UITableView类别数组钻取 – Swift iOS

我有3个视图控制器：FirstVC创build9个项目，SecondVC是一个tableView按类别name / idsorting这些项目，并显示两者，ThirdVC是一个tableView提取和显示该类别内的项目。 我试图实现一个tableView下钻做到这一点，但第二VC和thirdVC让我难倒了。

这是我正在寻找的结果：

FirstVC

-9 objects : 3 Red objects Cherry, Tomato, Ruby 3 Green objects Cucumber, Broccoli, Emerald 3 Blue objects Blueberries, Sky, Sapphire 1.create all 9 objects 2.the object color and/or id determine which category each object belongs in the secondVC //There is no need to display anything on this scene 

SecondVC

 -3 cells: -Red -Green -Blue //this is where I'm stumped 1.tableView that sorts all 9 objects based on their color and/or id 2.right now all 9 cells are displaying but I would only like 3 cells to show only each individual category name and id 

ThirdVC

 -3 more cells Cherry Tomato Ruby 1.If you pressed the Red category cell in the secondVC then these 3 cells above would show inside the thirdVC. Same concept for the Blue and Green cells 

数据模型对象

 class ColorClass: NSObject{ var colorCategoryName: String? var colorID: String? var realWorldObject: String? } 

我的第一个视图控制器从这个数据模型实例化9个不同的对象

 import UIKit class FirstViewController: UIViewController { var firstColorArray = [ColorClass]() override func viewDidLoad() { super.viewDidLoad() let redColor0 = ColorClass() redColor0.colorCategoryName = "red" redColor0.colorID = "0000" redColor0.realWorldObject = "Cherry" self.firstColorArray.append(redColor0) let redColor1 = ColorClass() redColor1.colorCategoryName = "red" redColor1.colorID = "0000" redColor1.realWorldObject = "Tomato" self.firstColorArray.append(redColor1) let redColor2 = ColorClass() redColor2.colorCategoryName = "red" redColor2.colorID = "0000" redColor2.realWorldObject = "Ruby" self.firstColorArray.append(redColor2) let greenColor0 = ColorClass() greenColor0.colorCategoryName = "green" greenColor0.colorID = "1000" greenColor0.realWorldObject = "Cucumber" self.firstColorArray.append(greenColor0) let greenColor1 = ColorClass() greenColor1.colorCategoryName = "green" greenColor1.colorID = "1000" greenColor1.realWorldObject = "Broccoli" self.firstColorArray.append(greenColor1) let greenColor2 = ColorClass() greenColor2.colorCategoryName = "green" greenColor2.colorID = "1000" greenColor2.realWorldObject = "Emerald" self.firstColorArray.append(greenColor2) let blueColor0 = ColorClass() blueColor0.colorCategoryName = "blue" blueColor0.colorID = "2000" blueColor0.realWorldObject = "Blueberries" self.firstColorArray.append(blueColor0) let blueColor1 = ColorClass() blueColor1.colorCategoryName = "blue" blueColor1.colorID = "2000" blueColor1.realWorldObject = "Sky" self.firstColorArray.append(blueColor1) let blueColor2 = ColorClass() blueColor2.colorCategoryName = "blue" blueColor2.colorID = "2000" blueColor2.realWorldObject = "Sapphire" self.firstColorArray.append(blueColor2) } override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) { if segue.identifier == "segueToSecondVC"{ let secondVC = segue.destinationViewController as! SecondViewController secondVC.colorCategoryNameArray = self.firstColorArray } } } 

我的第二个VC分类的对象

 import UIKit class SecondViewController: UIViewController, UITableViewDataSource, UITableViewDelegate { @IBOutlet weak var tableView: UITableView! var colorCategoryNameArray = [ColorClass]() override func viewDidLoad() { super.viewDidLoad() } func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int { return self.colorCategoryNameArray.count } func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell { let cell = tableView.dequeueReusableCellWithIdentifier("colorCategoryNameCell", forIndexPath: indexPath) let rowIndex = self.colorCategoryNameArray[indexPath.row] cell.textLabel?.text = rowIndex.colorCategoryName cell.detailTextLabel?.text = rowIndex.colorID return cell } override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) { let cell = sender as! UITableViewCell let selectedRow = tableView.indexPathForCell(cell)?.row let thirdTableVC = segue.destinationViewController as! ThirdViewController thirdTableVC.realWorldObjectArray = [colorCategoryNameArray[selectedRow!]] } } 

我的ThirdVC显示每个类别内的3个对象

 import UIKit class ThirdViewController: UIViewController, UITableViewDataSource, UITableViewDelegate { @IBOutlet weak var tableView: UITableView! var realWorldObjectArray = [ColorClass]() override func viewDidLoad() { super.viewDidLoad() } func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int { return self.realWorldObjectArray.count } func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell { let cell = tableView.dequeueReusableCellWithIdentifier("realWordObjectCell", forIndexPath: indexPath) let rowIndex = self.realWorldObjectArray[indexPath.row] cell.textLabel?.text = rowIndex.realWorldObject return cell } }