我想增加UILabel中的影子传播,但我无法找到要执行此操作的属性。我在下面添加了一张照片来说明问题。iOS - UILabel上的影子传播
顶部标签是我能够在Photoshop中创建了预期的效果。底部的标签说明了我在iOS中能够找到的属性。这是我用于底部标签的代码。
let bottomLabel = UILabel(frame: CGRectMake(0, 0, maxWidth, 18))
bottomLabel.backgroundColor = UIColor.clearColor()
bottomLabel.textColor = UIColor.whiteColor()
bottomLabel.font = UIFont.boldSystemFontOfSize(16)
bottomLabel.text = title
bottomLabel.textAlignment = .Center
bottomLabel.numberOfLines = 1
bottomLabel.layer.shadowOffset = CGSize(width: 0, height: 0)
bottomLabel.layer.shadowOpacity = 1
bottomLabel.layer.shadowRadius = 2
我没有找到一个建议,使用第二个标签的阴影,但是这并没有得到预期的结果。这是该标签的代码。
let bottomLabelShadow = UILabel(frame: CGRectMake(0, 1, maxWidth, 18))
bottomLabelShadow.backgroundColor = UIColor.clearColor()
bottomLabelShadow.textColor = UIColor.blackColor()
bottomLabelShadow.font = UIFont.boldSystemFontOfSize(16)
bottomLabelShadow.text = title
bottomLabelShadow.textAlignment = .Center
bottomLabelShadow.numberOfLines = 1
bottomLabelShadow.layer.shadowOffset = CGSize(width: 0, height: 0)
bottomLabelShadow.layer.shadowOpacity = 1
bottomLabelShadow.layer.shadowRadius = 2
其实,有关于阴影的好文章https://makeapppie.com/2015/05/19/swift-swift-how-to-make-a-drop-shadow-in-user-interfaces/ –