如何在UIBarButtonItem上设置字体大小？

Question

我找不到在自定义UIBarButtonItem中设置标题字体大小的方法.我能想到解决这个问题的唯一方法是将其设置为我想避免的图像.还有其他建议吗？

Answer 1

简单来说,简单地说:

Objective-C的:

NSUInteger fontSize = 20;
UIFont *font = [UIFont boldSystemFontOfSize:fontSize];
NSDictionary *attributes = @{NSFontAttributeName: font};

UIBarButtonItem *item = [[UIBarButtonItem alloc] init];

[item setTitle:@"Some Text"];
[item setTitleTextAttributes:attributes forState:UIControlStateNormal];

self.navigationItem.rightBarButtonItem = item;

迅速:

let fontSize:CGFloat = 20;
let font:UIFont = UIFont.boldSystemFont(ofSize: fontSize);
let attributes:[String : Any] = [NSFontAttributeName: font];

let item = UIBarButtonItem.init();

item.title = "Some Text";
item.setTitleTextAttributes(attributes, for: UIControlState.normal);

self.navigationItem.rightBarButtonItem = item;

Answer 2

创建 UILabel 并使用-initWithCustomView:.