Injection de Dépendance - CocoaHeads Lyon 21/09/17

Présentation par Antoine Descamps dans le cadre des CocoaHeads Lyon le 21/09/17 dans les locaux d'Amiltone

Transcript

1. 21/09/2017 Antoine Descamps
6. protocol Service { func doSomething() -> Void } extension Service { var className: String { return String(describing: type(of: self)) } func doSomething() -> Void { print("Hello "+className) } }
7. class AlphaService: Service { class var sharedInstance: AlphaService { fileprivate struct Singleton { static let instance = AlphaService() } return Singleton.instance } } class MyFirstClass { init() { } func helloWorld() { AlphaService.sharedInstance.doSomething() } } let firstClass = MyFirstClass() firstClass.helloWorld()
8. class MySecondClass { var service: AlphaService init() { service = AlphaService.sharedInstance } func helloWorld() { service.doSomething() } } let secondClass = MySecondClass() secondClass.helloWorld()
9. class MyThirdClass { var service: AlphaService init(service: AlphaService) { self.service = service } func helloWorld() { service.doSomething() } } let thirdClass = MyThirdClass(service: AlphaService.sharedInstance) thirdClass.helloWorld()
10. class BetaService: Service { init() { } } class MyFifthClass { var service: BetaService init(service: BetaService) { self.service = service } func helloWorld() { service.doSomething() } } let betaService = BetaService() let fifthClass = MyFifthClass(service: betaService) fifthClass.helloWorld()
16. Controller Service Référence Controller Service ServiceImpl Implémente Référence
18. protocol GammaService: Service { } class GammaServiceImpl: GammaService { init() { } } class GammaServiceMock: GammaService { init() { } }
19. class MySixthClass { var service: GammaService init(service: GammaService) { self.service = service } func helloWorld() { service.doSomething() } } let gammaService = GammaServiceImpl() let sixthClass = MySixthClass(service: gammaService) sixthClass.helloWorld()
21. let deltaService = DeltaService() let constructorClass = MyConstructorClass(service: deltaService) constructorClass.helloWorld() let parameterClass = MyParameterClass() parameterClass.service = deltaService parameterClass.helloWorld()
26. Assembly ViewController 1 Service A ViewController 2 Service B Service A