srstanic

enum LoadableContentState<LoadedContentType, ErrorContentType> {
  case loading
  case loaded(content: LoadedContentType)
  case error(content: ErrorContentType)
}

// error content for the transactions list screen
struct TransactionsListLoadingErrorContent {
  let title: String
  let subtitle: String

srstanic

// Presenter

typealias SomeViewModel = String // this is just a placeholder for your view model type

protocol SomeView {
    func showSomething(viewModel: SomeViewModel)
}

protocol SomeViewOutput {
    func onUserAction()

srstanic

import UIKit

protocol CellController {
    func getCell(collectionView: UICollectionView, indexPath: IndexPath) -> UICollectionViewCell
}

struct TextItemModel {
    let title: String
}

srstanic

import UIKit

struct CollectionItemModel {
    let title: String?
    let image: UIImage?
}

struct CellController {
    var model: CollectionItemModel
    func getCell(collectionView: UICollectionView, indexPath: IndexPath) -> UICollectionViewCell {

srstanic

import UIKit

struct CollectionItemModel {
    let title: String?
    let image: UIImage?
}

/// First set `model` and then present on screen.
final class MyCollectionViewController: UICollectionViewController {
    var models: [CollectionItemModel]?

srstanic

import XCTest
import Combine
import RealmSwift

class RealmMultiThreadingStaleDataTests: XCTestCase {
    private var cancellables: Set<AnyCancellable>!
    
    override func setUpWithError() throws {
        super.setUp()
        cancellables = []

srstanic

autoload -U colors && colors

## rbenv
eval "$(rbenv init - zsh)"

## git
autoload -Uz vcs_info
zstyle ':vcs_info:*' enable git svn
zstyle ':vcs_info:git*' formats "%r/%S%{$fg[grey]%} %{$fg[blue]%}%b%{$reset_color%} (%a) %m%u%c%{$reset_color%} "
precmd() {

srstanic

extension UIView {
    static func withoutConstraints() -> Self {
        let instance = self.init()
        instance.translatesAutoresizingMaskIntoConstraints = false
        return instance
    }

    func addSubviews(_ views: UIView...) {
        for view in views {
            addSubview(view)

srstanic

/// Inspired by
/// http://blog.benjamin-encz.de/post/main-queue-vs-main-thread/
/// and https://stackoverflow.com/a/60348601
/// Associates a predefined key/value pair with the main queue and later uses the presence of it
/// to determine whether the current queue is the main queue.
extension DispatchQueue {
    private static let mainQueueCheckKey: DispatchSpecificKey<String> = {
        let mainQueueCheckKey = DispatchSpecificKey<String>()
        DispatchQueue.main.setSpecific(key: mainQueueCheckKey, value: mainQueueCheckValue)
        return mainQueueCheckKey

srstanic

extension FileManager {
    func isDirectory(at url: URL) -> Bool {
        var isDirectory: ObjCBool = false
        guard FileManager.default.fileExists(atPath: url.path, isDirectory: &isDirectory) else {
            return false
        }
        return isDirectory.boolValue
    }
}