Parsing multiple jSon in IOS - ios

Question

For my code, I am following instruction on this link http://www.youtube.com/watch?v=RJZcD3hfs3k and success,
but I want to modify to multiple JSON and failed (if i print log, that its running).
I modify in:
- (void)viewDidLoad
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
This is my modified code(ViewController.m) :
#import "ViewController.h"
#import "DetailViewController.h"
#interface ViewController ()
#end
#implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
self.title = #"News";
//[UIApplication sharedApplication].networkActivityIndicatorVisible = YES;
//before
//NSURL *url = [NSURL URLWithString:#"http://zacandcatie.com/YouTube/json.php"];
//after
NSURL *url = [NSURL URLWithString:#"http://service.berisiknews.com/article/byAll/0/3"];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[[NSURLConnection alloc] initWithRequest:request delegate:self];
// Do any additional setup after loading the view, typically from a nib.
}
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
data = [[NSMutableData alloc] init];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)theData
{
[data appendData:theData];
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
[UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
//before
//news = [NSJSONSerialization JSONObjectWithData:data options:nil error:nil];
//[mainTableView reloadData];
//ßNSLog(#"array %#", news);
//after
NSArray *jsonArray = [NSJSONSerialization JSONObjectWithData:data options: NSJSONReadingMutableContainers error: nil];
NSArray *news = [jsonArray valueForKeyPath:#"data"];
[mainTableView reloadData];
NSLog(#"array %#", news);
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
UIAlertView *errorView = [[UIAlertView alloc] initWithTitle:#"Error" message:#"The download could not complete please make sure you're connected to either 3G or Wi-Fi" delegate:nil cancelButtonTitle:#"Dismiss" otherButtonTitles: nil];
[errorView show];
[UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
}
- (int)numberINSectionsInTableView: (UITableView *)tableView
{
return 1;
}
- (int)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [news count];
//return 1;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:#"MainCell"];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:#"MainCell"];
}
cell.textLabel.text = [[news objectAtIndex:indexPath.row] objectForKey:#"title"];
//cell.detailTextLabel.text = [[news objectAtIndex:indexPath.row] objectForKey:#"date_string"];
cell.detailTextLabel.text = [[news objectAtIndex:indexPath.row] objectForKey:#"category_name"];
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
DetailViewController *detailViewController = [[DetailViewController alloc] initWithNibName:#"DetailViewController" bundle:nil];
detailViewController.title = [[news objectAtIndex:indexPath.row] objectForKey:#"title"];
detailViewController.newsArticle = [news objectAtIndex:indexPath.row];
[self.navigationController pushViewController:detailViewController animated:YES];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#end
Any help?

Answer 1

Your news array is a local variable as your code.
In connectionDidFinishLoading, please modify as below
NSArray *jsonArray = [NSJSONSerialization JSONObjectWithData:data options: NSJSONReadingMutableContainers error: nil];
news = [jsonArray valueForKeyPath:#"data"];
[mainTableView reloadData];
NSLog(#"array %#", news);
so it will be the right news array which your are accessing in table view.
it works fine for me.

Answer 2

#interface AlbumViewController ()
#end
#implementation AlbumViewController
- (void)viewDidLoad
{
[super viewDidLoad];
//navigation Controller
[self.navigationController setNavigationBarHidden:NO];
self.title=#"Album List";
//json data parsing
NSURL *url = [NSURL URLWithString:#".......your Link......"];
NSURLRequest *urlrequest = [[NSURLRequest alloc]initWithURL:url];
NSData *data = [NSURLConnection sendSynchronousRequest:urlrequest returningResponse:nil error:nil];
dict_data = [NSJSONSerialization JSONObjectWithData:data options:0 error:nil];
self.ary_data = [dict_data objectForKey:#"album"];
NSLog(#"%#",self.ary_data);
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [ary_data count];
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell=[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:#""];
[cell setAccessoryType:UITableViewCellAccessoryDisclosureIndicator];
NSMutableDictionary *dic= [[ary_data objectAtIndex:indexPath.row] mutableCopy];
AlbumCellController *albumCell = [[AlbumCellController alloc]init];
[cell.contentView addSubview:albumCell.view];
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
albumCell.Img_album.image = [UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:[dic objectForKey:#"cover_photo"]]]];
});
albumCell.lbl_name.text = [dic objectForKey:#"title"];
albumCell.lbl_releasedate.text = [dic objectForKey:#"release_date"];
NSString *SongNo=[dic objectForKey:#"no_of_songs"];
NSLog(#"%#",SongNo);
//albumCell.lbl_songno.text=SongNo;
return cell;
}
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
NSMutableDictionary *dic= [[ary_data objectAtIndex:indexPath.row] mutableCopy];
SongsViewController *songList = [[SongsViewController alloc]init];
songList.imgURL = [dic objectForKey:#"cover_photo"];
songList.Album_id = [dic objectForKey:#"album_id"];
[self.navigationController pushViewController:songList animated:YES];
}