SwiftでUITableViewCell内のUIViewをトグルさせる(高さを変更する)処理を実装したい

前提・実現したいこと

現在SwiftでSNSの投稿一覧の画面を実装しています。UITableViewCell内にあるUIViewの高さを動的に変更してトグルのような動きを制約のコンフリクトなしに実装したいです。

発生している問題・エラーメッセージ

過去に1度実装しています。表示は問題ないのですが、その時はトグルを広げる時に制約のコンフリクトが起きてしまい、エラーメッセージが表示されてしまいました。

自分で実装した時の処理の流れ

トグルを開く時は広げたいUIViewの中にUILabelを繰り返しaddSubviewしていく

UILabelの高さは複数行のコメントに対応するため高さが可変。高さに関する制約はなく、top,trailing、leading、bottomのAnchorConstirantの値をコードから設定。最後のUILabelのbottomの制約はトグル対象のUIViewのbottomとの距離を設定しています。
2. トグルを閉じる時はトグル対象のUIViewのsubviewを再帰的にremoveFromSuperview()して結果的に高さが0になるようにしています。
コンフリクトするのは、トグルを開閉する時だけでなくトグルを開いた状態で上にスクロールする時も制約にコンフリクトが生じます。コンフリクトの内容は縦方向の制約のコンフリクトです。

