コードで綺麗に View かけた

StatsInputView.swift

import UIKit

class StatsInputView: UIView {
    private let verticalStackView: UIStackView = {
        let stackView = UIStackView()
        stackView.distribution = .fillEqually
        stackView.axis = .vertical
        stackView.alignment = .fill
        return stackView
    }()

    private let columnTitleStackView = RowStackView()
    private let baseStatStackView = RowStackView()
    private let ivStackView = RowStackView()
    private let effortStackView = RowStackView()
    private let realStackView = RowStackView()

    private let emptyColumnTitleLabel = RowTitleLabel()
    private let hTitleLabel = ColumnTitleLabel(text: "HP")
    private let aTitleLabel = ColumnTitleLabel(text: "攻撃")
    private let bTitleLabel = ColumnTitleLabel(text: "防御")
    private let cTitleLabel = ColumnTitleLabel(text: "特攻")
    private let dTitleLabel = ColumnTitleLabel(text: "特防")
    private let sTitleLabel = ColumnTitleLabel(text: "素早")

    private let baseStatTitleLabel = RowTitleLabel(text: "種族")
    private let hBaseStatLabel = BaseStatLabel()
    private let aBaseStatLabel = BaseStatLabel()
    private let bBaseStatLabel = BaseStatLabel()
    private let cBaseStatLabel = BaseStatLabel()
    private let dBaseStatLabel = BaseStatLabel()
    private let sBaseStatLabel = BaseStatLabel()

    private let ivTitleLabel = RowTitleLabel(text: "個体")
    private let hIVField = NumberTextField()
    private let aIVField = NumberTextField()
    private let bIVField = NumberTextField()
    private let cIVField = NumberTextField()
    private let dIVField = NumberTextField()
    private let sIVField = NumberTextField()

    private let effortTitleLabel = RowTitleLabel(text: "努力")
    private let hEffortField = NumberTextField()
    private let aEffortField = NumberTextField()
    private let bEffortField = NumberTextField()
    private let cEffortField = NumberTextField()
    private let dEffortField = NumberTextField()
    private let sEffortField = NumberTextField()

    private let realTitleLabel = RowTitleLabel(text: "実数")
    private let hRealField = NumberTextField()
    private let aRealField = NumberTextField()
    private let bRealField = NumberTextField()
    private let cRealField = NumberTextField()
    private let dRealField = NumberTextField()
    private let sRealField = NumberTextField()

    override init(frame: CGRect) {
        super.init(frame: frame)

        addSubview(verticalStackView)
        verticalStackView.snp.makeConstraints { make in
            make.edges.equalToSuperview()
        }

        columnTitleStackView.addArrangedSubview(emptyColumnTitleLabel)
        columnTitleStackView.addArrangedSubview(hTitleLabel)
        columnTitleStackView.addArrangedSubview(aTitleLabel)
        columnTitleStackView.addArrangedSubview(bTitleLabel)
        columnTitleStackView.addArrangedSubview(cTitleLabel)
        columnTitleStackView.addArrangedSubview(dTitleLabel)
        columnTitleStackView.addArrangedSubview(sTitleLabel)

        baseStatStackView.addArrangedSubview(baseStatTitleLabel)
        baseStatStackView.addArrangedSubview(hBaseStatLabel)
        baseStatStackView.addArrangedSubview(aBaseStatLabel)
        baseStatStackView.addArrangedSubview(bBaseStatLabel)
        baseStatStackView.addArrangedSubview(cBaseStatLabel)
        baseStatStackView.addArrangedSubview(dBaseStatLabel)
        baseStatStackView.addArrangedSubview(sBaseStatLabel)

        ivStackView.addArrangedSubview(ivTitleLabel)
        ivStackView.addArrangedSubview(hIVField)
        ivStackView.addArrangedSubview(aIVField)
        ivStackView.addArrangedSubview(bIVField)
        ivStackView.addArrangedSubview(cIVField)
        ivStackView.addArrangedSubview(dIVField)
        ivStackView.addArrangedSubview(sIVField)

        effortStackView.addArrangedSubview(effortTitleLabel)
        effortStackView.addArrangedSubview(hEffortField)
        effortStackView.addArrangedSubview(aEffortField)
        effortStackView.addArrangedSubview(bEffortField)
        effortStackView.addArrangedSubview(cEffortField)
        effortStackView.addArrangedSubview(dEffortField)
        effortStackView.addArrangedSubview(sEffortField)

        realStackView.addArrangedSubview(realTitleLabel)
        realStackView.addArrangedSubview(hRealField)
        realStackView.addArrangedSubview(aRealField)
        realStackView.addArrangedSubview(bRealField)
        realStackView.addArrangedSubview(cRealField)
        realStackView.addArrangedSubview(dRealField)
        realStackView.addArrangedSubview(sRealField)

        verticalStackView.addArrangedSubview(columnTitleStackView)
        verticalStackView.addArrangedSubview(baseStatStackView)
        verticalStackView.addArrangedSubview(ivStackView)
        verticalStackView.addArrangedSubview(effortStackView)
        verticalStackView.addArrangedSubview(realStackView)
    }

    required init?(coder aDecoder: NSCoder) { fatalError("init(coder:) has not been implemented") }
}

extension StatsInputView {
    private class RowStackView: UIStackView {
        override init(frame: CGRect) {
            super.init(frame: frame)
            distribution = .fillEqually
            axis = .horizontal
            alignment = .fill
        }
        required init(coder: NSCoder) { fatalError("init(coder:) has not been implemented") }
    }

    private class ColumnTitleLabel: UILabel {
        override init(frame: CGRect) {
            super.init(frame: frame)
            font = .systemFont(ofSize: 12)
            textAlignment = .center
        }
        convenience init(text: String?) {
            self.init(frame: .zero)
            self.text = text
        }
        required init?(coder aDecoder: NSCoder) { fatalError("init(coder:) has not been implemented") }
    }

    private class RowTitleLabel: UILabel {
        override init(frame: CGRect) {
            super.init(frame: frame)
            font = .systemFont(ofSize: 12)
            textAlignment = .center
        }
        convenience init(text: String?) {
            self.init(frame: .zero)
            self.text = text
        }
        required init?(coder aDecoder: NSCoder) { fatalError("init(coder:) has not been implemented") }
    }

    private class BaseStatLabel: UILabel {
        override init(frame: CGRect) {
            super.init(frame: frame)
            font = .systemFont(ofSize: 14)
            text = "100"
        }
        required init?(coder aDecoder: NSCoder) { fatalError("init(coder:) has not been implemented") }
    }

    private class NumberTextField: UITextField {
        override init(frame: CGRect) {
            super.init(frame: frame)
            font = .systemFont(ofSize: 14)
        }
        required init?(coder aDecoder: NSCoder) { fatalError("init(coder:) has not been implemented") }
    }
}