SSAC_iOS_Day 14 | TIL

👩‍💻 カリキュラムと追加学習

📂 Protocol

Property Requirements

protocol NavigationUIProtocol {
    var titleString: String { get set }
    var mainTintColor: UIColor { get }
}

class JackViewController: UIViewController, NavigationUIProtocol {
    var titleString: String = "나의 일기"
    var mainTintColor: UIColor = .black // get만 가능하다고 했는데 왜 set도 가능? -> get만 가능하다고 한 경우, get은 필수인데 set은 선택. 그니까 구현해도 ㄱㅊ음!!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        title = titleString
        view.backgroundColor = mainTintColor
    }
}

class Jack2ViewController: UIViewController, NavigationUIProtocol {
    var titleString: String {
        get {
            return "나의 일기"
        }
        set {
            title = newValue
        }
    }
    var mainTintColor: UIColor {
        get {
            return .black
        }
        set {
            view.backgroundColor = newValue
        }
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        titleString = "새로운 일기"
    }
}

Method Requirements

protocol OrderSystem {
    func recommendEventMenu()
    func askStampcard(count: Int) -> String
}

class StarBucksMenu {
    
}

class Smoothie: StarBucksMenu, OrderSystem {
    func recommendEventMenu() {
        print("스무디 이벤트 안내")
    }
    
    func askStampcard(count: Int) -> String {
        return "\(count)잔 적립 완료"
    }
}

class Coffee: StarBucksMenu, OrderSystem { 
    func recommendEventMenu() {
        print("커피 이벤트 안내")
    }
    
    func askStampcard(count: Int) -> String {
        return "\(count * 2)잔 적립 완료"
    }
}

Optional Requirements

@objc
protocol 프로토콜이름 {
	@objc optioanl func 메서드이름{}
}

Iniializer Requirements

protocol OrderSystem {
    func recommendEventMenu()
    init()
}

class Smoothie: StarBucksMenu, OrderSystem {
    func recommendEventMenu() {
        print("스무디 이벤트 안내")
    }
    
    // 부모에서도 init이 있을 수 있기 때문에 구별을 위해서 required를 붙임
    required init() {
    }
}

AnyObjects

protocol OrderSystem: AnyObject {
    func recommendEventMenu()
}

📂 Enumeration CaseIterable

enum SettingSection: Int, CaseIterable {
    case authorization
    case onlineShop
    case question
    
    var description: String {
        switch self {
        case .authorization:
            return "알림 설정"
        case .onlineShop:
            return "온라인 스토어"
        case .question:
            return "Q&A"
        }
    }
}

class SettingViewController: UIViewController {
    @IBOutlet var setttingTableView: UITableView!
    
    let settingList = [
        ["위치 알림 설정", "카메라 알림 설정"],
        ["교보 문고", "영풍 문고", "반디앤루니스"],
        ["앱스토어 리뷰 작성하기", "문의하기"]
    ]
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        setttingTableView.delegate = self
        setttingTableView.dataSource = self

        let nibName = UINib(nibName: DefaultTableViewCell.identifier, bundle: nil)
        setttingTableView.register(nibName, forCellReuseIdentifier: DefaultTableViewCell.identifier)
    }
    
}

extension SettingViewController: UITableViewDelegate, UITableViewDataSource {
    func numberOfSections(in tableView: UITableView) -> Int {
        // CaseIterable 프로토콜 사용해서 가능한 코드!
        return SettingSection.allCases.count
    }
    
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return settingList[section].count
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        guard let cell = tableView.dequeueReusableCell(withIdentifier: DefaultTableViewCell.identifier, for: indexPath) as? DefaultTableViewCell else {
            return UITableViewCell()
        }
        
        cell.iconImageView.backgroundColor = .blue
        cell.titleLabel.text = settingList[indexPath.section][indexPath.row]
        
        return cell
    }
    
    func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
        return SettingSection.allCases[section].description
    }
}

📂 Pass Data Between ViewControllers

var movieData: Movie?

titleTextField.text = movieData?.title
overviewTextView.text = movieData?.overview

override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        let sb = UIStoryboard(name: "Movie", bundle: nil)
        
        let vc = sb.instantiateViewController(withIdentifier: "detailBoxOfficeViewController") as! detailBoxOfficeViewController
        
        let data = movieInformation.movie[indexPath.row]
        vc.movieData = data <<
        self.navigationController?.pushViewController(vc, animated: true)
    }

📂 XIB

はモジュール化冗長ユニット設計を採用している.
よく使われるデザインでは、XIBを使うのがずっと便利です.

Table View Cellファイルを作成すると同時に、Also create XIB fileをチェックしてXIBファイルを生成します.

class DefaultTableViewCell: UITableViewCell {
    static let identifier = "DefaultTableViewCell"
    
    @IBOutlet var iconImageView: UIImageView!
    @IBOutlet var titleLabel: UILabel!
}

let nibName = UINib(nibName: DefaultTableViewCell.identifier, bundle: nil)
        setttingTableView.register(nibName, forCellReuseIdentifier: DefaultTableViewCell.identifier)

📂 その他

👩‍💻 Mission

📂 Protocol Oriented Programming in Swift