Swift 如何使用SnapKit将ScrollView中的按钮阵列居中

如何使用SnapKit在ScrollView中垂直居中显示下面的按钮阵列

for i in 0..<3 {

        itemCount = i

        let aButton = UIButton(type: .custom)

        aButton.frame = CGRect(x: xCoord, y: yCoord, width: buttonWidth, height: buttonHeight)
        aButton.backgroundColor = UIColor.blue
        aButton.layer.cornerRadius = aButton.frame.size.width / 2
        aButton.clipsToBounds = true

        xCoord += buttonWidth + gapBetweenButtons

        aScrollView.addSubview(aButton)

        aButton.snp.makeConstraints { (make) in
            make.center.equalTo(aScrollView)
        }
    }

---

对于i in 0..实现等间距按钮阵列的最佳方法是使用UIStackView。这应该起作用：

let buttonStackView = UIStackView()
buttonStackView.axis = .vertical
buttonStackView.distribution = .equalSpacing
for i in 0..<3 {
    itemCount = i

    let aButton = UIButton(type: .custom)

    aButton.frame = CGRect(x: xCoord, y: yCoord, width: buttonWidth, height: buttonHeight)
    aButton.backgroundColor = UIColor.blue
    aButton.layer.cornerRadius = aButton.frame.size.width / 2
    aButton.clipsToBounds = true

    xCoord += buttonWidth + gapBetweenButtons

    buttonStackView.addArrangedSubview(aButton)

}
aScrollView.addSubview(buttonStackView)
buttonStackView.snp.makeConstraints { (make) in
    make.centerY.equalToSuperview()
}

let buttonStackView=UIStackView（）
buttonStackView.axis=.vertical
buttonStackView.distribution=.equalSpacing
对于0..中的i，实现等间距按钮阵列的最佳方法是使用UIStackView。这应该起作用：

let buttonStackView = UIStackView()
buttonStackView.axis = .vertical
buttonStackView.distribution = .equalSpacing
for i in 0..<3 {
    itemCount = i

    let aButton = UIButton(type: .custom)

    aButton.frame = CGRect(x: xCoord, y: yCoord, width: buttonWidth, height: buttonHeight)
    aButton.backgroundColor = UIColor.blue
    aButton.layer.cornerRadius = aButton.frame.size.width / 2
    aButton.clipsToBounds = true

    xCoord += buttonWidth + gapBetweenButtons

    buttonStackView.addArrangedSubview(aButton)

}
aScrollView.addSubview(buttonStackView)
buttonStackView.snp.makeConstraints { (make) in
    make.centerY.equalToSuperview()
}

let buttonStackView=UIStackView（）
buttonStackView.axis=.vertical
buttonStackView.distribution=.equalSpacing
对于0中的i..更改为水平并得到此结果，我猜按钮之间的间隙与stackview冲突。distribution@mclovin将stackview.spacing=gapBetweenButtons更改为水平，我想gapBetweenButtons与stackview冲突。distribution@mclovin设置stackview.spacing=GapBetween按钮