我想为我的图像创建一个文本叠加层.问题是,如果生病了尝试添加第二个文本,如字幕,它会忽略我的字体大小.
titleLayer.frame = CGRectMake(0,80,imageView.bounds.width,50)
subTitleLayer.frame = CGRectMake(0,130,40)
titleLayer.string = "Title"
subTitleLayer.string = "Subtitle"
let fontName: CFStringRef = "HelveticaNeue"
let fontSubName: CFStringRef = "HelveticaNeue-Thin"
titleLayer.font = CTFontCreateWithName(fontName,16,nil)
subTitleLayer.font = CTFontCreateWithName(fontSubName,10,nil) // Ignores the font-size
imageView.layer.addSublayer(titleLayer)
imageView.layer.addSublayer(subTitleLayer)
新字体是正确的,但它总是与titleFont一样大小(16).如何更改字体大小？
看一下关于CATextLayer
font property的这个说明
原文链接：https://www.f2er.com/swift/319276.htmlIf the font property is a CTFontRef,a CGFontRef,or an instance
of NSFont,the font size of the property is ignored.
它清楚地解释了CTFontRef的字体大小被忽略.要解决您的问题,您必须显式设置CATextLayer的fontSize属性
titleLayer.fontSize = 16 subTitleLayer.fontSize = 10
