我使用Xcode 6.1 GM遇到了奇怪的问题。
let text: NSString = "A"
let font = NSFont(name: "Helvetica Bold", size: 14.0)
let textRect: NSRect = NSMakeRect(5, 3, 125, 18)
let textStyle = NSMutableParagraphStyle.defaultParagraphStyle().mutableCopy() as NSMutableParagraphStyle
textStyle.alignment = NSTextAlignment.LeftTextAlignment
let textColor = NSColor(calibratedRed: 0.147, green: 0.222, blue: 0.162, alpha: 1.0)
let textFontAttributes = [
NSFontAttributeName: font,
NSForegroundColorAttributeName: textColor,
NSParagraphStyleAttributeName: textStyle
]
text.drawInRect(NSOffsetRect(textRect, 0, 1), withAttributes: textFontAttributes)
错误在行 let texFontAttributes...
Cannot convert the expression's type 'Dictionary' to type 'DictionaryLiteralConvertible'
这段代码在 Xcode 6.1 GM 之前可以完美运行。当我试图将 textFontAttributes 声明为 NSDictionary 后,错误信息发生了变化:
Cannot convert the expression's type 'NSDictionary' to type 'NSString!'
我不知道怎么解决这个问题 :(
drawAtPoint:withAttributes:
、drawInRect:withAttributes:
、drawWithRect:options:attributes:
、sizeWithAttributes:
和boundingRectWithSize:options:attributes:
在 Swift 中“不可用”。 - JDS