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
NSLog(#"numberOfRowsInSection: %d",[[currentPlaylist items] count]);
return [[currentPlaylist items] count];
}
- (UITableViewCell *)tableView:(UITableView *)aTableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"SubtitleCell";
UITableViewCell *cell = [aTableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
cell.textLabel.text = [[[currentPlaylist items] objectAtIndex:indexPath.row] valueForKey:#"name"];
return cell;
if (indexPath.row == 0) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:#"SubtitleCell"];
[[cell.backgroundView superview] bringSubviewToFront:cell.backgroundView];
cell.textLabel.text = #"";
}
else{
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:#"SubtitleCell"];
}
SPPlaylistItem * item = [[currentPlaylist items] objectAtIndex:[[currentPlaylist items]count] - indexPath.row];
cell.textLabel.text = [item.item name];
if (item.itemClass == [SPTrack class]) {
SPTrack * track = item.item;
cell.detailTextLabel.text = [track consolidatedArtists];
}
}
return cell;
}
#end

Answer 1

You need to wait for the playlist to load before the items are available.
Your playlist view controller needs to use SPAsyncLoading to load the playlist, something list this:
[SPAsyncLoading waitUntilLoaded:self.currentPlaylist timeout:kSPAsyncLoadingDefaultTimeout then:^(NSArray *loadedItems, NSArray *notloadedItems) {
[self.tableView reloadData];
}];
Playlist loading can take a while, so make sure you put up some "loading" UI. You'll also need to load the visible tracks in a similar manner before their names will be available.