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POPassing NSArray makes array empty
 

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  1. POPassing NSArray makes array empty
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    <p>i'm trying to pass an array from a view to another using the PrepareForSegue method. In the first view i got a button called "Submit" that, if pressed, reads a textView and store the text in a NSArray, and then should pass this array to another view (push segue), but when the array arrives is empty. Here is the code</p> <pre><code>//.h @property (strong, nonatomic) NSArray *words; //.m - (IBAction)Submit:(id)sender{ //read textView _words = [self.myTextView.text componentsSeparatedByCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]; } - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender { //if Submit is pressed go to SecondViewController if ([segue.identifier isEqualToString:@"secondSegue"]) { SecondViewController *vc = [segue destinationViewController]; vc.array = _words; } } </code></pre> <p>So here is the code of the SecondViewController that receives the array</p> <pre><code>- (void)viewDidLoad { [self Calculate]; [super viewDidLoad]; // Do any additional setup after loading the view. } -(void)Calculate { int size = [array count]; NSLog(@"size is %d",size); } </code></pre> <p>the log always says "size is 0". Did i make some mistake? Could it be that the Segue happens before i can read the TextView and fill the array so it's always empty? thanks in advance!</p> <p><strong>EDIT:</strong> I tried to NSLog the Submit action and i discovered that the program never accesses to it, so it never reads! (p.s. yes i connected the button) So the segue happens before the Submit action How can i solve? can i copy the PrepareForSegue code in the Submit action?</p>
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    1. PO
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    1. This table or related slice is empty.
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
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    1. This table or related slice is empty.
    1. COYou'll get the "size is 0" response when `array` is nil.
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      1. POPassing NSArray makes array empty
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    2. COAre you sure the array is empty and not nil?
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      1. POPassing NSArray makes array empty
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    3. COThe usual reason for a nil property in this general scenario is setting the property in a different instance of the class from the one that is later referenced.
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      1. POPassing NSArray makes array empty
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