If you work on a Swift project that follows the Model-View-ViewModel (MVVM) architecture or similar, you may want to jump to counterpart in Xcode from your view to your model, and then to your view model. (ie. by using Ctrl+Cmd+Up and Ctrl+Cmd+Down).
You can do this in recent versions of Xcode by setting a configuration default.
From a terminal, just type this command and press Enter:
defaults write com.apple.dt.Xcode IDEAdditionalCounterpartSuffixes -array-add "ViewModel" "View"
| // | |
| // TalkDockViewController.swift | |
| // Dockee | |
| // | |
| // Created by Danny Hertz on 11/30/18. | |
| // Copyright © 2018 Danny Hertz. All rights reserved. | |
| // | |
| import Foundation | |
| import RxCocoa |
| import XCTest | |
| /// An expectation that is fulfilled when a Key Value Observing (KVO) condition | |
| /// is met. It's variant of `XCTKVOExpectation` with support for native Swift | |
| /// key paths. | |
| final class KVOExpectation: XCTestExpectation { | |
| private var kvoToken: NSKeyValueObservation? | |
| /// Creates an expectation that is fulfilled when a KVO change causes the | |
| /// specified key path of the observed object to have an expected value. |
Modern Cocoa development involves a lot of asynchronous programming using closures and completion handlers, but these APIs are hard to use. This gets particularly problematic when many asynchronous operations are used, error handling is required, or control flow between asynchronous calls gets complicated. This proposal describes a language extension to make this a lot more natural and less error prone.
This paper introduces a first class Coroutine model to Swift. Functions can opt into to being async, allowing the programmer to compose complex logic involving asynchronous operations, leaving the compiler in charge of producing the necessary closures and state machines to implement that logic.
Here's my own list of the interesting stuff announced during this year's WWDC, collected from the keynotes, various Apple docs, blog posts and tweets.
If you're planning to watch the videos, I really recommend this Mac app that helps you download and watch them: https://github.com/insidegui/WWDC.
http://www.apple.com/osx/elcapitan-preview/
| import Cocoa | |
| struct Person { | |
| var name: String = "John" | |
| var age: Int = 50 | |
| var dutch: Bool = false | |
| var address: Address? = Address(street: "Market St.") | |
| } | |
| struct Address { |
| // Created by Indragie on 5/3/15. | |
| // Copyright (c) 2015 Indragie Karunaratne. All rights reserved. | |
| import UIKit | |
| public protocol ThemeType { | |
| typealias Target | |
| func apply(target: Target) | |
| } |
This is a draft list of what we're thinking about measuring in Etsy's native apps.
Currently we're looking at how to measure these things with Espresso and Kif (or if each metric is even possible to measure in an automated way). We'd like to build internal dashboards and alerts around regressions in these metrics using automated tests. In the future, we'll want to measure most of these things with RUM too.
