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Swift语言IOS8开发战记9.Data Model
上一话中实现了两个控制器间的传值,最终效果如图:
这是我们的主页面:
在ViewController中我们主页显示的内容是放到不同的数组中的:
var restaurantNames = ["cg1","cg2","cg3","cg4","cg5","cg6","cg7","cg8","cg9","cg10","cg11"] var restaurantImages = ["128.png","129.png","130.png","131.png","132.png","133.png","134.png","135.png","136.png","137.png","138.png","139.png","140.png"]
今天我们想要把主页面中的信息进行整合,反映到跳转页面中,这就要应用到程序中的Model。通过观察,我们每一行所展示的内容,格式上都是一样的,有图片有标题,现在我们把这个模型单独分离出来。新建一个数据模型,也就是一个cocoa touch class,命名为Rest,代码如下:
import UIKit class Rest: NSObject { var name: String = "" var image: String = "" var location: String = "" var type: String = "" var isVisit: Bool = false init(name: String,image: String,location: String,type: String,isVisit: Bool){ self.name = name self.image = image self.location = location self.type = type self.isVisit = isVisit } }Rest就是我们信息展示的结构,现在新建一个类DataArray,把初始化的信息放到其中,代码如下:
import UIKit class DataArray: NSObject { var tempArray = [Rest]() //临时变量 var dataArray:[Rest] { get { return tempArray } } override init(){ tempArray = [ Rest(name: "cg1", image: "128.png", location: "xd1", type: "Cafe", isVisit: false), Rest(name: "cg2", image: "129.png", location: "xd2", type: "Cafe", isVisit: false), Rest(name: "cg3", image: "130.png", location: "xd3", type: "Tea", isVisit: false), Rest(name: "cg4", image: "131.png", location: "xd4", type: "Cafe", isVisit: false), Rest(name: "cg5", image: "132.png", location: "xd5", type: "Tea", isVisit: false), Rest(name: "cg6", image: "133.png", location: "xd6", type: "Cafe", isVisit: false), Rest(name: "cg7", image: "134.png", location: "xd7", type: "Cafe", isVisit: false), Rest(name: "cg8", image: "135.png", location: "xd8", type: "Cafe", isVisit: false), Rest(name: "cg9", image: "136.png", location: "xd9", type: "Cafe", isVisit: false), Rest(name: "cg10", image: "137.png", location: "xd10", type: "Cafe", isVisit: false), Rest(name: "cg11", image: "138.png", location: "xd11", type: "Tea", isVisit: false), ] } }
ViewController中的相关信息就没用了,我们可以删除掉,修改后的ViewController代码如下:
import UIKit class ViewController: UIViewController,UITableViewDataSource,UITableViewDelegate { var restArray = DataArray().dataArray var tableView = UITableView() override func viewDidLoad() { super.viewDidLoad() self.navigationItem.title = "cgGo" tableView = UITableView(frame: CGRectMake(0, 0, 320, 568), style: UITableViewStyle.Plain)//定义一个tableview self.view.addSubview(tableView)//不添加看不到 tableView.dataSource = self tableView.delegate = self //之前是在storyboard中设置的,现在改为手动设置 tableView.registerClass(CustomTableViewCell.self, forCellReuseIdentifier: "Cell") // Do any additional setup after loading the view, typically from a nib. } func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int { return restArray.count } func numberOfSectionsInTableView(tableView: UITableView) -> Int { return 1; } func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell { let identiString = "Cell" //代码复用 var cell = tableView.dequeueReusableCellWithIdentifier(identiString,forIndexPath : indexPath) as? CustomTableViewCell if cell == nil { cell = UITableViewCell(style: UITableViewCellStyle.Default, reuseIdentifier: identiString) as? CustomTableViewCell } var rest = restArray[indexPath.row] var restName = rest.name var restLocation = rest.location var imageName = rest.image var restType = rest.type cell?.initWith(imageName, restName: restName, restLocation: restLocation, restType: restType) if rest.isVisit{ cell?.accessoryType = .Checkmark } else { cell?.accessoryType = .None } return cell! } override func prefersStatusBarHidden() -> Bool { //隐藏上边栏中的电量、信号等信息 return true } func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) { tableView.deselectRowAtIndexPath(indexPath, animated: true) let callActionHandler = {(action:UIAlertAction!) -> Void in let alertMessage = UIAlertController(title: "Service is unavalable", message: "You can choice another rest" , preferredStyle: UIAlertControllerStyle.Alert) alertMessage.addAction(UIAlertAction(title: "ok", style: UIAlertActionStyle.Default, handler: nil)) self.presentViewController(alertMessage, animated: true, completion: nil) } let option = UIAlertController(title: nil, message: "What are you goning to do?", preferredStyle: UIAlertControllerStyle.ActionSheet) //callAction let callAction = UIAlertAction(title: "Call"+"180-123-\(indexPath.row)", style: UIAlertActionStyle.Default, handler: callActionHandler)//自定义的callActionHandler来响应点击的事件 //markAction let markAction = UIAlertAction(title: "I'm here", style: UIAlertActionStyle.Default, handler: { (action:UIAlertAction!) ->Void in let cell = tableView.cellForRowAtIndexPath(indexPath) cell?.accessoryType = UITableViewCellAccessoryType.Checkmark //对号 self.restArray[indexPath.row].isVisit = true }) option.addAction(markAction) //cancelAction let cancelAction = UIAlertAction(title: "ok", style: UIAlertActionStyle.Cancel, handler: nil) // self.presentViewController(option, animated: true, completion: nil) let detail = DetailViewController() self.navigationController?.pushViewController(detail, animated: true) var image = restArray[indexPath.row].image detail.imageName = image option.addAction(cancelAction) option.addAction(callAction) } func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat { return 80 } func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) { if editingStyle == .Delete { self.restArray.removeAtIndex(indexPath.row) } self.tableView.deleteRowsAtIndexPaths([indexPath], withRowAnimation: UITableViewRowAnimation.Left) } func tableView(tableView: UITableView, editActionsForRowAtIndexPath indexPath: NSIndexPath) -> [AnyObject]? { let shareAction = UITableViewRowAction(style: .Default, title: "Share", handler: { (action: UITableViewRowAction!, indexPath: NSIndexPath!) -> Void in let menu = UIAlertController(title: "Share Action", message: nil, preferredStyle: .ActionSheet) let csdnAction = UIAlertAction(title: "csdn", style: .Default, handler: nil) menu.addAction(csdnAction) let cancelAction = UIAlertAction(title:"Cancel", style: .Cancel, handler: nil) menu.addAction(cancelAction) self.presentViewController(menu, animated: true, completion: nil) }) let deleteAction = UITableViewRowAction(style: .Default, title: "Delete", handler: { (action: UITableViewRowAction!,indexPath: NSIndexPath!) -> Void in }) return [deleteAction, shareAction] } }
可以看到之前单个的数组被名为restArray的model取代了,在定义cel的代理方法中引用restArray实例,显示效果如图:
Swift语言IOS8开发战记9.Data Model
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