Label 和 TextView 横向溢出 Scroll View
Label and TextView overflows Scroll View horizontally
我有一个滚动视图，其中有一个堆栈视图。在堆栈视图中，我安排了 UITextView 或 UILabel 元素的子视图。
一切都以编程方式完成，没有故事板。
滚动视图出现，我可以很好地滚动它。但不幸的是，它不仅垂直滚动（从上到下）而且水平滚动（向右，屏幕外），我不想这样做（这就是我在 UILabel 上设置 numberOfLines 的原因，试图设置相等的宽度到滚动和堆栈视图，因为堆栈视图的 left/right 属性已连接到视图）。
如果它很重要，则在 viewDidLoad 中或稍后触摸按钮时调用此函数。
scrollView = UIScrollView()
scrollView.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(scrollView)
let leftConstraintScroll = NSLayoutConstraint(item: scrollView, attribute: .left, relatedBy: .equal, toItem: view, attribute: .left, multiplier: 1, constant: 0)
let rightConstraintScroll = NSLayoutConstraint(item: scrollView, attribute: .right, relatedBy: .equal, toItem: view, attribute: .right, multiplier: 1, constant: 0)
let topConstraintScroll = NSLayoutConstraint(item: scrollView, attribute: .top, relatedBy: .equal, toItem: selectedTabIndicator, attribute: .bottom, multiplier: 1, constant: 10)
let bottomConstraintScroll = NSLayoutConstraint(item: scrollView, attribute: .bottom, relatedBy: .equal, toItem: editButton, attribute: .top, multiplier: 1, constant: 0)
view.addConstraints([leftConstraintScroll, rightConstraintScroll, topConstraintScroll, bottomConstraintScroll])
stackView = UIStackView()
stackView.translatesAutoresizingMaskIntoConstraints = false
stackView.axis = .vertical
stackView.spacing = 10
stackView.isLayoutMarginsRelativeArrangement = true
stackView.directionalLayoutMargins = NSDirectionalEdgeInsets(top: 5, leading: 10, bottom: 5, trailing: 10)
// Several elements are added like this (UITextView):
let textView = UITextView()
textView.translatesAutoresizingMaskIntoConstraints = false
textView.delegate = self
textView.isScrollEnabled = false
textView.font = UIFont.systemFont(ofSize: 15)
textView.backgroundColor = Constants.COLOR_P
textView.textColor = .black
textView.text = "XXX"
stackView.addArrangedSubview(textView)
// Or UILabel:
var label = UILabel()
label.translatesAutoresizingMaskIntoConstraints = false
label.numberOfLines = 0
label.textAlignment = .justified
label.textColor = .black
label.font = UIFont.systemFont(ofSize: 15)
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.alignment = .justified
paragraphStyle.hyphenationFactor = 1.0
paragraphStyle.firstLineHeadIndent = 0
paragraphStyle.headIndent = 15
let hyphenAttribute = [NSAttributedString.Key.paragraphStyle: paragraphStyle]
let attributedString = NSMutableAttributedString(string: "XXXXX", attributes: hyphenAttribute)
label.attributedText = attributedString
stackView.addArrangedSubview(label)
scrollView.addSubview(stackView)
let leftConstraint = NSLayoutConstraint(item: stackView, attribute: .left, relatedBy: .equal, toItem: scrollView, attribute: .left, multiplier: 1, constant: 0)
let rightConstraint = NSLayoutConstraint(item: stackView, attribute: .right, relatedBy: .equal, toItem: scrollView, attribute: .right, multiplier: 1, constant: 0)
