protocol BasePresenterProtocol : class {} protocol DashboardPresenterProtocol : BasePresenterProtocol {} final class DashboardPresenter { weak var view: DashboardPresenterProtocol? init() { self.view = DashboardViewController() } func test() { print("Hello") } } extension DashboardPresenter: DashboardViewProtocol { } protocol BaseViewProtocol : class { weak var view: BasePresenterProtocol? { get set } } protocol DashboardViewProtocol : BaseViewProtocol { } class DashboardViewController { } extension DashboardViewController: DashboardPresenterProtocol { }
extension DashboardPresenter: DashboardViewProtocol { }
那,DashboardPresenter没有确认协议DashboardViewProtocol,但我已经声明了弱var视图:DashboardPresenterProtocol?在DashboardPresenter中.虽然我已经宣布了
解决方法
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