#import "AppDelegate.h" @interface AppDelegate () @end @implementation AppDelegate - (IBAction)toggleDeveloperMode:(id)sender { NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; [defaults setBool:![defaults boolForKey:@"DeveloperMode"] forKey:@"DeveloperMode"]; } - (BOOL)validateMenuItem:(NSMenuItem *)anItem { if ([anItem action] == @selector(toggleDeveloperMode:)) { [(NSMenuItem*)anItem setState:[[NSUserDefaults standardUserDefaults] boolForKey:@"DeveloperMode"]]; return true; } return false; } @end