let topConstraint = NSLayoutConstraint(item: stackView, attribute: .top, relatedBy: .equal, toItem: scrollView, attribute: .top, multiplier: 1, constant: 0)
let bottomConstraint = NSLayoutConstraint(item: stackView, attribute: .bottom, relatedBy: .equal, toItem: scrollView, attribute: .bottom, multiplier: 1, constant: 0)
scrollView.addConstraints([leftConstraint, rightConstraint, topConstraint, bottomConstraint, bottomConstraint])
注意：selectedTabIndicator 和 editButton 分别位于滚动视图的上方和下方。
我可以解决它，也许不是最好的解决方案，所以我暂时把这个问题悬而未决，以获得更好的解决方案。
基本上，我在创建它们时为每个 UILabel 和 UITextView 提供了 widthAnchor 约束，然后再将它们添加到堆栈视图。
label.widthAnchor.constraint(equalToConstant: UIScreen.main.bounds.width - 20).isActive = true
首先注意：post输入代码时，post一些实际代码。您的代码指的是 scrollView 和 recipeScrollView，我认为它们是相同的滚动视图。另外，请尝试 post 完整信息 - 您的代码还引用了 selectedTabIndicator 和 editButton，这两个都没有在您的问题中被识别或描述。
第二个注意事项：开始使用更现代的约束语法。例如：
NSLayoutConstraint.activate([
recipeScrollView.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 0.0),
recipeScrollView.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: 0.0),
recipeScrollView.topAnchor.constraint(equalTo: selectedTabIndicator.bottomAnchor, constant: 10.0),
recipeScrollView.bottomAnchor.constraint(equalTo: editButton.topAnchor, constant: 0.0),
])
比
更易于使用（和阅读）
let leftConstraintScroll = NSLayoutConstraint(item: recipeScrollView, attribute: .left, relatedBy: .equal, toItem: view, attribute: .left, multiplier: 1, constant: 0)
let rightConstraintScroll = NSLayoutConstraint(item: recipeScrollView, attribute: .right, relatedBy: .equal, toItem: view, attribute: .right, multiplier: 1, constant: 0)
let topConstraintScroll = NSLayoutConstraint(item: recipeScrollView, attribute: .top, relatedBy: .equal, toItem: selectedTabIndicator, attribute: .bottom, multiplier: 1, constant: 10)
let bottomConstraintScroll = NSLayoutConstraint(item: recipeScrollView, attribute: .bottom, relatedBy: .equal, toItem: editButton, attribute: .top, multiplier: 1, constant: 0)
view.addConstraints([leftConstraintScroll, rightConstraintScroll, topConstraintScroll, bottomConstraintScroll])
第三个注意事项：尊重安全区...因此您的主要约束应该是：
recipeScrollView.leadingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leadingAnchor, constant: 0.0)
等等。
第四点注意：将滚动视图的内容限制在 .contentLayoutGuide，而不是滚动视图本身。
要解决您的“水平滚动”问题，请设置堆栈视图相对于滚动视图的 .frameLayoutGuide 的宽度，而不是设置 label 和 textView 宽度：
stackView.widthAnchor.constraint(equalTo: recipeScrollView.frameLayoutGuide.widthAnchor, constant: 0.0)
这是您的代码，使用这些提示进行了编辑。我在顶部附近放了一个蓝色视图作为 selectedTabIndicator，在底部附近放了一个蓝色按钮作为 editButton:
class AnotherScrollViewController: UIViewController, UITextViewDelegate {
var recipeScrollView: UIScrollView!
var stackView: UIStackView!
var textView: UITextView!
var selectedTabIndicator: UIView!
var editButton: UIButton!
var editButtonBottom: NSLayoutConstraint!
