Backward compatibility of Xcode OSX

Question

How to use features such as viewDidLoad or appDidBecomeActive in Xcode 4.6.1 for OSX 10.8, which are available only for OSX 10.10 and above. Please

Answer 1

I'd override setView

@interface MyViewController : NSViewController 
@end

@implementation MyViewController 
- (void)setView:(NSView*)v {
    super.view = v;
    // if we're running on 10.8 or older…
    if (NSAppKitVersionNumber <= NSAppKitVersionNumber10_8) {
        [self viewDidLoad]; // call viewDidLoad (added in 10.9)
    }
}
@end