{"id":531,"date":"2022-05-05T22:54:21","date_gmt":"2022-05-05T13:54:21","guid":{"rendered":"https:\/\/daymore.com\/?p=531"},"modified":"2022-05-19T13:47:36","modified_gmt":"2022-05-19T04:47:36","slug":"mvvm-combine-%ea%b0%84%eb%8b%a8-%ec%98%88%ec%a0%9c","status":"publish","type":"post","link":"https:\/\/blog.daymore.com\/?p=531","title":{"rendered":"MVVM + Combine \uac04\ub2e8 \uc608\uc81c"},"content":{"rendered":"\n<p><a href=\"https:\/\/daymore.com\/?p=479\" target=\"_blank\" rel=\"noreferrer noopener\">MVVM + RxSwift \uc774\ud574\ud558\uae30 \uc26c\uc6b4 \uc608\uc81c<\/a><br><a href=\"https:\/\/daymore.com\/?p=479\" target=\"_blank\" rel=\"noreferrer noopener\">MVVM + KVO \uc774\ud574\ud558\uae30 \uc26c\uc6b4 \uc608\uc81c<\/a><\/p>\n\n\n\n<p>\uc704 \uc608\uc81c\uc640 \ub3d9\uc77c\ud55c \uc544\uc8fc \uac04\ub2e8\ud55c mvvm + combine \uc608\uc81c\uc774\ub2e4.<br>\uc26c\uc6b4 \uc608\uc81c\ubd80\ud130 \uc774\ud574\ud558\uba74 \uc65c \uc0ac\uc6a9\ud558\ub294\uc9c0\ub97c \uc54c\uace0 \uc65c \uc0ac\uc6a9\ud558\ub294\uc9c0\ub97c \uc54c\uba74 <br>\ucf54\ub4dc\ub97c \ubd84\ub9ac\ud558\uace0 \uc720\uc9c0\ubcf4\uc218\ud558\uae30 \uc26c\uc6b4 \ucf54\ub4dc\ub97c \uc791\uc131\ud558\ub824\uace0 \ub178\ub825\ud558\uace0 \uc880 \ub354 \ubc1c\uc804\ub41c \ubc29\ud5a5\uc73c\ub85c&#8230;<\/p>\n\n\n\n<p>View \uc5d0\uc11c\ub294 viewModel\uc758 label \uc744 \uad6c\ub3c5\ud558\uc5ec \uac31\uc2e0\uc774 \ud544\uc694\ud55c \uc2dc\uc810\uc5d0\uc11c \ubdf0\uc758 label\uc744 \uac31\uc2e0\ud55c\ub2e4.<br>ViewModel \uc5d0\uc11c\ub294 View\uc758 label \uac31\uc2e0\uc744 \uc704\ud574 \ud544\uc694\ud55c \uc791\uc5c5 \uc774\ud6c4 \ubcc0\uacbd \uc0ac\ud56d\uc744 \uc800\uc7a5\ud558\uc5ec \uc54c\ub9b0\ub2e4.<\/p>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ ViewController\nclass ViewController: UIViewController {\n    override func viewDidLoad() {\n        super.viewDidLoad()\n        \/\/ Do any additional setup after loading the view.\n        \n        if let v: View = UIView.loadFromNib() {\n            v.add(self.view)\n        }\n    }\n}<\/pre>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ View\nclass View: UIView {\n    @IBOutlet var label: UILabel!\n    \n    private let viewModel = ViewModel()\n    private var cancellables = Set&lt;AnyCancellable>()\n    \n    override init(frame: CGRect) {\n        super.init(frame: frame)\n    }\n\n    required init?(coder aDecoder: NSCoder) {\n        super.init(coder: aDecoder)\n    }\n    \n    override func awakeFromNib() {\n        super.awakeFromNib()\n                \n        \/\/ \uc2a4\ucf00\uc974\ub7ec main\n        viewModel.$label.receive(on: DispatchQueue.main).sink { [weak self] val in\n            guard let self = self else { return }\n            self.label.text = val\n        }.store(in: &amp;cancellables)\n        \n        viewModel.loadLabel()\n    }\n    \n    func add(_ superView: UIView) {\n        superView.addSubview(self)\n        self.translatesAutoresizingMaskIntoConstraints = false\n        \n        var constraints = [NSLayoutConstraint]()\n        constraints.append(superView.topAnchor.constraint(equalTo: self.topAnchor))\n        constraints.append(superView.leadingAnchor.constraint(equalTo: self.leadingAnchor))\n        constraints.append(superView.trailingAnchor.constraint(equalTo: self.trailingAnchor))\n        constraints.append(superView.bottomAnchor.constraint(equalTo: self.bottomAnchor))\n        NSLayoutConstraint.activate(constraints)\n    }\n}\n\nextension UIView {\n    class func loadFromNib&lt;T>() -> T? {\n        let identifier = String(describing: T.self)\n        let view = Bundle.main.loadNibNamed(identifier, owner: self, options: nil)?.first\n        return view as? T\n    }\n}<\/pre>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ Model\nstruct Model {\n    var label: String = \"model\"\n}<\/pre>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">\/\/ ViewModel\nclass ViewModel {\n    private var m = Model()\n    @Published var label = \"init\"\n\n    init() {\n    }\n    \n    func changed() {\n        self.label = self.m.label\n    }\n    \n    func loadLabel() {\n        DispatchQueue.global().asyncAfter(deadline: .now()+2) {\n            self.m.label = \"value from server or app db\"\n            self.changed()\n        }\n    }\n}<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>MVVM + RxSwift \uc774\ud574\ud558\uae30 \uc26c\uc6b4 \uc608\uc81cMVVM + KVO \uc774\ud574\ud558\uae30 \uc26c\uc6b4 \uc608\uc81c \uc704 \uc608\uc81c\uc640 \ub3d9\uc77c\ud55c \uc544\uc8fc \uac04\ub2e8\ud55c mvvm + combine \uc608\uc81c\uc774\ub2e4.\uc26c\uc6b4 \uc608\uc81c\ubd80\ud130 \uc774\ud574\ud558\uba74 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[58,23],"tags":[153,51,35,17],"class_list":["post-531","post","type-post","status-publish","format-standard","hentry","category-ios","category-swift","tag-combine","tag-ios","tag-mvvm","tag-swift"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - 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