override func viewDidLoad() {
super.viewDidLoad()
selectedTabIndicator = UIView()
selectedTabIndicator.backgroundColor = .blue
selectedTabIndicator.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(selectedTabIndicator)
editButton = UIButton()
editButton.backgroundColor = .blue
editButton.setTitle("Edit", for: [])
editButton.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(editButton)
recipeScrollView = UIScrollView()
recipeScrollView.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(recipeScrollView)
let g = view.safeAreaLayoutGuide
editButtonBottom = editButton.bottomAnchor.constraint(equalTo: g.bottomAnchor, constant: -4.0)
NSLayoutConstraint.activate([
selectedTabIndicator.topAnchor.constraint(equalTo: g.topAnchor, constant: 20.0),
selectedTabIndicator.leadingAnchor.constraint(equalTo: g.leadingAnchor, constant: 8.0),
selectedTabIndicator.widthAnchor.constraint(equalToConstant: 200.0),
selectedTabIndicator.heightAnchor.constraint(equalToConstant: 4.0),
//editButton.bottomAnchor.constraint(equalTo: g.bottomAnchor, constant: 4.0),
editButtonBottom,
editButton.centerXAnchor.constraint(equalTo: g.centerXAnchor),
recipeScrollView.topAnchor.constraint(equalTo: selectedTabIndicator.bottomAnchor, constant: 10.0),
recipeScrollView.leadingAnchor.constraint(equalTo: g.leadingAnchor, constant: 0.0),
recipeScrollView.trailingAnchor.constraint(equalTo: g.trailingAnchor, constant: 0.0),
recipeScrollView.bottomAnchor.constraint(equalTo: editButton.topAnchor, constant: 0.0),
])
stackView = UIStackView()
stackView.translatesAutoresizingMaskIntoConstraints = false
stackView.axis = .vertical
stackView.spacing = 10
stackView.isLayoutMarginsRelativeArrangement = true
stackView.directionalLayoutMargins = NSDirectionalEdgeInsets(top: 5, leading: 10, bottom: 5, trailing: 10)
// Several elements are added like this (UITextView):
textView = UITextView()
textView.translatesAutoresizingMaskIntoConstraints = false
textView.delegate = self
textView.isScrollEnabled = false
textView.font = UIFont.systemFont(ofSize: 15)
textView.backgroundColor = .cyan // Constants.COLOR_P
textView.textColor = .black
textView.text = "XXX"
stackView.addArrangedSubview(textView)
// Or UILabel:
var label = UILabel()
label.translatesAutoresizingMaskIntoConstraints = false
label.numberOfLines = 0
label.textAlignment = .justified
label.backgroundColor = .green // so we can easily see the label frame
label.textColor = .black
label.font = UIFont.systemFont(ofSize: 15)
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.alignment = .justified
paragraphStyle.hyphenationFactor = 1.0
paragraphStyle.firstLineHeadIndent = 0
paragraphStyle.headIndent = 15
let hyphenAttribute = [NSAttributedString.Key.paragraphStyle: paragraphStyle]
let labelString = "This is the string for the label. It will wrap if it is too long to fit in the allocated width."
//let attributedString = NSMutableAttributedString(string: "XXXXX", attributes: hyphenAttribute)
let attributedString = NSMutableAttributedString(string: labelString, attributes: hyphenAttribute)
label.attributedText = attributedString
stackView.addArrangedSubview(label)
recipeScrollView.addSubview(stackView)
let contentG = recipeScrollView.contentLayoutGuide
let frameG = recipeScrollView.frameLayoutGuide
NSLayoutConstraint.activate([
stackView.topAnchor.constraint(equalTo: contentG.topAnchor, constant: 0.0),
stackView.leadingAnchor.constraint(equalTo: contentG.leadingAnchor, constant: 0.0),
stackView.trailingAnchor.constraint(equalTo: contentG.trailingAnchor, constant: 0.0),
