我正在设计一个UITableView使用子视图来填充它的可重用单元,我希望对此有一些看法。按照我的测试,它运作良好。但是,我不知道这是否是一个好的解决方案。设计UITableView /单元 - iOS
这种情况是:我有一个tableview与不同种类的单元格(布局)。当我设计时,它增长得很快(我的控制器代码),因为我必须注册很多单元并处理cellForRow。然后我想出了这个想法,为一个独特的可重用单元实例化不同的子视图,并使用'Presenter'来处理委托/数据源。你认为这是一个问题?这是一个好方法吗?
在此先感谢!
Ps .:抱歉有任何英文错误!
编辑:
代码为:
OrderDetailCell
class OrderDetailCell: UITableViewCell { //MARK: Outlets @IBOutlet weak var cellHeight: NSLayoutConstraint! @IBOutlet weak var viewContent: UIView! //Variables var didUpdateLayout = false internal func setupLayoutWith(view: UIView){ cellHeight.constant = view.frame.height viewContent.frame = view.frame viewContent.addSubview(view) updateConstraints() layoutIfNeeded() didUpdateLayout = true } }
OrderDetailSubview
class OrderDetailSubview: UIView { var type: OrderDetailsSubViewType? var height: CGFloat = 1 class func instanceFromNib(withType type: OrderDetailsSubViewType) -> OrderDetailSubview { let view = UINib(nibName: type.rawValue, bundle: nil).instantiate(withOwner: nil, options: nil)[0] as! OrderDetailSubview switch type { case .OrderDetailSubviewStatus: view.height = 258 case .OrderDetailSubViewItem: view.height = 129 case .OrderDetailSubViewStoreInformation: view.height = 317 case .OrderDetailSubViewEvaluation: view.height = 150 } view.updateConstraints() view.layoutIfNeeded() return view } }
OrderDetailPresenter
enum OrderDetailsSubViewType: String { case OrderDetailSubviewStatus = "OrderDetailSubviewStatus", OrderDetailSubViewItem = "OrderDetailSubViewItem", OrderDetailSubViewStoreInformation = "OrderDetailSubViewStoreInformation", OrderDetailSubViewEvaluation = "OrderDetailSubViewEvaluation" static let types = [OrderDetailSubviewStatus, OrderDetailSubViewItem, OrderDetailSubViewStoreInformation, OrderDetailSubViewEvaluation] } class OrderDetailPresenter { //Constants let numberOfSections = 4 //Variables // var order: Order? func setup(reusableCell: UITableViewCell, forRowInSection section: Int) -> OrderDetailCell { let cell = reusableCell as! OrderDetailCell for sub in cell.viewContent.subviews { sub.removeFromSuperview() } let subView = OrderDetailSubview.instanceFromNib(withType: OrderDetailsSubViewType.types[section]) cell.setupLayoutWith(view: subView) return cell } func numberOfRowsForSection(_ section: Int) -> Int { switch section { case 1: //TODO: count de offerList return 4 default: return 1 } } }
OrderDetailViewController
class OrderDetailViewController: BaseViewController { //MARK: Outlets @IBOutlet weak var tableView: UITableView! var presenter = OrderDetailPresenter() override func setupView() { setupTableView() } } extension OrderDetailViewController: UITableViewDataSource, UITableViewDelegate { internal func setupTableView() { tableView.delegate = self tableView.dataSource = self tableView.estimatedRowHeight = 600 tableView.rowHeight = UITableViewAutomaticDimension tableView.register(UINib(nibName: "OrderDetailCell", bundle: nil), forCellReuseIdentifier: "OrderDetailCell") } func numberOfSections(in tableView: UITableView) -> Int { return presenter.numberOfSections } func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int { return presenter.numberOfRowsForSection(section) } func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell { let reusableCell = tableView.dequeueReusableCell(withIdentifier: "OrderDetailCell") as! OrderDetailCell let cell = presenter.setup(reusableCell: reusableCell, forRowInSection: indexPath.section) return cell } }
*对不起,这里缩进...
完蛋了!你怎么看?
如果你已经遵循了适当的iOS编码习惯(比如'出列'单元格)并且你的代码没有错误,那么很难说你的代码不好。如果您的代码存在问题(如崩溃,逻辑错误或性能问题),请编辑您的问题以包含代码并询问具体问题。如果你想让别人查看你的代码,那么你可以试试'codereview.stackexchange.com' –
谢谢@RoboticCat,我按照建议遵循。事情是,我有多种细胞类型。所以,相反,创建很多单元格,我只创建了一个单元格,现在我正在为具有相同单元格的每行实例化子视图,并更新布局。运作良好,我只是想要一些意见。也感谢codereview建议..从来没有听说过。我会尽力! – Gehlen