evgeniyd

import Foundation

func += <KeyType, ValueType> (inout left: Dictionary<KeyType, ValueType>, right: Dictionary<KeyType, ValueType>) {
    for (k, v) in right {
      left.updateValue(v, forKey: k)
    }
}

evgeniyd

import UIKit

extension UIImage {
    public class func imageWithScreenshotFromView(view: UIView) -> UIImage! {
        UIGraphicsBeginImageContextWithOptions(view.bounds.size, false, UIScreen.mainScreen().scale)
        view.drawViewHierarchyInRect(view.bounds, afterScreenUpdates: true)
        let image: UIImage = UIGraphicsGetImageFromCurrentImageContext()
        UIGraphicsEndImageContext()
        return image
    }

evgeniyd

import Foundation
 
protocol Validator {
    func validateWithError(error: NSErrorPointer) -> Bool
}
///////////////////////////////////////////////
// MARK: - PasswordValidator -
///////////////////////////////////////////////
class PasswordValidator: Validator {
    

evgeniyd

import UIKit

extension UIColor {

    class func customGrayColor() -> UIColor {
        let r: CGFloat = CGFloat(41.0/255.0)
        let g: CGFloat = CGFloat(41.0/255.0)
        let b: CGFloat = CGFloat(41.0/255.0)
        return UIColor(red: r, green: g, blue: b, alpha: 1.0)
    }

evgeniyd

import Foundation

private var sDateFormatter: NSDateFormatter = NSDateFormatter()

extension NSDate
{
    convenience
    init?(fromDateString dateString: String) {
        sDateFormatter.dateFormat = "yyyy'-'MM'-'dd'T'HH':'mm':'ss'Z'"
        sDateFormatter.timeZone = NSTimeZone(forSecondsFromGMT: 0)

evgeniyd

import Foundation

extension NSNumber
{
    var timeIntervalValue: NSTimeInterval {
        get {
            return (self.doubleValue as NSTimeInterval)
        }
        // TODO: write a setter
    }

evgeniyd

import UIKit

extension UIColor {

    class func colorWithComponents(red redComponent: Float, green: Float, blue: Float, alpha: Float) -> UIColor {
        let r: CGFloat = CGFloat(redComponent/255.0)
        let g: CGFloat = CGFloat(green/255.0)
        let b: CGFloat = CGFloat(blue/255.0)
        let a: CGFloat = CGFloat(alpha)
        return UIColor(red: r, green: g, blue: b, alpha: a)

evgeniyd

import UIKit

enum MPSTableViewCellSeparator {
    case Default, None
    
    // returns views for each style - very convinient
    func view() -> UIView? {
        switch (self) {
        case .None:
            return nil

evgeniyd

import Foundation

class UBINullableSortDescriptor: NSSortDescriptor {
    
    override init(key: String, ascending: Bool) {
        super.init(key: key, ascending: ascending)
    }
    
    required override init(key: String, ascending: Bool, selector: Selector) {
        super.init(key: key, ascending: ascending, selector: selector)

evgeniyd

#import <Foundation/Foundation.h>

@interface NSString (URLValidation)
- (BOOL)isValidURL;
@end