Models: UserModel.swift

Views: UserInfoCell.swift

Controllers: RootViewController.swift, DetailViewController.swift

AppDelegate.swift:

import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
    var window: UIWindow?

    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: NSDictionary?

) -> Bool { self.window = UIWindow(frame: UIScreen.mainScreen().bounds) // let rootController = RootViewController(style: UITableViewStyle.Plain) let rootNav = UINavigationController(rootViewController: rootController) self.window!.rootViewController = rootNav // self.window!.backgroundColor = UIColor.whiteColor() self.window!.makeKeyAndVisible() return true } }

import Foundation

//
// @brief The model of user, using to store user datas
// @author huangyibiao
//
class UserModel : NSObject {
    var userName: String     ///< store user's name, optional
    var userID: Int          ///< store user's ID
    var phone: String?       ///< store user's telephone number
    var email: String?       ///< store user's email
    
    // designated initializer
    init(userName: String, userID: Int, phone: String?, email: String?) {
        self.userName = userName
        self.userID = userID
        self.phone = phone
        self.email = email
        
        super.init()
    }
}

import Foundation
import UIKit

//
// @brief The cell of showing user infos
// @author huangyibiao
//
class UserInfoCell : UITableViewCell {
    var userNameLabel : UILabel!
    var phoneLabel : UILabel!
    var emailLabel : UILabel!
    
    init(style: UITableViewCellStyle, reuseIdentifier: String!) {
        super.init(style: style, reuseIdentifier: reuseIdentifier)

        userNameLabel = UILabel(frame: CGRectMake(30, 0, 100, 44))
        userNameLabel.backgroundColor = UIColor.clearColor()
        userNameLabel.font = UIFont.systemFontOfSize(14)
        self.contentView.addSubview(userNameLabel)
        
        phoneLabel = UILabel(frame: CGRectMake(120, 0, 200, 20))
        phoneLabel.backgroundColor = UIColor.clearColor()
        phoneLabel.font = UIFont.systemFontOfSize(12)
        self.contentView.addSubview(phoneLabel)

        emailLabel = UILabel(frame: CGRectMake(120, 20, 200, 20))
        emailLabel.backgroundColor = UIColor.clearColor()
        emailLabel.font = UIFont.systemFontOfSize(12)
        self.contentView.addSubview(emailLabel)
    }

    func configureCell(userModel: UserModel?) {
        if let model = userModel {
            userNameLabel.text = model.userName
            phoneLabel.text = model.phone
            emailLabel.text = model.email
        }
    }
}

import Foundation
import UIKit

//
// @brief 作为窗体的rootViewControllor
// @author huangyibiao
//

class RootViewController : UITableViewController, DetailViewControllerDelegate {
    var dataSource = NSMutableArray()
    var currentIndexPath: NSIndexPath?
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        for index in 0...12 {
            let model = UserModel(userName: "name:\(index + 1)",
                userID: index, phone: "13877747982", email: "632840804@qq.com")
            dataSource.addObject(model)
        }
        
        self.title = "UITableViewDemo"
    }
    
    override func tableView(tableView: UITableView!, numberOfRowsInSection section: Int) -> Int  {
        return dataSource.count
    }
    
    override func tableView(tableView: UITableView!, cellForRowAtIndexPath indexPath: NSIndexPath!) -> UITableViewCell! {
        // can't use static?

let cellIdentifier: String = "UserInfoCellIdentifier" // may be no value, so use optional var cell: UserInfoCell?

= tableView.dequeueReusableCellWithIdentifier(cellIdentifier) as? UserInfoCell if cell == nil { // no value cell = UserInfoCell(style: UITableViewCellStyle.Default, reuseIdentifier: cellIdentifier) } let model: UserModel?

= dataSource[indexPath.row] as? UserModel cell!.configureCell(model) return cell } override func tableView(tableView: UITableView!, didSelectRowAtIndexPath indexPath: NSIndexPath!) { let detail = DetailViewController() detail.userModel = dataSource[indexPath.row] as?

UserModel detail.delegate = self currentIndexPath = indexPath self.navigationController.pushViewController(detail, animated: true) } func changeItem(forUserModel userModel: UserModel?) { var index = 0 for index = 0; index < dataSource.count; index++ { let model = dataSource[index] as UserModel if model.userID == userModel?.userID { model.phone = userModel?

.phone model.email = userModel?.email tableView.reloadRowsAtIndexPaths([currentIndexPath!], withRowAnimation: UITableViewRowAnimation.Fade) break } } } }

import Foundation
import UIKit

// this delegate needs a @objc, because @optional is only for objective-c, not for swift
@objc protocol DetailViewControllerDelegate : NSObjectProtocol {
    @optional func changeItem(forUserModel userModel: UserModel?)
}

class DetailViewController : UIViewController {
    var userModel: UserModel?
    var delegate: DetailViewControllerDelegate?
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        self.view.backgroundColor = UIColor.whiteColor()
        self.title = userModel?

.userName let button = UIButton(frame: CGRectMake(10, 200, 300, 40)) button.setTitle("change", forState:UIControlState.Normal) button.backgroundColor = UIColor.redColor() button.addTarget(self, action: "onChangeButtonClick:", forControlEvents: UIControlEvents.TouchUpInside) self.view.addSubview(button) } func onChangeButtonClick(sender: UIButton!) { if userModel { userModel!.userName = "ChangeName" // changeItem needs to add a ? to the end, before (), because // this function is optional // delegate?

表示可能没有代理。而changeItem?

表示方法可能没有实现，这样写就算没有实现也没有问题 delegate?.changeItem?

(forUserModel: userModel) self.navigationController.popViewControllerAnimated(true) } } }