Anatoli-Petrosyants

import RxSwift
import RxCocoa
func keyboardHeight() -> Observable<CGFloat> {
    return Observable
            .from([
                    NotificationCenter.default.rx.notification(NSNotification.Name.UIKeyboardWillShow)
                            .map { notification -> CGFloat in
                                (notification.userInfo?[UIKeyboardFrameBeginUserInfoKey] as? NSValue)?.cgRectValue.height ?? 0
                            },

Anatoli-Petrosyants

import Foundation
import UIKit

struct BaseStyles {
    static func rounded<V: UIView>(cornerRadius r: CGFloat = 5.5) -> UIViewStyle<V> {
        return UIViewStyle<V>(styling: { (view: V) in
            view.layer.masksToBounds = true
            view.clipsToBounds = true
            view.layer.cornerRadius = r
        })

Anatoli-Petrosyants

import Foundation
import UIKit

// MARK: Protocol Definition
/// Make your UIView subclasses conform to this protocol when:
///  * they *are* NIB-based, and
///  * this class is used as the XIB's root view
///
/// to be able to instantiate them from the NIB in a type-safe manner
public protocol NibLoadable: class {

Anatoli-Petrosyants

import Foundation
import UIKit

class Notification {
    
    // Shows a Notification from a NotificationType
    public static func showNotification(type: NotificationType, completion: @escaping () -> () = {}) {
        
        let view = NotificationView()        
        view.setBackgroundColor(color: type.backgroundColor)

Anatoli-Petrosyants

extension UIColor {
    
    convenience init(hexString: String, alpha: CGFloat = 1.0) {
        let hexString: String = hexString.trimmingCharacters(in: CharacterSet.whitespacesAndNewlines)
        let scanner = Scanner(string: hexString)
        if (hexString.hasPrefix("#")) {
            scanner.scanLocation = 1
        }
        var color: UInt32 = 0
        scanner.scanHexInt32(&color)

Anatoli-Petrosyants

extension UIApplication {
    static var appVersion: String? {
        return Bundle.main.object(forInfoDictionaryKey: "CFBundleShortVersionString") as? String
    }
}

Anatoli-Petrosyants

extension UIApplication {    
    class func topViewController(_ viewController: UIViewController? = UIApplication.shared.keyWindow?.rootViewController) -> UIViewController? {
        if let nav = viewController as? UINavigationController {
            return topViewController(nav.visibleViewController)
        }
        if let tab = viewController as? UITabBarController {
            if let selected = tab.selectedViewController {
                return topViewController(selected)
            }
        }

Anatoli-Petrosyants

extension UIButton {
    // https://stackoverflow.com/questions/14523348/how-to-change-the-background-color-of-a-uibutton-while-its-highlighted
    private func image(withColor color: UIColor) -> UIImage? {
        let rect = CGRect(x: 0.0, y: 0.0, width: 1.0, height: 1.0)
        UIGraphicsBeginImageContext(rect.size)
        let context = UIGraphicsGetCurrentContext()
        
        context?.setFillColor(color.cgColor)
        context?.fill(rect)
        

Anatoli-Petrosyants

extension CGFloat {
    static var random: CGFloat {
        return CGFloat(arc4random()) / CGFloat(UInt32.max)
    }
}

extension UIColor {
    static var random: UIColor {
        return UIColor(red: .random, green: .random, blue: .random, alpha: 1.0)
    }

Anatoli-Petrosyants

extension Int {
    func toString() -> String {
        return "\(self)"
    }

    func toObjCString() -> NSString {
        return NSString(format: "%d", self)
    }

    func toDouble() -> Double {