Swift Delegate使用

我们以UItableViewcell里按钮点点击事件作为例子

在cell里声明一个delegate

 

weak var delegate:MZAccumulateCellDelegate?

需要实现的方法

 

 

protocol MZAccumulateCellDelegate:NSObjectProtocol { func buyButtonDidClick(sender:UIButton,model:contentModel) -> Void }

给按钮添加点击事件

 

 

buyBtn?.addTarget(self, action: #selector(clickBuyBtn(_:)), for: .touchUpInside)

传递delegate

 

 

func clickBuyBtn(_ sender:UIButton) -> Void { delegate?.buyButtonDidClick(sender: sender, model: model) }

在VC里准守代理

 

 

MZAccumulateCellDelegate

 

 

cell?.delegate = self

实现方法

 

 

func buyButtonDidClick(sender: UIButton, model: contentModel) { if !MZOAuthManager.sharedInstance.isAuthorized() { self.gotoLogin() return; } let buyVC = MZBuyGoldViewController.init() buyVC.productId = model.id buyVC.isRegular = true self.navigationController?.pushViewController(buyVC, animated: true) }