srstanic

extension UIView {

    func show(animated: Bool) {
        self.isHidden = false
        if animated {
            UIView.animate(
                withDuration: animationDuration,
                animations: {
                    self.alpha = 1
                }

srstanic

extension UIScrollView {

    func scrollToLeft(for distance: CGFloat, withAnimationDuration animationDuration: TimeInterval = 0.3) {
        var newOffset = self.contentOffset.x - distance
        if newOffset < 0 {
            newOffset = 0
        }
        UIView.animate(withDuration: animationDuration) {
            self.contentOffset.x = newOffset
        }

srstanic

import UIKit

extension UITableViewCell {
    class var reuseIdentifier: String {
        return "tableViewCell"
    }
}

extension Collection {
    /// Returns the element at the specified index if it is within bounds, otherwise nil.

srstanic

import Foundation


typealias VoidVoid = () -> ()


protocol Repeating {

    func startRepeating(withIntervalInSeconds: TimeInterval)
    func stopRepeating()

srstanic

import Foundation

protocol ModelStateDelegate: class {
    func onModelStateOutdated()
}

class ModelState {
    weak var delegate: ModelStateDelegate?

    init(updateNotification: Foundation.Notification.Name, itemId: String? = nil, outdated: Bool = true) {

srstanic

class NakedTabBarContorller: UITabBarController {
    override func viewDidLoad() {
        super.viewDidLoad()
        self.tabBar.isHidden = true
    }
}

srstanic

import Foundation


protocol Repeating {

    func startRepeating(withIntervalInSeconds: TimeInterval)
    func stopRepeating()

}

srstanic

import UIKit

/// Extend `NibView` to create a reusable view in a XIB file.
/// The contents of the view are designed in a XIB file.
/// The `NibView` class is responsible for loading the
/// contents of the XIB file and setting it as its subview.
/// File's Owner in the XIB file needs to be set to the
/// view class extending the `NibView`. Any outlets defined
/// in that class need to be connected to the File's Owner.
open class NibView: UIView {

srstanic

extension Optional where Wrapped == String {
    var orEmpty: String {
        switch self {
        case .some(let value):
            return value
        case .none:
            return ""
        }
    }
}

srstanic

extension UIImage {
    func tinted(with color: UIColor) -> UIImage? {
        let maskImage = cgImage
        let bounds = CGRect(origin: .zero, size: size)
        let renderer = UIGraphicsImageRenderer(size: size)

        // QuartzCore origin .zero is bottom-left, while UIKit's is top-left.
        let tintedButFlippedImage = renderer.image { context in
            let cgContext = context.cgContext
            cgContext.clip(to: bounds, mask: maskImage!)