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POObjective-C iOS 6 delegate NSString query
 

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    <p>I'm trying to use a delegate to pass a value from one VC to another. I think I'm am misunderstanding the way it is supposed to work.</p> <p>In my main ViewController.h I have this:</p> <pre><code>@protocol defaultLocationChoice &lt;NSObject&gt; - (NSString *) locChoice; @end </code></pre> <p>In both my PreferencesViewController.h and ChooseServerViewController.h I have <code>defaultLocationChoice</code> declared in the @interface section and the property assinged like so:</p> <pre><code>@property (nonatomic, assign) id &lt;defaultLocationChoice&gt; locationDelegate; </code></pre> <p>Both are synthesized also. </p> <p>When the user segues from PreferencesViewController to ChooseServerViewController the prepare for segue code is:</p> <pre><code>- (void) prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender { if ([segue.identifier isEqualToString:@"toServerChoice"]) { ChooseServerViewController *viewController = (ChooseServerViewController *)segue.destinationViewController; viewController.locationDelegate = self; } } </code></pre> <p>When a cell choice is made in ChooseServerViewController I call:</p> <pre><code>[self locChoice]; </code></pre> <p>Which is:</p> <pre><code>- (NSString *) locChoice { NSLog(@"Cell Vale Loc choice %@",cellValue); return cellValue; } </code></pre> <p>The NSLog verifies the correct value is returned.</p> <p><strong>Now, as I think I understand it, the value of LocChoice in the delegate is now the value returned, no?</strong></p> <p>When the user goes back (NavController) the PreferencesViewController has:</p> <pre><code>-(void) viewWillAppear:(BOOL)animated { [super viewWillAppear:animated]; defaultLocation = [locationDelegate locChoice]; [self.tableView reloadData]; } </code></pre> <p>I was expecting the value of defaultLocation to now equal the value passed to locChoice. However when the table reloads the cell in question is still blank, implying what I exepct to happen isn't happening. </p> <p>Any ideas? </p>
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    1. USDan James Palmer
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    1. COHave you logged defaultLocation?
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      1. USShashank
 

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