如何使用 SnapKit 以编程方式对齐 Stackview 中的元素?
How to programmatically align elements in a Stackview using SnapKit?
我正在尝试在自定义可重用视图中实现特定设计。
(类似这样的东西:)
所以我传递了一个 URL 来检索图像,并传递了一个字符串以在下面添加。
首先,我希望整个视图是元素的宽度(如果文本很长,那么整个视图会更宽),我不知道该怎么做,视图似乎是整个屏幕宽度。
其次,我想让项目水平和垂直居中,我试过了。
这是我当前的代码:
func initLayout() {
stackView.axis = NSLayoutConstraint.Axis.vertical
stackView.distribution = UIStackView.Distribution.fillEqually
stackView.alignment = UIStackView.Alignment.center
stackView.spacing = 10.0
stackView.addArrangedSubview(imageView)
stackView.addArrangedSubview(textContainer)
stackView.translatesAutoresizingMaskIntoConstraints = false
self.addSubview(stackView)
self.snp.makeConstraints { (make) -> Void in
make.height.equalTo(70)
}
self.stackView.snp.makeConstraints{ (make) -> Void in
make.edges.equalTo(self)
}
}
结果如下:
如你所见(或不可见),视图居中在屏幕中间,这不是我想要的。视图应该是文本的宽度,所有内容都在这个特定宽度内居中,然后我将它添加到我的 VC 中并将它放置在前面。
如果我理解得很好,那是你的约束 没有 Snapkit:
在 class 控制器声明下设置对象:
let myImageView: UIImageView = {
let iv = UIImageView()
iv.contentMode = .scaleToFill
iv.clipsToBounds = true
iv.backgroundColor = .red
iv.translatesAutoresizingMaskIntoConstraints = false
return iv
}()
let myLabel: UILabel = {
let label = UILabel()
label.text = "Débats"
label.textColor = .white
label.textAlignment = .center
label.font = .systemFont(ofSize: 30, weight: .semibold) // set your font size here
label.translatesAutoresizingMaskIntoConstraints = false
return label
}()
现在在 viewDidLoad 中设置参数和约束:
myImageView.image = UIImage(named: "profilo") // set here your image
let myWidth = myLabel.intrinsicContentSize.width // This reveal only text width in label
view.addSubview(myLabel)
myLabel.widthAnchor.constraint(equalTo: view.widthAnchor, multiplier: 0.5).isActive = true
myLabel.heightAnchor.constraint(equalToConstant: 50).isActive = true
myLabel.centerYAnchor.constraint(equalTo: view.centerYAnchor, constant: 25).isActive = true
myLabel.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
view.addSubview(myImageView)
myImageView.widthAnchor.constraint(equalToConstant: myWidth).isActive = true
myImageView.heightAnchor.constraint(equalTo: myImageView.widthAnchor).isActive = true
myImageView.bottomAnchor.constraint(equalTo: myLabel.topAnchor).isActive = true
myImageView.centerXAnchor.constraint(equalTo: myLabel.centerXAnchor).isActive = true
这是结果:
兴趣代码:
class Aiutotipo: UIViewController {
let myImageView: UIImageView = {
let iv = UIImageView()
iv.contentMode = .scaleToFill
iv.clipsToBounds = true
iv.backgroundColor = .red
iv.translatesAutoresizingMaskIntoConstraints = false
return iv
}()
let myLabel: UILabel = {
let label = UILabel()
label.text = "Débats"
label.textColor = .white
label.textAlignment = .center
label.font = .systemFont(ofSize: 30, weight: .semibold)
label.translatesAutoresizingMaskIntoConstraints = false
return label
}()
override func viewDidLoad() {
super.viewDidLoad()
myImageView.image = UIImage(named: "profilo") // set here your image
let myWidth = myLabel.intrinsicContentSize.width // This reveal only text width in label
view.addSubview(myLabel)
myLabel.widthAnchor.constraint(equalTo: view.widthAnchor, multiplier: 0.5).isActive = true
myLabel.heightAnchor.constraint(equalToConstant: 50).isActive = true
myLabel.centerYAnchor.constraint(equalTo: view.centerYAnchor, constant: 25).isActive = true
myLabel.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
view.addSubview(myImageView)
myImageView.widthAnchor.constraint(equalToConstant: myWidth).isActive = true
myImageView.heightAnchor.constraint(equalTo: myImageView.widthAnchor).isActive = true
myImageView.bottomAnchor.constraint(equalTo: myLabel.topAnchor).isActive = true
