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    <p>I think you do have some misunderstanding there</p> <p>protocol and delegates are something that is passed around. in other words somebody need to be receiver and somebody need to be the sender. in your case.<br> update your protocol to this</p> <pre><code>@protocol defaultLocationChoice &lt;NSObject&gt; - (void)locChoice:(NSString *)updateString; // the method from delegate and implementer must be exact @end </code></pre> <p>and set implement the protocol to ViewController as a receiver</p> <pre><code>@interface VCReceiver : UIViewController &lt;defaultLocationChoice&gt; </code></pre> <p>then later in VCReceiver</p> <pre><code>- (void)viewDidLoad { ChooseServerViewController *vcSender = [[ChooseServerViewController alloc] init]; [vcSender setLocationDelegate:self]; // this is like saying. i have implemented method from protocol in this file (self) } - (void)locChoice:(NSString *)updateString { // update the VCReceiver here // or access vcSender value // or use the updateString value } </code></pre> <p>then in <code>ChooseServerViewController locChoice:</code> method (the one from your example) replace with this one and call <code>[self updateChoice]</code> instead:</p> <pre><code>- (void)updateChoice { if ([self.locationDelegate respondsToSelector:@selector(locChoice:)]) { [self.locationDelegate locChoice:aStringToUpdate]; // this will call VCReceiver locChoice } </code></pre> <p>it does not have to return anything because it is actually calling the VCReceiver method to tell it that <code>ChooseServerViewController</code> got the value ready to be read.</p>
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    1. POObjective-C iOS 6 delegate NSString query
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    1. USIkmal Ezzani
    1. USIkmal Ezzani
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