Not accessing value from Object - object

Question

I have a NSObject called GettingHere which has a NSString *content.
I then have a UIViewController on which I create a button programatically as follows (this button working as intended):
byAirButton = [UIButton buttonWithType:UIButtonTypeCustom];
byAirButton.tag = 1;
byAirButton.frame = CGRectMake(25, 140, 280.f, 40.f);
UIImage *airButton = [UIImage imageNamed:#"gettingHereByAirButton.png"];
[byAirButton setBackgroundImage:airButton forState:UIControlStateNormal];
[self.view addSubview:byAirButton];
[byAirButton addTarget:self action:#selector(byAirButtonClicked) forControlEvents:UIControlEventTouchUpInside];
For the action:#selector(byAirButtonClicked), I do the following. gettingHere is an instance of the GettingHere object.
- (void) byAirButtonClicked
{
gettingHere.content = #"This is how to get here by Air";
NSLog(#"Content: %#", gettingHere.content);
[self performSegueWithIdentifier:#"gettingHereSegue" sender:self];
}
The idea is to set the content for my GettingHere object and then just call that from the next view (GettingHereViewController) when the user clicks the byAirButton.
This NSLog shows that content is being set.
In my prepareForSegue, I do the following:
- (void) prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([segue.identifier isEqualToString:#"gettingHereSegue"])
{
NSLog(#"Content to be passed: %#", gettingHere.content);
GettingHereViewController *vc = (GettingHereViewController *)segue.destinationViewController;
vc.gettingHere.content = gettingHere.content;
}
}
The segue works fine, but the NSLog shows my gettingHere object values as being (null).
Can anyone tell me where I am going wrong please? I have stepped through it several times but can't figure out where I am going wrong.
EDIT: Here is how I instantiate the GettingHere Object.
In the SubNavViewController.h
#import "GettingHereContent.h"
#interface SubNavViewController : UIViewController
#property GettingHereContent *gettingHere;
In the SubNavViewController.m
#import "SubNavViewController.h"
#import "GettingHereViewController.h"
#import "GettingHereContent.h"
#interface SubNavViewController ()
#end
#implementation SubNavViewController
#synthesize gettingHere;
And here is how I create the GettingHere Object:
GettingHere.h
#import <Foundation/Foundation.h>
#interface GettingHereContent : NSObject
#property (nonatomic, strong) NSString *content;
#end
GettingHere.m
#import "GettingHereContent.h"
#implementation GettingHereContent
#synthesize content;
#end

Answer 1

You never alloc init your gettingHere property. Try this in your init method of your VC
gettingHere = [[GettingHereContent alloc] init];
Also don't forget to release it: answer from here: alloc + init with synthesized property - does it cause retain count to increase by two?
#interface Foo : Bar {
SomeClass* bla;
}
#property (nonatomic, retain) SomeClass* bla;
#end
#implementation Foo
#synthesize bla;
-(id)init {
...
bla = [[SomeClass alloc] init];
...
}
-(void)dealloc {
[bla release];
...
[super dealloc];
}