Question

我有一个非常基本的UICollectionView。在我的CollectionViewCell中，我有一个＆＃34; thumbnailImage＆＃34;这只是一个图像。我希望有一个从黑色渐变到渐变色的渐变层，但我也希望这个CAGradient的UILabel ON TOP 而不是下面。标签是＆＃34; MovieTitle＆＃34;。我以编程方式执行所有操作，包括约束。我该怎么做？这是我的代码

let myView: UIView = {
    let view = UIView()
    return view
}()

let gradientView: CAGradientLayer = {
    let grad = CAGradientLayer()
    grad.colors = [UIColor.white.cgColor, UIColor.red.cgColor]
    grad.locations = [0.7, 1.2]
    return grad
}()

func setupViews() {
    thumbnailImageView.addSubview(movieTitle)
    addSubview(thumbnailImageView)
    thumbnailImageView.addSubview(dividerLine)
    thumbnailImageView.addSubview(myView)
    myView.layer.addSublayer(gradientView)

    addConstrainsWithFormat(format: "H:|[v0]|", views: thumbnailImageView)
    addConstrainsWithFormat(format: "V:|[v0]|", views: thumbnailImageView)

    thumbnailImageView.addConstrainsWithFormat(format: "H:|[v0]|", views: myView)
    thumbnailImageView.addConstrainsWithFormat(format: "V:|[v0]|", views: myView)

    thumbnailImageView.addConstrainsWithFormat(format: "H:|[v0]|", views: dividerLine)
    thumbnailImageView.addConstrainsWithFormat(format: "V:[v0(0.75)]|", views: dividerLine)

    thumbnailImageView.addConstrainsWithFormat(format: "H:|-16-[v0]-16-|", views: movieTitle)
    thumbnailImageView.addConstrainsWithFormat(format: "V:[v0(25)]-8-|", views: movieTitle)
}

Answer 1

尝试更改视图的顺序，以便标签显示在视图上方，其中包含渐变：

With ws
  .Unprotect Password:="password" 
  .Cells(iRow, 1).Value = Me.Textbox1.Value
  .Cells(iRow, 1).Value = Me.time.Value
  .Cells(iRow, 2).Value = Me.card.Value 
  .Cells(iRow, 1).Value = Me.nature.Value
  .Cells(iRow, 2).Value = Me.ma.Value
  .Cells(iRow, 1).Value = Me.mem1.Value
  .Cells(iRow, 2).Value = Me.mem2.Value
  .Cells(iRow, 3).Value = Me.mem3.Value
  .Cells(iRow, 4).Value = Me.mem4.Value
  .Cells(iRow, 5).Value = Me.mem5.Value
  .Cells(iRow, 6).Value = Me.mem6.Value
  .Cells(iRow, 7).Value = Me.mem7.Value
  .Cells(iRow, 8).Value = Me.mem8.Value
  .Cells(iRow, 9).Value = Me.mem9.Value
  .Cells(iRow, 10).Value = Me.mem10.Value
  .Protect Password:="password"
End With

您还可以在层次结构中现有图层/视图的下方或上方插入图层和视图：

myView.layer.addSublayer(gradientView)
thumbnailImageView.addSubview(myView)
thumbnailImageView.addSubview(movieTitle)
thumbnailImageView.addSubview(dividerLine)
addSubview(thumbnailImageView)

如何在渐变顶部添加标签？

1 个答案: