krzyzanowskim

import Cocoa

// for-in
func checkForIn(array: [Int], dict: [Int: String]) {
    for num in array where dict[num] != nil {
        num
    }
}

checkForIn([1,2,3,4], dict: [1:"one", 2:"two"])

marchinram

import UIKit

extension UIImage {
    subscript (x: Int, y: Int) -> UIColor? {
        guard x >= 0 && x < Int(size.width) && y >= 0 && y < Int(size.height),
            let cgImage = cgImage,
            let provider = cgImage.dataProvider,
            let providerData = provider.data,
            let data = CFDataGetBytePtr(providerData) else {
            return nil

hamin

    // Discussion on how to do custom cropping overlay on UIImageViewPicker
    // https://gist.github.com/Raiden996/74ea67db8f17673f1b8b
    
    func navigationController(navigationController: UINavigationController, willShowViewController viewController: UIViewController, animated: Bool) {
        println("viewcontrollers count: \(navigationController.viewControllers.count)")

        if navigationController.viewControllers.count == 3 {
            println("viewcontrollers name: \(navigationController.viewControllers[2].classString())")
            if (navigationController.viewControllers[2].classString() == "PUUIImageViewController") || (navigationController.viewControllers[2].classString() == "PLUIImageViewController") {
                addOverlayToImagePicker(viewController)

jokester

// extract pixel from a CGImage
/* use case:
    let extractor = PixelExtractor(img: UIImage(named: "gauge_vertical")!.CGImage!)
    let color = extractor.color_at(x: 10, y: 20)
*/

class PixelExtractor {
    // taken from http://stackoverflow.com/questions/24049313/
    // and adapted to swift 1.2

neojou

//
//  ViewController.swift
//  GetLocation
//
//  Created by neojou on 2014/11/23.
//  Copyright (c) 2014年 neojou. All rights reserved.
//

import UIKit
import CoreLocation

minorbug

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"

kristopherjohnson

import UIKit

/// Wrapper for the NSNotification userInfo values associated with a keyboard notification.
///
/// It provides properties that retrieve userInfo dictionary values with these keys:
/// 
/// - UIKeyboardFrameBeginUserInfoKey
/// - UIKeyboardFrameEndUserInfoKey
/// - UIKeyboardAnimationDurationUserInfoKey
/// - UIKeyboardAnimationCurveUserInfoKey

mchirico

/*
You need to import EventKit

import EventKit

*/
    @IBAction func buttonCalendar(sender: AnyObject) {
        
        var eventStore : EKEventStore = EKEventStore()
        // 'EKEntityTypeReminder' or 'EKEntityTypeEvent'

genedelisa

class Sound : NSObject {

    /// The player.
    var avPlayer:AVAudioPlayer!
    
    /**
    Uses AvAudioPlayer to play a sound file. 
    The player instance needs to be an instance variable. Otherwise it will disappear before playing.
    */
    func readFileIntoAVPlayer() {

calebd

extension Array {
    
    func first() -> Element? {
        if isEmpty {
            return nil
        }
        return self[0]
    }
    
    func last() -> Element? {