コンテナビューのEmbed先をコードから変更できますか？

いつもお世話になります。

containerViewを利用して、貼り付けたGIFのように見た目上は希望する動きを実現できたのですが、
アプリ起動時にすべてのViewControllerが読み込まれるのに違和感を感じています。
見た目の動きは現状のままで、segmentControlで選択したViewのViewControllerだけ読み込まれるといったように
画面遷移させたいのですが、何を利用してつくったらよいかイメージが浮かばず困っています。なにかよい方法？組み合わせはないでしょうか？

追記
現状、コードからEmbed先を変更する方向で勧めています。

swift
1import UIKit
2
3class ViewController: UIViewController {
4
5    // Mark: - Outlets/ContainerView -
6    @IBOutlet weak var containerView: UIView!
7    @IBOutlet weak var blueContainerView: UIView!
8    @IBOutlet weak var greenContainerView: UIView!
9    @IBOutlet weak var yellowContainerView: UIView!
10    var containersArray = [UIView]()
11    
12    // Mark: - Outlets/UIButton -
13    @IBOutlet weak var chengeSelectSwViewAppearanceBtn: UIButton!
14    @IBOutlet weak var changeSwSC: UISegmentedControl!
15    // Mark: - Outlets/Constraints -
16    @IBOutlet weak var selectSwViewAppear: NSLayoutConstraint!
17    @IBOutlet weak var selectSwViewDisappear: NSLayoutConstraint!
18    
19    // Mark: - LifeCycle -
20    override func viewDidLoad() {
21        super.viewDidLoad()
22        containersArray = [blueContainerView, greenContainerView, yellowContainerView]
23        containerView.bringSubview(toFront: blueContainerView)
24    }
25
26    override func didReceiveMemoryWarning() {
27        super.didReceiveMemoryWarning()
28        // Dispose of any resources that can be recreated.
29    }
30
31    // Mark: - Action/SegmentControl -
32    @IBAction func selectVcSegmentControlTapped(_ sender: UISegmentedControl) {
33        switch sender.selectedSegmentIndex {
34        case 0 : containerView.bringSubview(toFront: blueContainerView)
35        case 1 : containerView.bringSubview(toFront: greenContainerView)
36        case 2 : containerView.bringSubview(toFront: yellowContainerView)
37        default: break
38        }
39        changeApperanceOfSCView()
40    }
41    
42    // Mark: - Action/BtnTapped -
43    
44    @IBAction func chengeSelectSwViewAppearanceBtnTapped(_ sender: UIButton) {
45        changeApperanceOfSCView()
46    }
47    
48    func changeApperanceOfSCView() {
49        if selectSwViewAppear.isActive == true {
50            selectSwViewAppear.isActive = false
51            selectSwViewDisappear.isActive = true
52            chengeSelectSwViewAppearanceBtn.setTitle("▼", for: .normal)
53        } else {
54            selectSwViewDisappear.isActive = false
55            selectSwViewAppear.isActive = true
56            chengeSelectSwViewAppearanceBtn.setTitle("▲", for: .normal)
57        }
58        UIView.animate(withDuration: 0.5, animations: { self.view.layoutIfNeeded() }, completion: nil)
59    }
60    
61    // MARK: - Segue -
62    
63}

行動規範の内容に同意します

回答1件

ベストアンサー

storyboardを分割して、コード上から、既表示のViewControllerをremove、segmentedControlで選択されたViewControllerを、addSubviewするように変更。

