lukeredpath

@implementation MySharedThing

+ (id)sharedInstance
{
  DEFINE_SHARED_INSTANCE_USING_BLOCK(^{
    return [[self alloc] init];
  });
}

@end

snikch

- (UIViewController *)topViewController{
  return [self topViewController:[UIApplication sharedApplication].keyWindow.rootViewController];
}

- (UIViewController *)topViewController:(UIViewController *)rootViewController
{
  if (rootViewController.presentedViewController == nil) {
    return rootViewController;
  }
  

aprato

// .h

@interface AMPNavigationBar : UINavigationBar

@property (nonatomic, assign) CGFloat extraColorLayerOpacity UI_APPEARANCE_SELECTOR;

@end

// .m

hlung

// ----------------------------------
//declaration in PRIVATE scope (for using only in your class)
// ----------------------------------
// declare in .m
static const int kTweetMaxCharacters = 140;
static NSString * const kHelloString = @"HELLO!";

// ----------------------------------
// declaration in PUBLIC scope (for using in other classes too)
// ----------------------------------

nex3

The PATH is an important concept when working on the command line. It's a list of directories that tell your operating system where to look for programs, so that you can just write script instead of /home/me/bin/script or C:\Users\Me\bin\script. But different operating systems have different ways to add a new directory to it:

Windows

1. The first step depends which version of Windows you're using:

• If you're using Windows 8 or 10, press the Windows key, then search for and