[英]How to customize navigation bar title font and size in UINavigationBar?
I want to customize only a specific part of the navigation bar title.我只想自定义导航栏标题的特定部分。
For example, "Navigation Bar Title."例如,“导航栏标题”。 I made this sentence a title.
我把这句话当成了标题。
In the case of "Navigation", apply blue color and system bold font, For "Bar Title."在“导航”的情况下,应用蓝色和系统粗体字体,对于“栏标题”。 I want to apply red color and system regular fonts.
我想应用红色和系统常规字体。
How is it possible?这怎么可能?
You should use a UILabel
with an attributed title as a custom title view for your navigation bar.您应该使用带有属性标题的
UILabel
作为导航栏的自定义标题视图。
let titleLabel = UILabel()
//attributes for the first part of the string
let firstAttr: [NSAttributedString.Key: Any] = [.font: UIFont.boldSystemFont(ofSize: 16),
.foregroundColor: UIColor.blue]
//attributes for the second part of the string
let secondAttr: [NSAttributedString.Key: Any] = [.font: UIFont.systemFont(ofSize: 16),
.foregroundColor: UIColor.red]
//initializing and merging the two parts
let attrString = NSMutableAttributedString(string: "Navigation", attributes: firstAttr)
let secondAttrString = NSAttributedString(string: " Bar Title", attributes: secondAttr)
attrString.append(secondAttrString)
//setting the attributed string as an attributed text
titleLabel.attributedText = attrString
//set the size of the label to fit its contents
titleLabel.sizeToFit()
//setting the label as the title view of the navigation bar
navigationItem.titleView = titleLabel
Result:结果:
try this
NSDictionary *settings = @{
UITextAttributeFont : [UIFont fontWithName:@"YOURFONTNAME" size:20.0],
UITextAttributeTextColor : [UIColor whiteColor],
UITextAttributeTextShadowColor : [UIColor clearColor],
UITextAttributeTextShadowOffset : [NSValue valueWithUIOffset:UIOffsetZero]};
[[UINavigationBar appearance] setTitleTextAttributes:settings];
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