NotificationCenter

Using Notification You can Make Interact Two Classes.

In ClassA You Need To Register Your Notification By Using Lines Of Code

In ClassA.h

-(void)getNotification:(NSNotification *)notify;

In ClassA.m File

-(void)viewDidLoad

{

......

  [[NSNotificationCenter defaultCenter]addObserver:self selector:@selector(getNotification:) name:@"Notification_Name" object:nil];

.....

}

# pragma mark Get Notification

-(void)getNotification:(NSNotification *)notify

{

    NSLog(@"Notify User info %@",notify.object);

    Array1 = notify.object;

}

To Post Notifcation From ClassB You Need To Write The Following Lines Of Codes

ClassB.m File

After Completing Required Action You Have Post Notification

-(IBAction)doneButton:(id)sender

{

      [[NSNotificationCenter defaultCenter] postNotificationName:@"Notification_Name" object:selectedArray userInfo:nil];

}