とりあえず動くことは確認できたので解決済みに変更。

↓動きを確認したコピペコード

swift
1import UIKit
2
3class ViewController: UIViewController {
4
5    // Mark: - Outlets/ContainerView -
6    @IBOutlet weak var containerView: UIView!
7    @IBOutlet weak var blueContainerView: UIView!
8    @IBOutlet weak var greenContainerView: UIView!
9    @IBOutlet weak var yellowContainerView: UIView!
10    //var containersArray = [UIView]()
11    
12    // Mark: - Outlets/UIButton -
13    @IBOutlet weak var chengeSelectSwViewAppearanceBtn: UIButton!
14    @IBOutlet weak var changeSwSC: UISegmentedControl!
15    // Mark: - Outlets/Constraints -
16    @IBOutlet weak var selectSwViewAppear: NSLayoutConstraint!
17    @IBOutlet weak var selectSwViewDisappear: NSLayoutConstraint!
18    
19    //var presentContainerView: Int = 0
20    
21    var blueController: BlueViewController?
22    var greenController: GreenViewController?
23    var yellowController: YellowViewController?
24    
25    
26    // Mark: - LifeCycle -
27    override func viewDidLoad() {
28        super.viewDidLoad()
29        
30        blueController = createViewController(SCIndex: 0, containerTitle: "Blue") as? BlueViewController
31        displayContentController(content: blueController!, container: containerView)
32        
33    }
34
35    override func didReceiveMemoryWarning() {
36        super.didReceiveMemoryWarning()
37        // Dispose of any resources that can be recreated.
38    }
39    
40    func createViewController(SCIndex: Int, containerTitle: String) -> UIViewController {
41        var returnController: UIViewController?
42        switch SCIndex {
43            case 0:
44                let sb: UIStoryboard = UIStoryboard(name: "BlueViewController", bundle: nil)
45                let controller: BlueViewController =
46                    sb.instantiateInitialViewController() as! BlueViewController
47                controller.containerTitle = containerTitle
48                returnController = controller
49            case 1:
50                let sb: UIStoryboard = UIStoryboard(name: "GreenViewController", bundle: nil)
51                let controller: GreenViewController =
52                    sb.instantiateInitialViewController() as! GreenViewController
53                controller.containerTitle = containerTitle
54                returnController = controller
55            case 2:
56                let sb: UIStoryboard = UIStoryboard(name: "YellowViewController", bundle: nil)
57                let controller: YellowViewController =
58                    sb.instantiateInitialViewController() as! YellowViewController
59                controller.containerTitle = containerTitle
60                returnController = controller
61            default: break
62        }
63        return returnController!
64    }
65    
66    
67    func displayContentController(content: UIViewController, container: UIView) {
68        addChildViewController(content)
69        content.view.frame = container.bounds
70        container.addSubview(content.view)
71        content.didMove(toParentViewController: self)
72    }
73    
74    func hideContentController(content: UIViewController) {
75        content.willMove(toParentViewController: self)
76        content.view.removeFromSuperview()
77        content.removeFromParentViewController()
78    }
79    
80    /*
81    func hideContentController() {
82        var content: UIViewController?
83        switch presentContainerView {
84        case 0: content = blueController!
85        case 1: content = greenController!
86        case 2: content = yellowController!
87        default: break
88        }
89        content?.willMove(toParentViewController: self)
90        content?.view.removeFromSuperview()
91        content?.removeFromParentViewController()
92    }
93    */
94    
95    // Mark: - Action/SegmentControl -
96    @IBAction func selectVcSegmentControlTapped(_ sender: UISegmentedControl) {
97        
98        hideContentController(content: childViewControllers.first!)
99        
100        print(childViewControllers)
101        if let topController = UIApplication.topViewController() {
102            print("topController:",topController)
103        }
104        
105        switch sender.selectedSegmentIndex {
106        case 0 : //containerView.bringSubview(toFront: blueContainerView)
107            //hideContentController()
108            blueController = createViewController(SCIndex: 0, containerTitle: "Blue") as? BlueViewController
109            displayContentController(content: blueController!, container: containerView)
110        case 1 : //containerView.bringSubview(toFront: greenContainerView)
111            //hideContentController()
112            greenController = createViewController(SCIndex: 1, containerTitle: "Green") as? GreenViewController
113            displayContentController(content: greenController!, container: containerView)
114        case 2 : //containerView.bringSubview(toFront: yellowContainerView)
115            //hideContentController()
116            yellowController = createViewController(SCIndex: 2, containerTitle: "Yellow") as? YellowViewController
117            displayContentController(content: yellowController!, container: containerView)
118        default: break
119        }
120        //presentContainerView = sender.selectedSegmentIndex
121        changeApperanceOfSCView()
122    }
123    
124    // Mark: - Action/BtnTapped -
125    
126    @IBAction func chengeSelectSwViewAppearanceBtnTapped(_ sender: UIButton) {
127        changeApperanceOfSCView()
128    }
129    
130    func changeApperanceOfSCView() {
131        if selectSwViewAppear.isActive == true {
132            selectSwViewAppear.isActive = false
133            selectSwViewDisappear.isActive = true
134            chengeSelectSwViewAppearanceBtn.setTitle("▼", for: .normal)
135        } else {
136            selectSwViewDisappear.isActive = false
137            selectSwViewAppear.isActive = true
138            chengeSelectSwViewAppearanceBtn.setTitle("▲", for: .normal)
139        }
140        UIView.animate(withDuration: 0.5, animations: { self.view.layoutIfNeeded() }, completion: nil)
141    }
142    
143    // MARK: - Segue -
144    
145}