エラーメッセージ

(
    "<NSAutoresizingMaskLayoutConstraint:0x608000297890 h=-&- v=-&- UIView:0x7f9307caf0e0.midY == Wannago.ToggleButtonView:0x7f9307cae810.midY   (active)>",
    "<NSAutoresizingMaskLayoutConstraint:0x608000297840 h=-&- v=-&- UIView:0x7f9307caf0e0.height == Wannago.ToggleButtonView:0x7f9307cae810.height   (active)>",
    "<NSLayoutConstraint:0x60000028d660 UIView:0x7f9304cd97c0.height == 20   (active)>",
    "<NSLayoutConstraint:0x600000481d60 UIView:0x7f9304ceafc0.height == 1   (active)>",
    "<NSLayoutConstraint:0x60000029de20 UIView:0x7f9304cf01d0.height == 1   (active)>",
    "<NSLayoutConstraint:0x60000029c750 Wannago.PostedUserInfoView:0x7f9304cf03c0.height == 214   (active)>",
    "<NSLayoutConstraint:0x600000481ea0 Wannago.ReactionToPostView:0x7f9304cf0bb0.height == 46   (active)>",
    "<NSLayoutConstraint:0x600000482bc0 Wannago.PostedDateView:0x7f9304cf29f0.height == 33   (active)>",
    "<NSLayoutConstraint:0x60400028f910 V:|-(0)-[UIView:0x7f9304cd97c0]   (active, names: '|':UITableViewCellContentView:0x7f9304cd6bb0 )>",
    "<NSLayoutConstraint:0x604000289e70 V:[UIView:0x7f9304cd97c0]-(0)-[UIView:0x7f9304ceafc0]   (active)>",
    "<NSLayoutConstraint:0x60400028faa0 V:[UIView:0x7f9304ceafc0]-(0)-[Wannago.PostedUserInfoView:0x7f9304cf03c0]   (active)>",
    "<NSLayoutConstraint:0x604000299c80 V:[Wannago.PostedUserInfoView:0x7f9304cf03c0]-(0)-[Wannago.ReactionToPostView:0x7f9304cf0bb0]   (active)>",
    "<NSLayoutConstraint:0x60400028fb90 V:[Wannago.ReactionToPostView:0x7f9304cf0bb0]-(6)-[UILabel:0x7f9304cf0dc0'\U305f\U306a\U3079\U3067\U3059a    \U304a\U6c17\U306b\U5165\U308a\U306e\U5199\U771f\U3067\U3059\U3002']   (active)>",
    "<NSLayoutConstraint:0x60400028f550 V:[UILabel:0x7f9304cf0dc0'\U305f\U306a\U3079\U3067\U3059a    \U304a\U6c17\U306b\U5165\U308a\U306e\U5199\U771f\U3067\U3059\U3002']-(0)-[UIView:0x7f9304cf1af0]   (active)>",
    "<NSLayoutConstraint:0x60400028e8d0 V:[UIView:0x7f9304cf1af0]-(0)-[Wannago.PostedDateView:0x7f9304cf29f0]   (active)>",
    "<NSLayoutConstraint:0x60400028d930 V:[Wannago.PostedDateView:0x7f9304cf29f0]-(0)-[UIView:0x7f9304cf01d0]   (active)>",
    "<NSLayoutConstraint:0x604000290cc0 V:[UIView:0x7f9304cf01d0]-(0)-|   (active, names: '|':UITableViewCellContentView:0x7f9304cd6bb0 )>",
    "<NSLayoutConstraint:0x608000290270 V:|-(0)-[UIButton:0x7f9307caedc0'23\U4ef6\U306e\U30b3\U30e1\U30f3\U30c8\U3092\U898b\U308b']   (active, names: '|':UIView:0x7f9307caf0e0 )>",
    "<NSLayoutConstraint:0x608000297610 V:|-(10)-[Wannago.ToggleButtonView:0x7f9307cae810]   (active, names: '|':UIView:0x7f9304cf1af0 )>",
    "<NSLayoutConstraint:0x6080002984c0 V:[UIButton:0x7f9307caedc0'23\U4ef6\U306e\U30b3\U30e1\U30f3\U30c8\U3092\U898b\U308b']-(10)-[UILabel:0x7f9307ca1680'\U305f\U306a\U3079    \U3059\U3070\U3089\U3057\U3044\U753b\U50cf\U3067\U3059\U306d\U3042\U304a\U3058\U3087\U3042\U3058\U3087\U3042...']   (active)>",
    "<NSLayoutConstraint:0x608000297b60 V:[UILabel:0x7f9307ca1680'\U305f\U306a\U3079    \U3059\U3070\U3089\U3057\U3044\U753b\U50cf\U3067\U3059\U306d\U3042\U304a\U3058\U3087\U3042\U3058\U3087\U3042...']-(10)-[UILabel:0x7f9307c51910'\U305f\U306a\U3079\U3060\U3088    \U6771\U5927\U5bfa\U306b\U884c\U3063\U3066\U307f\U305f\U3044\U306a\U3042\U304a\U3058\U3083\U304a...']   (active)>",
    "<NSLayoutConstraint:0x608000290720 V:[UILabel:0x7f9307c51910'\U305f\U306a\U3079\U3060\U3088    \U6771\U5927\U5bfa\U306b\U884c\U3063\U3066\U307f\U305f\U3044\U306a\U3042\U304a\U3058\U3083\U304a...']-(10)-[UILabel:0x7f9307cafa20'\U306a\U304b\U304c\U308f    \U5357\U5927\U9580\U3060\U306d\U3002']   (active)>",
    "<NSLayoutConstraint:0x608000290cc0 V:[UILabel:0x7f9307cafa20'\U306a\U304b\U304c\U308f    \U5357\U5927\U9580\U3060\U306d\U3002']-(10)-[UILabel:0x7f9307caf2d0'\U305f\U306a\U3079    aofjoaijfoajfoajfo...']   (active)>",
    "<NSLayoutConstraint:0x608000294f00 V:[UILabel:0x7f9307caf2d0'\U305f\U306a\U3079    aofjoaijfoajfoajfo...']-(10)-[UILabel:0x7f9307ca2c90'\U305f\U306a\U3079\U3060\U3088    aofjaoijfoajf']   (active)>",
    "<NSLayoutConstraint:0x6080002976b0 UILabel:0x7f9307ca2c90'\U305f\U306a\U3079\U3060\U3088    aofjaoijfoajf'.bottom == UIView:0x7f9304cf1af0.bottom   (active)>",
    "<NSLayoutConstraint:0x60400028d9d0 'UIView-Encapsulated-Layout-Height' UITableViewCellContentView:0x7f9304cd6bb0.height == 367   (active)>"
)

Will attempt to recover by breaking constraint 
<NSLayoutConstraint:0x608000290270 V:|-(0)-[UIButton:0x7f9307caedc0'23件のコメントを見る']   (active, names: '|':UIView:0x7f9307caf0e0 )>

