Lascorbe

// Option without self
class Foo1 {
    private let controller: UIViewController = {
        return UIStoryboard(name: "Main", bundle: nil).instantiateInitialViewController()!
    }()
    
    private lazy var window: UIWindow = {
        let window = UIWindow(frame: UIScreen.mainScreen().bounds)
        window.backgroundColor = UIColor.whiteColor()
        window.makeKeyAndVisible()

rnystrom

//
//  RN3DTouchGestureRecognizer.swift
//
//  Created by Ryan Nystrom on 10/10/15.
//  Copyright © 2015 Ryan Nystrom. All rights reserved.
//

import UIKit.UIGestureRecognizerSubclass

class RN3DTouchGestureRecognizer: UIGestureRecognizer {

beccadax

let color = "blue"
let num = 42

localized("Colorless green ideas sleep furiously.")
localized("Colorless \(color) ideas sleep furiously.")
localized("\(num.formatted("%05d")) colorless green ideas sleep furiously.")

natecook1000

// If we extend UnicodeScalar to conform to ForwardIndexType, we can create and map a Range.

extension UnicodeScalar: ForwardIndexType {
    public func successor() -> UnicodeScalar {
        return UnicodeScalar(value + 1)
    }
}

let alphabet = ("A"..."Z" as Range).map { String($0) }
// ["A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"]

erica

// CONSTRUCTING ALPHABET ARRAY

// This my favorite because it's easily used with any character set
extension NSCharacterSet {
    var members: [String] {
        let unichars = Array(unichar(0)..<unichar(128)).filter({self.characterIsMember($0)})
        return unichars.map({String(UnicodeScalar($0))})
    }
}

phynet

Update

I've moved this gist to https://github.com/phynet/iOS-Schemes please check it there ;)

smileyborg

/**
 * The following preprocessor macros can be used to adopt the new nullability annotations and generics
 * features available in Xcode 7, while maintaining backwards compatibility with earlier versions of
 * Xcode that do not support these features.
 */

#if __has_feature(nullability)
#   define __ASSUME_NONNULL_BEGIN      NS_ASSUME_NONNULL_BEGIN
#   define __ASSUME_NONNULL_END        NS_ASSUME_NONNULL_END
#   define __NULLABLE                  nullable

0xced

@implementation UIClassSwapper

- (instancetype) initWithCoder:(UINibDecoder *)decoder
{
	NSString *className = [decoder decodeObjectForKey:@"UIClassName"];
	NSString *originalClassName = [decoder decodeObjectForKey:@"UIOriginalClassName"];
	
	Class class = NSClassFromString(className);
	Class originalClass = NSClassFromString(originalClassName);
	

tLewisII

// Need both of these, since one `adaptivePresentationStyleForPresentationController:` works on 8.0 to 8.2, and the other,
// `adaptivePresentationStyleForPresentationController:traitCollection:` works on 8.3 plus
- (UIModalPresentationStyle)adaptivePresentationStyleForPresentationController:(UIPresentationController *)controller {
    return UIModalPresentationNone;
}

- (UIModalPresentationStyle)adaptivePresentationStyleForPresentationController:(UIPresentationController *)controller traitCollection:(UITraitCollection *)traitCollection {
    return UIModalPresentationNone;
}

chriseidhof

//
//  AppDelegate.swift
//  TypedTableViewControllers
//
//  Created by Chris Eidhof on 23/03/15.
//  Copyright (c) 2015 Unsigned Integer. All rights reserved.
//

import UIKit