StackOverflow2013

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18159135
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2013-08-10T06:04:01.677
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2013-08-11T05:46:20.340
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2013-08-11T05:46:20.340
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1104319
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1104319
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18158073
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2
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text
Body
You can create a protocol and set VC1 as delegate of VC2, and using <code>prepareForSegue</code> to set VC1 as VC2's delegate should work. I know that you said it didn't work, but I can't see why. Have a try with this : Give an identifier to your segue (on storyboard), and implement <code>prepareForSegue</code> as shown below : VC2Delegate.h : <pre><code>@protocol VC2Delegate - (void)updateLabel:(NSString *)text; @end </code></pre> VC1.h : <pre><code>#import "VC2Delegate.h" @interface VC1 : UIViewController <VC2Delegate> // All your stuff @end </code></pre> VC1.m : <pre><code>- (void)updateLabel:(NSString *)text { [_label setText:text]; } - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender { if ([[segue identifier] isEqualToString:@"YourSegueIdentifier"]) { VC2 * vc = [segue destinationViewController]; [vc2 setDelegate:self]; } } </code></pre> VC2.h : <pre><code>#import "VC2Delegate.h" @interface VC2 : UIViewController @property (weak, nonatomic) id<VC2Delegate>delegate; @end </code></pre> VC2.m <pre><code>- (void)textWasUpdated { // or whatever method where you detect the text has been changed if (_delegate) [_delegate updateLabel:[_textView text]]; } </code></pre> Tell me if it works. Else, is prepareForSegue even been called ? EDIT : Updated my answer (wasn't exactly what you needed). But as you say it doesn't work : <ul> <li>Is prepareForSegue called ?</li> <li>If so, is the delegate method called ?</li> <li>If the delegate method isn't called, check that delegate is not <code>nil</code>.</li> </ul> You might want to remove the segue, and present it modally by yourself, using <code>presentViewController:animated:completion:</code>, like that : <pre><code>- (IBAction)buttonWasTapped { static NSString * const idModalView = @"modalView"; static NSString * const storyBoardName = @"MainStoryBoard" UIStoryboard * storyboard = [UIStoryboard storyboardWithName:storyBoardName bundle:nil]; VC2 * vc = [storyboard instantiateViewControllerWithIdentifier:idModalView]; [vc setDelegate:self]; [self.navigationController presentViewController:vc2 animated:YES completion:nil]; } </code></pre>
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1. This table or related slice is empty.
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1. POAccess text from UITextField in modal View Controller from Home View Controller
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1. PTAnswer
UserLastEditorUserId
1. USDCMaxxx
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1. USDCMaxxx
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