ktanaka117

let textColorAnimation = CABasicAnimation(keyPath: "foregroundColor")
textColorAnimation.duration = 2.0 / 3 // duration = 30fpsのうちの約20frame
textColorAnimation.fromValue = Color.primaryBrand.cgColor
textColorAnimation.toValue = Color.black.cgColor
textColorAnimation.fillMode = .forwards

UIView.animate(withDuration: 2.0 / 3, animations: { [weak self] in
   guard let strongSelf = self else { return }
    strongSelf.animationText.add(textColorAnimation, forKey: "TextColor")
})

ktanaka117

let transformTrans = CGAffineTransform(translationX: 0, y: -animationViewCenterMovementAmount)
let transformScale = CGAffineTransform(scaleX: 0.8, y: 0.8)
animationView.transform = transformTrans.concatenating(transformScale)

ktanaka117

let transformTrans = CGAffineTransform(translationX: 0, y: -animationViewCenterMovementAmount)
let transformScale = CGAffineTransform(scaleX: 0.8, y: 0.8)
animationView.transform = transformScale.concatenating(transformTrans)

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view.layoutIfNeeded()
animationView.play { [weak self] _ in
   UIView.animate(withDuration: 1.0, animations: { [weak self] in
       self?.widthConstraint.constant = 300
       self?.heightConstraint.constant = 300
       self?.view.layoutIfNeeded()
   })
}

ktanaka117

func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, referenceSizeForHeaderInSection section: Int) -> CGSize {}

ktanaka117

// ここでは Boat_Loader.json というバンドルされたアニメーションファイルを設定
let boatAnimation = LOTAnimationView(name: "Boat_Loader")
boatAnimation.contentMode = .scaleAspectFill
boatAnimation.frame = view.bounds
view.addSubview(boatAnimation)

boatAnimation.play()

ktanaka117

import UIKit

class ViewController: UIViewController {
    var presenter: Presenter!
    func inject(presenter: Presenter) {
        self.presenter = presenter
    }

    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)

ktanaka117

// まとめ
// ①ImplicitlyUnwrappedOptional<T>で宣言された変数に、Tに　"as!" でダウンキャストした変数を代入しようとすると、「それはnilにはならない（はず）」と警告が出る
// ②IUOで宣言した変数にはnilが入ることを前提とした上で、利用側でnilが入らない挙動を期待する場合は!をつけるように要求する変更



// ①
class ViewController {}
class PageViewController: ViewController {}

ktanaka117

import XCTest
import KeychainAccess
@testable import AwesomeIOSDC

class AuthDataStoreTests: XCTestCase {
    private let testAccessToken = "TestAccessToken"
    private let accessTokenKey = "AccessToken"
    private let keychain = Keychain(service: "TestService")

    func testSaveAccessToken() {

ktanaka117

import XCTest
import KeychainAccess
@testable import AwesomeIOSDC

class AuthDataStoreTests: XCTestCase {
    let keychain = Keychain(service: Bundle.main.bundleIdentifier!) // ②

    func testSaveAccessToken() {
        let authDataStore = AuthDataStore() // ①
        authDataStore.save(accessToken: "Congrats iOSDC "2018🎉") // ③, ④, ⑦