{"id":1335,"date":"2014-07-18T11:00:57","date_gmt":"2014-07-18T15:00:57","guid":{"rendered":"http:\/\/tim.cstj.qc.ca\/cours\/xcode\/wp\/?page_id=1335"},"modified":"2014-07-18T11:00:57","modified_gmt":"2014-07-18T15:00:57","slug":"les-classes-sous-swift-poo","status":"publish","type":"page","link":"https:\/\/ve2cuy.com\/xcode\/les-classes-sous-swift-poo\/","title":{"rendered":"Les Classes sous Swift – POO"},"content":{"rendered":"

Note: Document en cours de r\u00e9daction<\/span><\/p>\n

D\u00e9finition<\/h1>\n

…<\/p>\n

Classe de base<\/h1>\n

 
\nAction – Construisons la\u00a0classe ‘Personnage’ (dans le contr\u00f4leur de la sc\u00e8ne principale)
\n <\/p>\n

struct TrackedString {\n    private(set) var numberOfEdits = 0\n    var value: String = \"\" {\n    didSet {\n        numberOfEdits++\n    }\n    }\n}<\/pre>\n
 <\/p>\n
\/\/  Introduction aux classes sous swift\nimport UIKit\nclass ViewController: UIViewController {\n    class Personnage {  \/\/ Par convention, en swift, le nom des types commencent par une lettre majuscule.\n        var nom:String = \"\"\n        var image:UIImage = UIImage()\n        var force:Int = 0\n        var compagnons = [String]()\n        func description() -> String {\n            return  \"================================\\n\" +\n                    \"Personnage: \\(nom)\\n\" +\n                    \"force: \\(force)\\n\"    +\n                    \"--------------------------------\\n\" +\n                    \"Compagnons: \\n\\n\"     +\n                    \"\\(compagnons)\\n\"      +\n                    \"================================\\n\"\n        }  \/\/ description\n    }  \/\/ Personnage\n     \/\/ Point d'entr\u00e9e de l'application\n    override func viewDidLoad() {\n        super.viewDidLoad()\n        var fred = Personnage()\n        fred.nom = \"Fred Cailloux\"\n        fred.force = 99\n        println( \"Description du personnage fred:\\n\\( fred.description() )\" )\n    } \/\/ viewDidLoad\n}  \/\/ ViewController<\/pre>\n
Console:<\/p>\n
Description du personnage fred: <\/b>================================ <\/b>Personnage: Fred Cailloux <\/b>force: 99 <\/b>——————————– <\/b>Compagnons:\u00a0<\/b> []<\/b> ================================<\/b><\/p><\/blockquote>\n
\n
<\/h1>\n
Classe avec une m\u00e9thode init()<\/h1>\n
 <\/p>\n
\/\/  Introduction aux classes sous swift\nimport UIKit\nclass ViewController: UIViewController {\n    class Personnage {\n        var nom:String\n        var force:Int\n        var image:UIImage\n        var compagnons:[String]\n        init(nom:String, force:Int) {\n           self.nom = nom  \/\/ self.nom permet de distinguer la propri\u00e9t\u00e9 du param\u00e8tre\n           self.force = force\n           self.image = UIImage()\n           self.compagnons = [String]()\n        } \/\/ init\n        func description() -> String {\n            return  \"================================\\n\" +\n                    \"Personnage: \\(nom)\\n\" +\n                    \"force: \\(force)\\n\"    +\n                    \"--------------------------------\\n\" +\n                    \"Compagnons: \\n\\n\"     +\n                    \"\\(compagnons)\\n\"      +\n                    \"================================\\n\"\n        }  \/\/ description\n    }  \/\/ Personnage\n     \/\/ Point d'entr\u00e9e de l'application\n    override func viewDidLoad() {\n        super.viewDidLoad()\n        var perso = Personnage(nom:\"Tor LeBoss\", force:314)\n         println( \"Description du personnage:\\n\\( perso.description() )\" )\n    } \/\/ viewDidLoad\n}  \/\/ ViewController<\/pre>\n
Console:<\/p>\n
Description du personnage: <\/b>================================ <\/b>Personnage: Tor LeBoss <\/b>force: 314 <\/b>——————————– <\/b>Compagnons:\u00a0<\/b> [] <\/b>================================<\/b><\/p><\/blockquote>\n
\n
<\/h1>\n
Organisation des classes dans des fichiers<\/h1>\n
Action – Ajouter un nouveau groupe nomm\u00e9 ‘Mes classes’ au projet Atl+Cmd+N. Action – Ajouter un nouveau fichier de type ‘Swift file’ au projet Cmd+N \"intro-classe-01\" \"intro-classe-02\" \u00a0 \"intro-classe-03\" Action – D\u00e9placer la classe Personnage du contr\u00f4leur de la sc\u00e8ne vers le fichier Personnage.swift Note: Xcode ne va pas reconnaitre la classe de type UIImage. \u00a0Son prototype est d\u00e9finit dans UIKit. \u00a0Il suffit d’ajouter \u00ab\u00a0‘import UIKit\u00a0\u00bb au d\u00e9but du fichier pour corriger le probl\u00e8me. \u00a0 \"Intro-Classe-04\" Contenu du fichier ‘Personnage.swift’<\/p>\n
\/\/  Personnage.swift\nimport Foundation\nimport UIKit\nclass Personnage {\n    var nom:String\n    var force:Int\n    var image:UIImage\n    var compagnons:[String]\n    init(nom:String, force:Int) {\n        self.nom = nom  \/\/ self.nom permet de distinguer la propri\u00e9t\u00e9 du param\u00e8tre\n        self.force = force\n        self.image = UIImage()\n        self.compagnons = [String]()\n    } \/\/ init\n    func description() -> String {\n        return  \"================================\\n\" +\n            \"Personnage: \\(nom)\\n\" +\n            \"force: \\(force)\\n\"    +\n            \"--------------------------------\\n\" +\n            \"Compagnons: \\n\\n\"     +\n            \"\\(compagnons)\\n\"      +\n            \"================================\\n\"\n    }  \/\/ description\n}  \/\/ Personnage<\/pre>\n
Faisons les modifications suivantes au contr\u00f4leur :<\/p>\n
    override func viewDidLoad() {\n        super.viewDidLoad()\n        var perso = Personnage(nom:\"Tor LeBoss\", force:314)\n        let nomPerso = perso.nom\n        println( \"Le nom du personnage est \\(nomPerso)\")\n    } \/\/ viewDidLoad<\/pre>\n
Testons l’application<\/p>\n","protected":false},"excerpt":{"rendered":"
Note: Document en cours de r\u00e9daction D\u00e9finition … Classe de base   Action – Construisons la\u00a0classe ‘Personnage’ (dans le contr\u00f4leur de la sc\u00e8ne principale)   struct TrackedString { private(set) var numberOfEdits = 0 var value: String = \u00ab\u00a0\u00a0\u00bb { didSet { numberOfEdits++ } } }   \/\/ Introduction aux classes sous swift import UIKit class […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1335","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/ve2cuy.com\/xcode\/wp-json\/wp\/v2\/pages\/1335","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ve2cuy.com\/xcode\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/ve2cuy.com\/xcode\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/ve2cuy.com\/xcode\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ve2cuy.com\/xcode\/wp-json\/wp\/v2\/comments?post=1335"}],"version-history":[{"count":0,"href":"https:\/\/ve2cuy.com\/xcode\/wp-json\/wp\/v2\/pages\/1335\/revisions"}],"wp:attachment":[{"href":"https:\/\/ve2cuy.com\/xcode\/wp-json\/wp\/v2\/media?parent=1335"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}