如何在TableView中設置新對象，swift？

Question

我的任務是做類似MasterDetailApplication，當我按下按鈕（firstViewController）當前日期應保存在我的tableView（secondViewController）。當我這樣做時，新的日期應該高於最後一個日期。 MasterDetailApplication這樣的作品是我想要的，但有相同的tableVieController按鈕。我想我應該使用atIndex : 0，但我不知道如何使用它。

Parameters.swift: 
import UIKit 


var param: Parameters = Parameters() 



struct data{ 
    var timer = NSString() 
} 


class Parameters: NSObject { 

    var datas = [data]() 

    func passingData(timer: NSString) 
    { 
     datas.append(data(timer: timer)) 
    } 
} 


ViewController.swift 
import UIKit 

class ViewController: UIViewController { 

    var counter = 0 
    var timer = NSTimer() 
    @IBOutlet weak var counterLabel: UILabel! 


    override func viewDidLoad() { 
     super.viewDidLoad() 

     counterLabel.text = String(counter) 
     timer = NSTimer.scheduledTimerWithTimeInterval(1,target:self, selector: ("update"),userInfo: nil, repeats :true) 
    } 

    override func didReceiveMemoryWarning() { 
     super.didReceiveMemoryWarning() 
     // Dispose of any resources that can be recreated. 
    } 

    func update(){ 
     counterLabel.text = String(++counter) 
     if counter == 50 { 
      timer.invalidate() 
     } 
    } 


    @IBAction func pressedButton(sender: UIButton) { 
     param.passingData(counterLabel.text!) 
    } 

} 


TableViewController.swift: 

import UIKit 


class TableViewController: UITableViewController, UITableViewDataSource, UITableViewDelegate{ 

    var data = NSMutableArray() 

    override func viewDidLoad() { 
     super.viewDidLoad() 

    } 
/* 
    func insertNewObject(sender: AnyObject) { 
     data.insertObject(NSDate(), atIndex: 0) 
     let indexPath = NSIndexPath(forRow: 0, inSection: 0) 
     self.tableView.insertRowsAtIndexPaths([indexPath], withRowAnimation: .Automatic) 
    } 
    */ 

    override func didReceiveMemoryWarning() { 
     super.didReceiveMemoryWarning() 
     // Dispose of any resources that can be recreated. 
    } 

    override func numberOfSectionsInTableView(tableView: UITableView) -> Int { 
     return 1 
    } 

    override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int { 
     return param.datas.count 
    } 


    override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell { 
      let cell = tableView.dequeueReusableCellWithIdentifier("default", forIndexPath: indexPath) as UITableViewCell 

    let date = NSDateFormatter() 
    date.dateFormat = "yyyy-MM-dd\nhh:mm:ss" 
    cell.detailTextLabel?.text = param.datas[indexPath.row].timer 
    cell.textLabel.text = "\(date.stringFromDate(NSDate()))" 
    return cell 

    } 

} 

Answer 1

一下添加到viewDidLoad中

let addButton = UIBarButtonItem(barButtonSystemItem: .Add, target: self, action: "insertNewObject:") 

添加到您的MasterViewController

func insertNewObject(sender: AnyObject) { 
    objects.insertObject(NSDate(), atIndex: 0) 
    let indexPath = NSIndexPath(forRow: 0, inSection: 0) 
    self.tableView.insertRowsAtIndexPaths([indexPath], withRowAnimation: .Automatic) 
} 

這是鍋爐板代碼editing-

override func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) { 
     if editingStyle == .Delete { 
      objects.removeObjectAtIndex(indexPath.row) 
      tableView.deleteRowsAtIndexPaths([indexPath], withRowAnimation: .Fade) 
     } else if editingStyle == .Insert { 
      // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view. 
     } 
    } 

這就是你當你創建defa時得到在Xcode中使用ult master-view應用程序。如果您希望將此日期傳遞給SecondViewController，則需要在PrepareforSegue函數中發送此日期。你將這個日期保存在secondviewcontroller的ivar中。然後，如果添加了這一切你掌握它可以工作，但這時如果你需要這個日期SecondViewController一旦你有，你可以創建一個這樣

override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell { 
     let cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as UITableViewCell 

     let object = objects[indexPath.row] as NSDate 
     cell.textLabel.text = object.description 
     return cell 
    } 

細胞。一旦用戶點擊Master中的一行，將日期保存爲您的ivar（SecondViewController）。使用prepareForSegue將日期提供給DestinationViewController。