stackView.bottomAnchor.constraint(equalTo: contentG.bottomAnchor, constant: 0.0),
stackView.widthAnchor.constraint(equalTo: frameG.widthAnchor, constant: 0.0),
])
recipeScrollView.backgroundColor = .red
let notificationCenter = NotificationCenter.default
notificationCenter.addObserver(self, selector: #selector(adjustForKeyboard), name: UIResponder.keyboardWillHideNotification, object: nil)
notificationCenter.addObserver(self, selector: #selector(adjustForKeyboard), name: UIResponder.keyboardWillChangeFrameNotification, object: nil)
editButton.addTarget(self, action: #selector(self.editButtonTapped), for: .touchUpInside)
}
@objc func editButtonTapped() -> Void {
if textView.isFirstResponder {
textView.resignFirstResponder()
} else {
textView.becomeFirstResponder()
}
}
@objc func adjustForKeyboard(notification: Notification) {
guard let keyboardValue = notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as? NSValue else { return }
let keyboardScreenEndFrame = keyboardValue.cgRectValue
let keyboardViewEndFrame = view.convert(keyboardScreenEndFrame, from: view.window)
print(keyboardViewEndFrame.height)
var c: CGFloat = -4.0
if notification.name != UIResponder.keyboardWillHideNotification {
c -= (keyboardViewEndFrame.height - view.safeAreaInsets.bottom)
}
editButtonBottom.constant = c
editButton.setTitle(c == -4 ? "Edit" : "Done", for: [])
}
}
我有一个滚动视图，其中有一个堆栈视图。在堆栈视图中，我安排了 UITextView 或 UILabel 元素的子视图。 一切都以编程方式完成，没有故事板。
滚动视图出现，我可以很好地滚动它。但不幸的是，它不仅垂直滚动（从上到下）而且水平滚动（向右，屏幕外），我不想这样做（这就是我在 UILabel 上设置 numberOfLines 的原因，试图设置相等的宽度到滚动和堆栈视图，因为堆栈视图的 left/right 属性已连接到视图）。
如果它很重要，则在 viewDidLoad 中或稍后触摸按钮时调用此函数。
scrollView = UIScrollView()
scrollView.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(scrollView)
let leftConstraintScroll = NSLayoutConstraint(item: scrollView, attribute: .left, relatedBy: .equal, toItem: view, attribute: .left, multiplier: 1, constant: 0)
let rightConstraintScroll = NSLayoutConstraint(item: scrollView, attribute: .right, relatedBy: .equal, toItem: view, attribute: .right, multiplier: 1, constant: 0)
let topConstraintScroll = NSLayoutConstraint(item: scrollView, attribute: .top, relatedBy: .equal, toItem: selectedTabIndicator, attribute: .bottom, multiplier: 1, constant: 10)
let bottomConstraintScroll = NSLayoutConstraint(item: scrollView, attribute: .bottom, relatedBy: .equal, toItem: editButton, attribute: .top, multiplier: 1, constant: 0)
view.addConstraints([leftConstraintScroll, rightConstraintScroll, topConstraintScroll, bottomConstraintScroll])
stackView = UIStackView()
stackView.translatesAutoresizingMaskIntoConstraints = false
stackView.axis = .vertical
stackView.spacing = 10
stackView.isLayoutMarginsRelativeArrangement = true
stackView.directionalLayoutMargins = NSDirectionalEdgeInsets(top: 5, leading: 10, bottom: 5, trailing: 10)
// Several elements are added like this (UITextView):
let textView = UITextView()
textView.translatesAutoresizingMaskIntoConstraints = false
textView.delegate = self
textView.isScrollEnabled = false
textView.font = UIFont.systemFont(ofSize: 15)
textView.backgroundColor = Constants.COLOR_P
textView.textColor = .black
textView.text = "XXX"
stackView.addArrangedSubview(textView)
// Or UILabel:
var label = UILabel()
label.translatesAutoresizingMaskIntoConstraints = false
label.numberOfLines = 0
label.textAlignment = .justified
label.textColor = .black
label.font = UIFont.systemFont(ofSize: 15)
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.alignment = .justified
