Empty rows

#import "TableViewController.h"

@interface TableViewController ()

@end

@implementation TableViewController

- (id)initWithStyle:(UITableViewStyle)style
{
    self = [super initWithStyle:style];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];

    NSURL *blogURL=[NSURL URLWithString:@"http://blog.teamtreehouse.com/api/get_recent_summary/"];
    NSData *jsonData = [NSData dataWithContentsOfURL:blogURL];
    NSError *error = nil;
    NSDictionary *dataDictionary = [NSJSONSerialization JSONObjectWithData:jsonData options:0 error:&error];
    NSLog(@"%@", dataDictionary);
    self.blogPosts = [dataDictionary objectForKey:@"id"];



//    NSDictionary *BlogPost1 = [NSDictionary dictionaryWithObjectsAndKeys:@"a",@"b",@"c",@"d", nil];
//    NSDictionary *BlogPost2 = [NSDictionary dictionaryWithObjectsAndKeys:@"e",@"b",@"g",@"d", nil];
//    NSDictionary *BlogPost3 = [NSDictionary dictionaryWithObjectsAndKeys:@"k",@"b",@"m",@"d", nil];
//    self.blogPosts = [NSArray arrayWithObjects:BlogPost1,BlogPost2,BlogPost3,nil];

    // Uncomment the following line to preserve selection between presentations.
    // self.clearsSelectionOnViewWillAppear = NO;

    // Uncomment the following line to display an Edit button in the navigation bar for this view controller.
    // self.navigationItem.rightBarButtonItem = self.editButtonItem;
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{

    // Return the number of sections.
    return 1;
}
//tutaj programujemy ile kolumn
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{

    // Return the number of rows in the section.
    return self.blogPosts.count;
}

//tutaj wyswietlanie programuejmy
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    NSString *cellIdentifier = @"Cell";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier: cellIdentifier forIndexPath:indexPath];
    NSDictionary *blogPost = [self.blogPosts objectAtIndex:indexPath.row];

    cell.textLabel.text = [blogPost valueForKey:@"title"];
    cell.detailTextLabel.text = [blogPost valueForKey:@"author"];

    return cell;
}
@end