appdelegate.h
//
// UsingJSONAppDelegate.h
// UsingJSON
// Created by Wei-Meng Lee on 28/8/11.
// Copyright (c) 2011 __MyCompanyName__. All rights reserved.
#import <UIKit/UIKit.h>
@class UsingJSONViewController;
@interface UsingJSONAppDelegate : UIResponder <UIApplicationDelegate>
@property (strong, nonatomic) UIWindow *window;
@property (strong, nonatomic) UsingJSONViewController *viewController;
@property (strong,nonatomic)UINavigationController *nav;
@end
appdelegate.m