我在调整表格 View 单元格以自动调整动态字体大小时遇到困难。请注意,我在代码中使用布局约束,而不是在 Storyboard中。
这是我的 TableView 设置代码:
tableView = UITableView(frame: .zero, style: .grouped)
tableView.register(ChatAnalyticsCell.self, forCellReuseIdentifier: ChatAnalyticsCell.reuseIdentifier)
tableView.rowHeight = UITableView.automaticDimension
tableView.estimatedRowHeight = UITableView.automaticDimension
这是我在 ChatAnalyticsCell
类中的 2 个标签和 ImageView 设置
private var iconImageView: UIImageView = {
let imageView = UIImageView(frame: CGRect(origin: .zero,
size: CGSize(width: 20, height: 20)))
imageView.contentMode = .scaleAspectFill
imageView.clipsToBounds = true
imageView.translatesAutoresizingMaskIntoConstraints = false
imageView.tintColor = UIColor(red: 0.25, green: 0.3, blue: 0.72, alpha: 1)
return imageView
}()
private var segmentLabel: UILabel = {
let label = UILabel()
label.translatesAutoresizingMaskIntoConstraints = false
label.numberOfLines = 0
label.textColor = UIColor.gray
label.font = UIFont.preferredFont(forTextStyle: .footnote)
label.adjustsFontForContentSizeCategory = true
return label
}()
private var segmentDataLabel: UILabel = {
let label = UILabel()
label.translatesAutoresizingMaskIntoConstraints = false
label.numberOfLines = 0
label.textColor = UIColor(red: 0.13, green: 0.15, blue: 0.19, alpha: 0.9)
label.font = UIFont.preferredFont(forTextStyle: .body)
label.adjustsFontForContentSizeCategory = true
return label
}()
这是我添加 subview 和设置约束的函数,以便为动态字体适本地调整大小。
override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
setupSubviews()
}
private func setupSubviews() {
addSubview(iconImageView)
iconImageView.leadingAnchor.constraint(equalTo: contentView.leadingAnchor, constant: 15.0).isActive = true
iconImageView.centerYAnchor.constraint(equalTo: contentView.centerYAnchor).isActive = true
iconImageView.widthAnchor.constraint(equalToConstant: 20.0).isActive = true
iconImageView.heightAnchor.constraint(equalToConstant: 20.0).isActive = true
// Analytics segment label
addSubview(segmentLabel)
segmentLabel.leadingAnchor.constraint(equalTo: iconImageView.trailingAnchor, constant: 20).isActive = true
segmentLabel.topAnchor.constraint(equalTo: contentView.topAnchor, constant: 20).isActive = true
segmentLabel.trailingAnchor.constraint(equalTo: contentView.trailingAnchor, constant: -20).isActive = true
// Segment data label
addSubview(segmentDataLabel)
segmentDataLabel.leadingAnchor.constraint(equalTo: segmentLabel.leadingAnchor).isActive = true
segmentDataLabel.trailingAnchor.constraint(equalTo: segmentLabel.trailingAnchor).isActive = true
segmentDataLabel.topAnchor.constraint(equalTo: segmentLabel.bottomAnchor, constant: 5).isActive = true
segmentDataLabel.bottomAnchor.constraint(equalTo: contentView.bottomAnchor, constant: 20).isActive = true
contentView.heightAnchor.constraint(greaterThanOrEqualToConstant: 80).isActive = true
}
请注意,当我运行代码时,没有约束被打破,但布局没有正确更新。请看截图:
最佳答案
将所有 View 添加到 contentView
!
contentView.addSubview(yourView)
还有一件事 - 你可能想改变 (why?)这个约束,
segmentDataLabel.bottomAnchor.constraint(equalTo: contentView.bottomAnchor, constant: 20).isActive = true
到,
segmentDataLabel.bottomAnchor.constraint(equalTo: contentView.bottomAnchor, constant: -20).isActive = true
其余约束看起来可以计算 contentView
的高度。
关于ios - UITableViewCell 的内容 View 高度未针对动态字体进行调整(NSLayoutConstraints),我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/53881989/