如何在swift中使用NSWritingDirectionAttributeName？

Question

如何在swift中使用NSWritingDirectionAttributeName？

我在Obj-c中有这段代码：

attrString = [[NSMutableAttributedString alloc] initWithString:title attributes:@{NSFontAttributeName:[UIFont fontAwesomeFontOfSize:24], NSForegroundColorAttributeName:kHJColorIcon, NSWritingDirectionAttributeName:@[@(NSWritingDirectionRightToLeft | NSTextWritingDirectionOverride)]}];

效果很好！

现在我需要在另一个地方使用相同的代码，但语言很快。

我尝试了几种方法但是我遇到了错误。

Answer 1

键NSWritingDirectionAttributeName需要数值，因此请使用原始值

[NSWritingDirectionAttributeName : [NSWritingDirection.LeftToRight.rawValue | NSTextWritingDirection.Override.rawValue]]

Answer 2

键NSWritingDirectionAttributeName需要数字值，因此在您的函数中使用rawValue，请尝试此操作

let attrString = NSMutableAttributedString(string: "Karthik Test",
                 attributes: [NSFontAttributeName: UIFont.systemFontOfSize(24),
                              NSWritingDirectionAttributeName:[NSWritingDirection.RightToLeft.rawValue |
                                                               NSTextWritingDirection.Override.rawValue]])