paragraphStyle.hyphenationFactor = 1.0
paragraphStyle.firstLineHeadIndent = 0
paragraphStyle.headIndent = 15
let hyphenAttribute = [NSAttributedString.Key.paragraphStyle: paragraphStyle]
let attributedString = NSMutableAttributedString(string: "XXXXX", attributes: hyphenAttribute)
label.attributedText = attributedString
stackView.addArrangedSubview(label)
scrollView.addSubview(stackView)
let leftConstraint = NSLayoutConstraint(item: stackView, attribute: .left, relatedBy: .equal, toItem: scrollView, attribute: .left, multiplier: 1, constant: 0)
let rightConstraint = NSLayoutConstraint(item: stackView, attribute: .right, relatedBy: .equal, toItem: scrollView, attribute: .right, multiplier: 1, constant: 0)
let topConstraint = NSLayoutConstraint(item: stackView, attribute: .top, relatedBy: .equal, toItem: scrollView, attribute: .top, multiplier: 1, constant: 0)
let bottomConstraint = NSLayoutConstraint(item: stackView, attribute: .bottom, relatedBy: .equal, toItem: scrollView, attribute: .bottom, multiplier: 1, constant: 0)
scrollView.addConstraints([leftConstraint, rightConstraint, topConstraint, bottomConstraint, bottomConstraint])
注意：selectedTabIndicator 和 editButton 分别位于滚动视图的上方和下方。
我可以解决它，也许不是最好的解决方案，所以我暂时把这个问题悬而未决，以获得更好的解决方案。
基本上，我在创建它们时为每个 UILabel 和 UITextView 提供了 widthAnchor 约束，然后再将它们添加到堆栈视图。
label.widthAnchor.constraint(equalToConstant: UIScreen.main.bounds.width - 20).isActive = true
首先注意：post输入代码时，post一些实际代码。您的代码指的是 scrollView 和 recipeScrollView，我认为它们是相同的滚动视图。另外，请尝试 post 完整信息 - 您的代码还引用了 selectedTabIndicator 和 editButton，这两个都没有在您的问题中被识别或描述。
第二个注意事项：开始使用更现代的约束语法。例如：
NSLayoutConstraint.activate([
recipeScrollView.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 0.0),
recipeScrollView.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: 0.0),
recipeScrollView.topAnchor.constraint(equalTo: selectedTabIndicator.bottomAnchor, constant: 10.0),
recipeScrollView.bottomAnchor.constraint(equalTo: editButton.topAnchor, constant: 0.0),
])
比
更易于使用（和阅读）let leftConstraintScroll = NSLayoutConstraint(item: recipeScrollView, attribute: .left, relatedBy: .equal, toItem: view, attribute: .left, multiplier: 1, constant: 0)
let rightConstraintScroll = NSLayoutConstraint(item: recipeScrollView, attribute: .right, relatedBy: .equal, toItem: view, attribute: .right, multiplier: 1, constant: 0)
let topConstraintScroll = NSLayoutConstraint(item: recipeScrollView, attribute: .top, relatedBy: .equal, toItem: selectedTabIndicator, attribute: .bottom, multiplier: 1, constant: 10)
let bottomConstraintScroll = NSLayoutConstraint(item: recipeScrollView, attribute: .bottom, relatedBy: .equal, toItem: editButton, attribute: .top, multiplier: 1, constant: 0)
view.addConstraints([leftConstraintScroll, rightConstraintScroll, topConstraintScroll, bottomConstraintScroll])
第三个注意事项：尊重安全区...因此您的主要约束应该是：
recipeScrollView.leadingAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leadingAnchor, constant: 0.0)
等等。
第四点注意：将滚动视图的内容限制在 .contentLayoutGuide，而不是滚动视图本身。
要解决您的“水平滚动”问题，请设置堆栈视图相对于滚动视图的 .frameLayoutGuide 的宽度，而不是设置 label 和 textView 宽度：
stackView.widthAnchor.constraint(equalTo: recipeScrollView.frameLayoutGuide.widthAnchor, constant: 0.0)
这是您的代码，使用这些提示进行了编辑。我在顶部附近放了一个蓝色视图作为 selectedTabIndicator，在底部附近放了一个蓝色按钮作为 editButton:
class AnotherScrollViewController: UIViewController, UITextViewDelegate {
var recipeScrollView: UIScrollView!
var stackView: UIStackView!
var textView: UITextView!
var selectedTabIndicator: UIView!
var editButton: UIButton!
var editButtonBottom: NSLayoutConstraint!
