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PONSLog returns (null) when logging string from another view controller
 

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    <p>I posted a question earlier about the same thing, but now I have made a simple project to show what I am doing, so the problem can be found easier.</p> <p>I have two viewControllers, one is called ViewController and the other SecondViewController. I tried sending a NSString called testy to a viewController and logging it, but it returned null.</p> <p>Here is my code trying to send the string from viewController to secondViewController</p> <h1>ViewController.m</h1> <pre><code>#import "ViewController.h" #import "SecondViewController.h" @interface ViewController () @end @implementation ViewController @synthesize cellName; - (void)viewDidLoad { [super viewDidLoad]; cellName = @"testy"; SecondViewController *obj = [[SecondViewController alloc] init]; obj.cellName2 = self.cellName; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } @end </code></pre> <h1>ViewController.h</h1> <pre><code>#import &lt;UIKit/UIKit.h&gt; @interface ViewController : UIViewController { } @property(nonatomic,retain) NSString *cellName; @end </code></pre> <hr> <h1>SecondViewController.m</h1> <pre><code>#import "SecondViewController.h" #import "ViewController.h" @interface SecondViewController () @end @implementation SecondViewController @synthesize cellName2; - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { // Custom initialization } return self; } - (void)viewDidLoad { [super viewDidLoad]; } - (void)viewDidAppear:(BOOL)animated { NSLog(@"%@",cellName2); } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } @end </code></pre> <h1>SecondViewController.h</h1> <pre><code>#import &lt;UIKit/UIKit.h&gt; @interface SecondViewController : UIViewController { } @property(nonatomic,retain) NSString *cellName2; @end </code></pre> <hr> <h1>Edit</h1> <p>I would like to say that my storyboard has two viewController that each have a button. Each button modally brings you to the other view. </p>
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    1. COHave you tried to add a breakpoint and look at the variables and properties involved? And if so, what did you see?
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    2. COdont know how to use those
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    3. COAre you using ARC? If so, you should be using `strong` instead of `retain`. If not, you should be sending `autorelease` when you initialize `SecondViewController *obj`.
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