In Objective C, can you check if an object has a particular property or message?

Question

I wat to do something like this:

if (viewController.mapView) [viewController.mapView someMethod];

However, if mapView is not a class variab

Answer 1

Also, As Jason poninted out here, you can also use NSSelectorFromString to dynamically check at runtime. E.g.

if ([self respondsToSelector:NSSelectorFromString(elementName)]) 
{
    [self setValue:elementInnerText forKey:elementName];
}