xcode - NSMutableAttributedString设置字体大小

Question

我为此遇到的所有资源都适用于iOS。我似乎无法在Mac OSX上正常工作。任何想法如何使它也设置字体大小吗？当前，它可以正确设置颜色和中心对齐方式。谢谢

NSMutableAttributedString *libTitle = [[NSMutableAttributedString alloc] initWithString:@"Library"];
[libTitle addAttribute:NSForegroundColorAttributeName value:[NSColor whiteColor] range:NSMakeRange(0,[@"Library" length] ) ];
[libTitle setAlignment:NSCenterTextAlignment range:NSMakeRange(0, [@"Library" length])];
[libTitle addAttribute:NSFontSizeAttribute value:[NSFont systemFontOfSize:18.0] range:NSMakeRange(0, [@"Library" length])];

[self.libbtn setAttributedTitle:libTitle];

Answer 1

尝试使用init方法从一开始就设置字体属性:

NSFont *systemFont = [NSFont systemFontOfSize:18.0f];
NSDictionary * fontAttributes = [[NSDictionary alloc] initWithObjectsAndKeys:systemFont, NSFontAttributeName, nil];
NSMutableAttributedString *libTitle = [[NSMutableAttributedString alloc] initWithString:@"Library" attributes:fontAttributes];
NSRange rangeOfTitle = NSMakeRange(0,[libTitle length]);
[libTitle addAttribute:NSForegroundColorAttributeName value:[NSColor whiteColor] range:rangeOfTitle];
[libTitle setAlignment:NSCenterTextAlignment range:rangeOfTitle];

[self.libbtn setAttributedTitle:libTitle];