rainypixels

/*
 Swift Programming Language Guide
 "A Swift Tour" Solutions
 https://developer.apple.com/library/prerelease/ios/documentation/Swift/Conceptual/Swift_Programming_Language/GuidedTour.html#//apple_ref/doc/uid/TP40014097-CH2-XID_1
 
 These are the solutions to all the "experiments" in the pre-release Swift Programming Guide 
 (released on the same day Apple announced Swift). A couple of things worth noting:
 
 1. Swift syntax, e.g. array declarations, has changed since I releasd these. So this code will 
    probably cause some errors when you paste it into a playground. Should be easy enough to fix 

rgcottrell

class Singleton {
    class var sharedInstance: Singleton {
        struct Static {
            static var token: dispatch_once_t = 0
            static var instance: Singleton!
        }
        dispatch_once(&Static.token) {
            Static.instance = Singleton()
        }
        return Static.instance

kristopherjohnson

import QuartzCore

func executionTimeInterval(block: () -> ()) -> CFTimeInterval {
    let start = CACurrentMediaTime()
    block();
    let end = CACurrentMediaTime()
    return end - start
}

hansott

    func timeAgoSinceDate(date:NSDate, numericDates:Bool) -> String {
        let calendar = NSCalendar.currentCalendar()
        let unitFlags = NSCalendarUnit.CalendarUnitMinute | NSCalendarUnit.CalendarUnitHour | NSCalendarUnit.CalendarUnitDay | NSCalendarUnit.CalendarUnitWeekOfYear | NSCalendarUnit.CalendarUnitMonth | NSCalendarUnit.CalendarUnitYear | NSCalendarUnit.CalendarUnitSecond
        let now = NSDate()
        let earliest = now.earlierDate(date)
        let latest = (earliest == now) ? date : now
        let components:NSDateComponents = calendar.components(unitFlags, fromDate: earliest, toDate: latest, options: nil)
        if (components.year >= 2) {
            return "\(components.year) years ago"
        } else if (components.year >= 1){

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

jonathan-beebe

#import "UITextField+TintClearButton.h"

@implementation MyCustomTextFieldClass

- (void)layoutSubviews
{
    [super layoutSubviews];
    [self tintClearImage];
}

preble

final class Completion<R> {
	
	private let closure: (R) -> Void
	private var cancelled = false

	/// `closure` is called upon completion, if not cancelled.
	init(closure: (R) -> Void) {
		self.closure = closure
	}
	

stansidel

extension NSData {
    private func getHash(
            algorithm: (UnsafePointer<Void>, CC_LONG, UnsafeMutablePointer<UInt8>) -> UnsafeMutablePointer<UInt8>,
            digestLength: Int32
        ) -> String {
        let digestLen = Int(digestLength)
        let fileLen = CUnsignedInt(self.length)
        let buffer = UnsafeMutablePointer<CUnsignedChar>.alloc(digestLen)
        algorithm(self.bytes, fileLen, buffer)

raulriera

import UIKit

// This class allows the "presentedController" to receive touches
// https://pspdfkit.com/blog/2015/presentation-controllers/
class PSPDFTouchForwardingView: UIView {
    
    var passthroughViews: [UIView] = []
    
    override func hitTest(point: CGPoint, withEvent event: UIEvent?) -> UIView? {
        guard let hitView = super.hitTest(point, withEvent: event) else { return nil }

samsonjs

#!/usr/bin/env bash
#
# Based on http://merowing.info/2016/08/setting-up-pre-commit-hook-for-ios/

set -eu

diff-index() {
  git diff-index -p -M --cached HEAD -- "$@"
}