該当のソースコード

swift
1// コメントの件数分addSubviewしていくメソッド
2    func toggleOpenWithoutUpdate(toggleView: ToggleButtonView, constraint: NSLayoutConstraint, indexPathPointRow: Int) {
3        constraint.isActive = false
4        let array_count = apiTransferObject.postAllCommentArray[indexPathPointRow].count - 1
5        var nextStandardBottomAnchor = NSLayoutYAxisAnchor()
6        for count in 0...array_count {
7            if count == 0 {
8                let label = UILabel()
9                label.numberOfLines = 0
10                label.lineBreakMode = NSLineBreakMode.byCharWrapping
11                label.translatesAutoresizingMaskIntoConstraints = false
12                addedViewDictionary[indexPathPointRow]?.addSubview(label)
13                label.topAnchor.constraint(equalTo: (toggleView.toggleButton.bottomAnchor), constant: 10.0).isActive = true
14                label.leadingAnchor.constraint(equalTo: (addedViewDictionary[indexPathPointRow]?.leadingAnchor)!, constant: 10.0).isActive = true
15                label.trailingAnchor.constraint(equalTo: (addedViewDictionary[indexPathPointRow]?.trailingAnchor)!, constant: -22.0).isActive = true
16                nextStandardBottomAnchor = label.bottomAnchor
17                continue
18            } else if count == array_count {
19                let label = UILabel()
20                label.numberOfLines = 0
21                label.lineBreakMode = NSLineBreakMode.byCharWrapping
22                label.translatesAutoresizingMaskIntoConstraints = false
23                addedViewDictionary[indexPathPointRow]?.addSubview(label)
24                label.topAnchor.constraint(equalTo: (nextStandardBottomAnchor), constant: 10.0).isActive = true
25                label.leadingAnchor.constraint(equalTo: (addedViewDictionary[indexPathPointRow]?.leadingAnchor)!, constant: 10.0).isActive = true
26                label.trailingAnchor.constraint(equalTo: (addedViewDictionary[indexPathPointRow]?.trailingAnchor)!, constant: -22.0).isActive = true
27                label.bottomAnchor.constraint(equalTo: (addedViewDictionary[indexPathPointRow]?.bottomAnchor)!, constant: 0).isActive = true
28                return
29            }
30            let label = UILabel()
31            label.numberOfLines = 0
32            label.lineBreakMode = NSLineBreakMode.byCharWrapping
33            label.translatesAutoresizingMaskIntoConstraints = false
34            addedViewDictionary[indexPathPointRow]?.addSubview(label)
35            label.topAnchor.constraint(equalTo: (nextStandardBottomAnchor), constant: 10.0).isActive = true
36            label.leadingAnchor.constraint(equalTo: (addedViewDictionary[indexPathPointRow]?.leadingAnchor)!, constant: 10.0).isActive = true
37            label.trailingAnchor.constraint(equalTo: (addedViewDictionary[indexPathPointRow]?.trailingAnchor)!, constant: -22.0).isActive = true
38            nextStandardBottomAnchor = label.bottomAnchor
39        }
40    }
41    
42// トグルを開閉するメソッド
43func toggleOpen(toggleView: ToggleButtonView, constraint: NSLayoutConstraint, indexPathPointRow: Int) {
44        tableView.beginUpdates()
45        self.apiTransferObject.toggleBoolArray[indexPathPointRow] = !self.apiTransferObject.toggleBoolArray[indexPathPointRow]
46        toggleOpenWithoutUpdate(toggleView: toggleView, constraint: constraint, indexPathPointRow: indexPathPointRow)
47        tableView.endUpdates()
48    }
49    
50    func toggleClose(toggleView: ToggleButtonView, constraint: NSLayoutConstraint, indexPathPointRow: Int) {
51        tableView.beginUpdates()
52        for subview in (addedViewDictionary[indexPathPointRow]?.subviews)! {
53            if subview.restorationIdentifier == "toggle" {
54                
55                continue
56            }
57            subview.removeFromSuperview()
58        }
59        constraint.isActive = true
60        tableView.endUpdates()
61    }
62