override func viewDidLoad() {
super.viewDidLoad()
selectedTabIndicator = UIView()
selectedTabIndicator.backgroundColor = .blue
selectedTabIndicator.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(selectedTabIndicator)
editButton = UIButton()
editButton.backgroundColor = .blue
editButton.setTitle("Edit", for: [])
editButton.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(editButton)
recipeScrollView = UIScrollView()
recipeScrollView.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(recipeScrollView)
let g = view.safeAreaLayoutGuide
editButtonBottom = editButton.bottomAnchor.constraint(equalTo: g.bottomAnchor, constant: -4.0)
NSLayoutConstraint.activate([
selectedTabIndicator.topAnchor.constraint(equalTo: g.topAnchor, constant: 20.0),
selectedTabIndicator.leadingAnchor.constraint(equalTo: g.leadingAnchor, constant: 8.0),
selectedTabIndicator.widthAnchor.constraint(equalToConstant: 200.0),
selectedTabIndicator.heightAnchor.constraint(equalToConstant: 4.0),
//editButton.bottomAnchor.constraint(equalTo: g.bottomAnchor, constant: 4.0),
editButtonBottom,
editButton.centerXAnchor.constraint(equalTo: g.centerXAnchor),
recipeScrollView.topAnchor.constraint(equalTo: selectedTabIndicator.bottomAnchor, constant: 10.0),
recipeScrollView.leadingAnchor.constraint(equalTo: g.leadingAnchor, constant: 0.0),
recipeScrollView.trailingAnchor.constraint(equalTo: g.trailingAnchor, constant: 0.0),
recipeScrollView.bottomAnchor.constraint(equalTo: editButton.topAnchor, constant: 0.0),
])
stackView = UIStackView()
stackView.translatesAutoresizingMaskIntoConstraints = false
stackView.axis = .vertical
stackView.spacing = 10
stackView.isLayoutMarginsRelativeArrangement = true
stackView.directionalLayoutMargins = NSDirectionalEdgeInsets(top: 5, leading: 10, bottom: 5, trailing: 10)
// Several elements are added like this (UITextView):
textView = UITextView()
textView.translatesAutoresizingMaskIntoConstraints = false
textView.delegate = self
textView.isScrollEnabled = false
textView.font = UIFont.systemFont(ofSize: 15)
textView.backgroundColor = .cyan // Constants.COLOR_P
textView.textColor = .black
textView.text = "XXX"
stackView.addArrangedSubview(textView)
// Or UILabel:
var label = UILabel()
label.translatesAutoresizingMaskIntoConstraints = false
label.numberOfLines = 0
label.textAlignment = .justified
label.backgroundColor = .green // so we can easily see the label frame
label.textColor = .black
label.font = UIFont.systemFont(ofSize: 15)
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.alignment = .justified
paragraphStyle.hyphenationFactor = 1.0
paragraphStyle.firstLineHeadIndent = 0
paragraphStyle.headIndent = 15
let hyphenAttribute = [NSAttributedString.Key.paragraphStyle: paragraphStyle]
let labelString = "This is the string for the label. It will wrap if it is too long to fit in the allocated width."
//let attributedString = NSMutableAttributedString(string: "XXXXX", attributes: hyphenAttribute)
let attributedString = NSMutableAttributedString(string: labelString, attributes: hyphenAttribute)
label.attributedText = attributedString
stackView.addArrangedSubview(label)
recipeScrollView.addSubview(stackView)
let contentG = recipeScrollView.contentLayoutGuide
let frameG = recipeScrollView.frameLayoutGuide
NSLayoutConstraint.activate([
stackView.topAnchor.constraint(equalTo: contentG.topAnchor, constant: 0.0),
stackView.leadingAnchor.constraint(equalTo: contentG.leadingAnchor, constant: 0.0),
stackView.trailingAnchor.constraint(equalTo: contentG.trailingAnchor, constant: 0.0),
stackView.bottomAnchor.constraint(equalTo: contentG.bottomAnchor, constant: 0.0),
stackView.widthAnchor.constraint(equalTo: frameG.widthAnchor, constant: 0.0),
])
recipeScrollView.backgroundColor = .red
let notificationCenter = NotificationCenter.default
notificationCenter.addObserver(self, selector: #selector(adjustForKeyboard), name: UIResponder.keyboardWillHideNotification, object: nil)
notificationCenter.addObserver(self, selector: #selector(adjustForKeyboard), name: UIResponder.keyboardWillChangeFrameNotification, object: nil)
editButton.addTarget(self, action: #selector(self.editButtonTapped), for: .touchUpInside)
}
@objc func editButtonTapped() -> Void {
if textView.isFirstResponder {
textView.resignFirstResponder()
} else {
textView.becomeFirstResponder()
}
}
@objc func adjustForKeyboard(notification: Notification) {
guard let keyboardValue = notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as? NSValue else { return }
let keyboardScreenEndFrame = keyboardValue.cgRectValue
let keyboardViewEndFrame = view.convert(keyboardScreenEndFrame, from: view.window)
print(keyboardViewEndFrame.height)
var c: CGFloat = -4.0
if notification.name != UIResponder.keyboardWillHideNotification {
c -= (keyboardViewEndFrame.height - view.safeAreaInsets.bottom)
}
editButtonBottom.constant = c
editButton.setTitle(c == -4 ? "Edit" : "Done", for: [])
}
}