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    <p>The method reverseGeocodeLocation:completionHandler: is executed asynchronously, which means that it will move on to the next lines before it finishes.</p> <p><a href="https://stackoverflow.com/questions/748175/asynchronous-vs-synchronous-execution-what-does-it-really-mean">Asynchronous vs synchronous execution, what does it really mean?</a></p> <p>It is called asynchronously because the method reverseGeocodeLocation:completionHandler: might need some time to do it, and when it is finished, the completion block is called. </p> <p>You should place the new birthplace pin only after the completion block of the reverseGeocodeLocation is called, for example inside the completion block, to ensure you have got the placemark data first before placing the pin. Or you can just update the subtitle of the newly added pin inside the completion block.</p> <pre><code>[ceo reverseGeocodeLocation: loc completionHandler: ^(NSArray *placemarks, NSError *error) { CLPlacemark *placemark = [placemarks objectAtIndex:0]; //String to hold address NSString *locatedAt = [[placemark.addressDictionary valueForKey:@"FormattedAddressLines"] componentsJoinedByString:@", "]; // save the address text globalsSingle.gblAddress = locatedAt; //place new birthplace pin MKPointAnnotation *birthPlacePin = [[MKPointAnnotation alloc] init]; birthPlacePin.coordinate = globalsSingle.gblBirthplace; birthPlacePin.title = @"My Birthplace"; birthPlacePin.subtitle = globalsSingle.gblAddress; [self.fullMapView addAnnotation:birthPlacePin]; } ]; } </code></pre>
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    1. USValent Richie
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    1. COThankyou for the reply, and that is actually a great idea. However... no dice. I think there is something about MKPointAnnotation subtitle - or any of the other elements - that can't play with a variable. It takes straight text fine. I'm going to try to use a different implementation via MKAnnotation or MKAnnotationView... maybe...
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      1. USKen Williamson
    2. COP.S. The result was the same issue I've been having... the subtitle value refuses to display, and there's still that esoteric warning.
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      1. USKen Williamson
    3. CO@KenWilliamson then it is a different issue altogether. I thought the question was about the sequence of the code executed.
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      1. USValent Richie
 

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