Question

我定义了这样的网格视图：

let lb01 = NSTextField(labelWithString: "01")
....
let gridView = NSGridView(views:
  [ [empty, lb01],
    [empty, lb02],
    [lb03, lb04]
  ])

gridView.translatesAutoresizingMaskIntoConstraints = false  
self.addSubview(gridView)

let layoutViewMap = ["another View": anotherView, "GridView": gridView]
var constraintList = [NSLayoutConstraint]()
let constraintV = NSLayoutConstraint.constraints( withVisualFormat: "V:[GridView]-50-[anotherView]", options: [], metrics: nil, views: layoutViewMap)
constraintList += constraintV
let constraintH = NSLayoutConstraint.constraints( withVisualFormat: "|-20-[GridView(==300)]", options: [], metrics: nil, views: layoutViewMap)
constraintList += constraintH

NSLayoutConstraint.activate(constraintList)

在某些情况下，网格视图的高度增长

我可以用

定义一个显式高度

let constraintV = NSLayoutConstraint.constraints( withVisualFormat: "V:[GridView(==70)]-50-[anotherView]", options: [], metrics: nil, views: layoutViewMap)

我如何存档，高度未明确给出，但计算高度等与其内容

Answer 1

听起来你想要的是你的NSGridView拥抱它包含的内容。为此，您只需要在视图上提升contentHuggingPriority。

gridView.setContentHuggingPriority(600, for: .horizontal)
gridView.setContentHuggingPriority(600, for: .vertical)

600有些随意（默认为249，刚好低于.defaultLow），但它来自WWDC 2016 Auto Layout talk

将NSGridView高度设置为其内容视图的高度

1 个答案: