To Create the appDelegate variable and Access for Xcode 4.5

AppDelegate.h

@interface AppDelegate : UIResponder <UIApplicationDelegate>

{

NSMutableArray *testArray;

}

@property(nonatomic,retain)NSMutableArray *testArray;

AppDelegate.m

@synthesize testArrayName;

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions

{

testArrayName = [[NSMutableArray alloc]init];

}

ViewController.h

#import <UIKit/UIKit.h>

@class appDelegate;

@interface ViewController : UIViewController

{

appDelegate *appdelegate;

}

ViewController.m

#import "ViewController.h"

#import “ appDelegate.h”

- (void)viewDidLoad

{

appdelegate = (AppDelegate *)[[UIApplication sharedApplication]delegate];

}

To access the appdelegate varaable

Ex:

NSString *Desp=[appdelegate.arrayDescList objectAtIndex:appdelegate.objid1];