Set annotation's title as current address

Question

I want to get the current location\'s address and set it to the annotation\'s title. But it didn\'t work. I think it\'s because of the block, but I don\'t know how to fix it. An

Answer 1

You are returning the address while modifying it inside an asynchronous block. You should move the return inside the block, or a create a protocol to handle passing this information back to the caller.

Change the block to this:

- (void)addrAtLocation:(CLLocation *)location{
    [self.geocoder reverseGeocodeLocation:location completionHandler:^(NSArray *placemark, NSError *error) {
        CLPlacemark *topResult = [placemark objectAtIndex:0];
        whereAmIAnnotation.addr = [NSString stringWithFormat:@"%@ %@ %@ %@", topResult.country, topResult.locality, topResult.subLocality, topResult.thoroughfare];
    }];
}

Then make whereAmIAnnotation a member variable. Do you understand WHY this fixes your issues?