[Swift] このUIPickerViewのサブクラスであらかじめ指定した値をセットしておくにはどうしたらよいでしょうか？

リンクのものを使ってUIPickerViewを作っています。

https://github.com/tottokotkd/PopUpPickerView
http://qiita.com/tottokotkd/items/b979d5e991b29431346c

それで、このViewを開いたときに、任意の値が選択されているようにしたいです。宜しくおねがします。

lang
1import UIKit
2class ViewController: UIViewController, PopUpPickerViewDelegate {
3    var pickerView: PopUpPickerView!
4    let array = ["test1", "test2", "test3", "test4", "test5"]
5
6    override func viewDidLoad() {
7        super.viewDidLoad()
8
9        pickerView = PopUpPickerView()
10        pickerView.delegate = self
11        if let window = UIApplication.sharedApplication().keyWindow {
12            window.addSubview(pickerView)
13        } else {
14            self.view.addSubview(pickerView)
15        }
16
17        let button = UIButton.buttonWithType(UIButtonType.ContactAdd) as UIButton
18        button.frame = CGRectMake(50, 100, 30, 30);
19        button.addTarget(self, action: "showPicker", forControlEvents: UIControlEvents.TouchDown)
20        self.view.addSubview(button)
21    }
22    func showPicker() {
23        pickerView.showPicker()
24    }
25    // for delegate
26    func numberOfComponentsInPickerView(pickerView: UIPickerView) -> Int {
27        return 3
28    }
29    func pickerView(pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
30        return array.count
31    }
32    func pickerView(pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String! {
33        return array[row]
34    }
35    func pickerView(pickerView: UIPickerView, didSelect numbers: [Int]) {
36        println(numbers)
37    }
38}

lang
1class PopUpPickerView: UIView {
2    var pickerView: UIPickerView!
3    var pickerToolbar: UIToolbar!
4    var toolbarItems: [UIBarItem]!
5    
6    var delegate: PopUpPickerViewDelegate? {
7        didSet {
8            pickerView.delegate = delegate
9        }
10    }
11    private var selectedRows: [Int]?
12    
13    // MARK: Initializer
14    override init() {
15        super.init()
16        initFunc()
17    }
18    override init(frame: CGRect) {
19        super.init(frame: frame)
20        initFunc()
21    }
22    required init(coder aDecoder: NSCoder) {
23        super.init(coder: aDecoder)
24        initFunc()
25    }
26    private func initFunc() {
27        let screenSize = UIScreen.mainScreen().bounds.size
28        self.backgroundColor = UIColor.blackColor()
29        
30        pickerToolbar = UIToolbar()
31        pickerView = UIPickerView()
32        toolbarItems = []
33        
34        pickerToolbar.translucent = true
35        pickerView.showsSelectionIndicator = true
36        pickerView.backgroundColor = UIColor.whiteColor()
37        
38        self.bounds = CGRectMake(0, 0, screenSize.width, 260)
39        self.frame = CGRectMake(0, screenSize.height, screenSize.width, 260)
40        pickerToolbar.bounds = CGRectMake(0, 0, screenSize.width, 44)
41        pickerToolbar.frame = CGRectMake(0, 0, screenSize.width, 44)
42        pickerView.bounds = CGRectMake(0, 0, screenSize.width, 216)
43        pickerView.frame = CGRectMake(0, 44, screenSize.width, 216)
44        
45        let space = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FixedSpace, target: nil, action: nil)
46        space.width = 12
47        let cancelItem = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.Cancel, target: self, action: "cancelPicker")
48        let flexSpaceItem = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FlexibleSpace, target: self, action: nil)
49        let doneButtonItem = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.Done, target: self, action: Selector("endPicker"))
50        toolbarItems! += [space, cancelItem, flexSpaceItem, doneButtonItem, space]
51        
52        pickerToolbar.setItems(toolbarItems, animated: false)
53        self.addSubview(pickerToolbar)
54        self.addSubview(pickerView)
55    }
56    func showPicker() {
57        if selectedRows == nil {
58            selectedRows = getSelectedRows()
59        }
60        let screenSize = UIScreen.mainScreen().bounds.size
61        UIView.animateWithDuration(0.2) {
62            self.frame = CGRectMake(0, screenSize.height - 260.0, screenSize.width, 260.0)
63        }
64    }
65    func cancelPicker() {
66        hidePicker()
67        restoreSelectedRows()
68        selectedRows = nil
69    }
70    func endPicker() {
71        hidePicker()
72        delegate?.pickerView?(pickerView, didSelect: getSelectedRows())
73        selectedRows = nil
74    }
75    private func hidePicker() {
76        let screenSize = UIScreen.mainScreen().bounds.size
77        UIView.animateWithDuration(0.2) {
78            self.frame = CGRectMake(0, screenSize.height, screenSize.width, 260.0)
79        }
80    }
81    private func getSelectedRows() -> [Int] {
82        var selectedRows = [Int]()
83        for i in 0..<pickerView.numberOfComponents {
84            selectedRows.append(pickerView.selectedRowInComponent(i))
85        }
86        return selectedRows
87    }
88    private func restoreSelectedRows() {
89        for i in 0..<selectedRows!.count {
90            pickerView.selectRow(selectedRows![i], inComponent: i, animated: true)
91        }
92    }
93}
94
95@objc
96protocol PopUpPickerViewDelegate: UIPickerViewDelegate {
97    optional func pickerView(pickerView: UIPickerView, didSelect numbers: [Int])
98}