Created
June 6, 2020 11:06
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typealias BehaviorClosure = (_ viewController: UIViewController) -> () | |
enum ViewControllerLifecycle : CaseIterable { | |
typealias AllCases = [ViewControllerLifecycle] | |
case afterLoading(BehaviorClosure?) | |
case afterAppearing(BehaviorClosure?) | |
case beforeAppearing(BehaviorClosure?) | |
case beforeDisappearing(BehaviorClosure?) | |
case afterDisappearing(BehaviorClosure?) | |
case beforeLayingOutSubviews(BehaviorClosure?) | |
case afterLayingOutSubviews(BehaviorClosure?) | |
static var allCases: [ViewControllerLifecycle] { | |
return [afterLoading(nil), | |
beforeAppearing(nil), | |
beforeDisappearing(nil), | |
beforeLayingOutSubviews(nil), | |
afterLayingOutSubviews(nil)] | |
} | |
} | |
func createAnonimousBehavior(with lifecycle: [ViewControllerLifecycle]) -> ViewControllerLifecycleBehavior { | |
class AnonimousBehavior: ViewControllerLifecycleBehavior { | |
private var lifeCycle: [ViewControllerLifecycle] | |
init(lifeCycle:[ViewControllerLifecycle]) { | |
self.lifeCycle = lifeCycle | |
} | |
func afterLoading(_ viewController: UIViewController) { | |
lifeCycle.forEach { | |
guard case .afterLoading(let closure) = $0 else { return } | |
closure?(viewController) | |
} | |
} | |
func afterAppearing(_ viewController: UIViewController) { | |
lifeCycle.forEach { | |
guard case .afterAppearing(let closure) = $0 else { return } | |
closure?(viewController) | |
} | |
} | |
func beforeAppearing(_ viewController: UIViewController) { | |
lifeCycle.forEach { | |
guard case .beforeAppearing(let closure) = $0 else { return } | |
closure?(viewController) | |
} | |
} | |
func beforeDisappearing(_ viewController: UIViewController) { | |
lifeCycle.forEach { | |
guard case .beforeDisappearing(let closure) = $0 else { return } | |
closure?(viewController) | |
} | |
} | |
func afterDisappearing(_ viewController: UIViewController) { | |
lifeCycle.forEach { | |
guard case .afterDisappearing(let closure) = $0 else { return } | |
closure?(viewController) | |
} | |
} | |
func beforeLayingOutSubviews(_ viewController: UIViewController) { | |
lifeCycle.forEach { | |
guard case .beforeLayingOutSubviews(let closure) = $0 else { return } | |
closure?(viewController) | |
} | |
} | |
func afterLayingOutSubviews(_ viewController: UIViewController) { | |
lifeCycle.forEach { | |
guard case .afterLayingOutSubviews(let closure) = $0 else { return } | |
closure?(viewController) | |
} | |
} | |
} | |
let behavior = AnonimousBehavior(lifeCycle: ViewControllerLifecycle.allCases) | |
return behavior | |
} |
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