Question

I was able to parse a JSON and stored it in a NSMutableArray named as json in my FirstViewController. The problem is, I do not know how to access the array in my FirstViewController from my View Controllers.

EDIT!!!

I moved the code from AppDelegate to my FirstViewController as it is not a good practice.

FirstViewController.h

#import <UIKit/UIKit.h>

@interface FirstViewController : UIViewController
{
    NSMutableArray *jsonData;
}

@property (nonatomic, strong) NSMutableArray *jsonData;

@end

FirstViewController.m

@synthesize jsonData;

NSURL *url = [NSURL URLWithString:@"http://search.twitter.com/search.json?q=coredata"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
NSData *response = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
self.json = [NSJSONSerialization JSONObjectWithData:response options:0 error:&jsonParsingError];

SecondViewController *secondViewController = [[SecondViewController alloc] init];
secondViewController.secondJSON = [self jsonData];
[[self navigationController] pushViewController:secondViewController animated:YES];

SecondViewController.h

#import <UIKit/UIKit.h>

@interface SecondViewController : UIViewController
{
    NSMutableArray *secondJSON;
}

@property (nonatomic, strong) NSMutableArray *secondJSON;

@end

SecondViewController.m

- (void)viewDidLoad
{
    [super viewDidLoad];

    NSLog(@"%@", [self secondJSON]);
}

Output

2013-02-03 00:16:17.749 Subscription[24669:c07] (null)

Am I missing something?

Answer 1

Perhaps [[[UIApplication sharedApplication] delegate] json]?

(And please, don’t send synchronous requests on the main thread while the application is launching!)