myImageView.centerXAnchor.constraint(equalTo: myLabel.centerXAnchor).isActive = true
}
}
我正在尝试在自定义可重用视图中实现特定设计。
(类似这样的东西:)
所以我传递了一个 URL 来检索图像,并传递了一个字符串以在下面添加。
首先,我希望整个视图是元素的宽度(如果文本很长,那么整个视图会更宽),我不知道该怎么做,视图似乎是整个屏幕宽度。
其次,我想让项目水平和垂直居中,我试过了。
这是我当前的代码:
func initLayout() {
stackView.axis = NSLayoutConstraint.Axis.vertical
stackView.distribution = UIStackView.Distribution.fillEqually
stackView.alignment = UIStackView.Alignment.center
stackView.spacing = 10.0
stackView.addArrangedSubview(imageView)
stackView.addArrangedSubview(textContainer)
stackView.translatesAutoresizingMaskIntoConstraints = false
self.addSubview(stackView)
self.snp.makeConstraints { (make) -> Void in
make.height.equalTo(70)
}
self.stackView.snp.makeConstraints{ (make) -> Void in
make.edges.equalTo(self)
}
}
结果如下:
如你所见(或不可见),视图居中在屏幕中间,这不是我想要的。视图应该是文本的宽度,所有内容都在这个特定宽度内居中,然后我将它添加到我的 VC 中并将它放置在前面。
如果我理解得很好,那是你的约束 没有 Snapkit:
在 class 控制器声明下设置对象:
let myImageView: UIImageView = {
let iv = UIImageView()
iv.contentMode = .scaleToFill
iv.clipsToBounds = true
iv.backgroundColor = .red
iv.translatesAutoresizingMaskIntoConstraints = false
return iv
}()
let myLabel: UILabel = {
let label = UILabel()
label.text = "Débats"
label.textColor = .white
label.textAlignment = .center
label.font = .systemFont(ofSize: 30, weight: .semibold) // set your font size here
label.translatesAutoresizingMaskIntoConstraints = false
return label
}()
现在在 viewDidLoad 中设置参数和约束:
myImageView.image = UIImage(named: "profilo") // set here your image
let myWidth = myLabel.intrinsicContentSize.width // This reveal only text width in label
view.addSubview(myLabel)
myLabel.widthAnchor.constraint(equalTo: view.widthAnchor, multiplier: 0.5).isActive = true
myLabel.heightAnchor.constraint(equalToConstant: 50).isActive = true
myLabel.centerYAnchor.constraint(equalTo: view.centerYAnchor, constant: 25).isActive = true
myLabel.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
view.addSubview(myImageView)
myImageView.widthAnchor.constraint(equalToConstant: myWidth).isActive = true
myImageView.heightAnchor.constraint(equalTo: myImageView.widthAnchor).isActive = true
myImageView.bottomAnchor.constraint(equalTo: myLabel.topAnchor).isActive = true
myImageView.centerXAnchor.constraint(equalTo: myLabel.centerXAnchor).isActive = true
这是结果:
兴趣代码:
class Aiutotipo: UIViewController {
let myImageView: UIImageView = {
let iv = UIImageView()
iv.contentMode = .scaleToFill
iv.clipsToBounds = true
iv.backgroundColor = .red
iv.translatesAutoresizingMaskIntoConstraints = false
return iv
}()
let myLabel: UILabel = {
let label = UILabel()
label.text = "Débats"
label.textColor = .white
label.textAlignment = .center
label.font = .systemFont(ofSize: 30, weight: .semibold)
label.translatesAutoresizingMaskIntoConstraints = false
return label
}()
override func viewDidLoad() {
super.viewDidLoad()
myImageView.image = UIImage(named: "profilo") // set here your image
let myWidth = myLabel.intrinsicContentSize.width // This reveal only text width in label
view.addSubview(myLabel)
myLabel.widthAnchor.constraint(equalTo: view.widthAnchor, multiplier: 0.5).isActive = true
myLabel.heightAnchor.constraint(equalToConstant: 50).isActive = true
myLabel.centerYAnchor.constraint(equalTo: view.centerYAnchor, constant: 25).isActive = true
myLabel.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
view.addSubview(myImageView)
myImageView.widthAnchor.constraint(equalToConstant: myWidth).isActive = true
myImageView.heightAnchor.constraint(equalTo: myImageView.widthAnchor).isActive = true
myImageView.bottomAnchor.constraint(equalTo: myLabel.topAnchor).isActive = true
myImageView.centerXAnchor.constraint(equalTo: myLabel.centerXAnchor).isActive = true
}
}