brocoo

// MARK: - NSError 

public enum ErrorType: Int {
    
    case Unknown = 1
    case NotAuthenticated = 2
    
    func localizedUserInfo() -> [String: String] {
        var localizedDescription: String = ""
        var localizedFailureReasonError: String = ""

klundberg

// these functions take a swift class's statically referenced method and the instance those methods
// should apply to, and returns a function that weakly captures the instance so that you don't have
// to worry about memory retain cycles if you want to directly use an instance method as a handler
// for some object, like NSNotificationCenter.
//
// For more information, see this post:
// http://www.klundberg.com/blog/capturing-objects-weakly-in-instance-method-references-in-swift/

func weakify <T: AnyObject, U>(owner: T, f: T->U->()) -> U -> () {
    return { [weak owner] obj in

mikeash

class ArrayImpl<T> {
    var space: Int
    var count: Int
    var ptr: UnsafeMutablePointer<T>
    
    init(count: Int = 0, ptr: UnsafeMutablePointer<T> = nil) {
        self.count = count
        self.space = count
        

brocoo

// MARK: - UIImage (Base64 Encoding)

public enum ImageFormat {
    case PNG
    case JPEG(CGFloat)
}

extension UIImage {
    
    public func base64(format: ImageFormat) -> String {

brocoo

public func delay(time: Double, completion: () -> Void) {
    let ms = dispatch_time(DISPATCH_TIME_NOW, Int64(time * Double(NSEC_PER_SEC)))
    dispatch_after(ms, dispatch_get_main_queue()) {
        () -> Void in
        completion()
    }
}

public func delay(time: Double) -> (()->Void) -> Void {
    return {

brocoo

    public func flushCookies() {
        let storage = NSHTTPCookieStorage.sharedHTTPCookieStorage()
        if let cookieJar = storage.cookies as? [NSHTTPCookie] {
            for cookie in cookieJar { storage.deleteCookie(cookie) }
        }
        NSUserDefaults.standardUserDefaults().synchronize()
    }

mackuba

Here's my own list of the interesting stuff announced during this year's WWDC, collected from the keynotes, various Apple docs, blog posts and tweets.

If you're planning to watch the videos, I really recommend this Mac app that helps you download and watch them: https://github.com/insidegui/WWDC.

OS X El Capitan

http://www.apple.com/osx/elcapitan-preview/

• split view - two apps side by side on full screen

brocoo

struct Settings {
    
    // Make sure to add the "-D DEBUG" flag in the project settings for the Swift Compiler
    static var Debug: Bool {
        #if DEBUG
            return true
        #else
            return false
        #endif
    }

brocoo

extension CGPoint {
    
    public enum CoordinateSystem {
        case UIKit
        case SpriteKit
    }
    
    public func coordinates(from from: CoordinateSystem, to: CoordinateSystem) -> CGPoint {
        if from == to { return self }
        else  {

brocoo

// MARK: - NSUserDefaults

extension NSUserDefaults {
    
    class func performOnceForKey(key: String, perform: () -> Void, elsePerform: (() -> Void)? = nil) {
        let once = self.standardUserDefaults().objectForKey(key)
        self.standardUserDefaults().setBool(true, forKey: key)
        self.standardUserDefaults().synchronize()
        
        if once == nil { perform() }