导航栏 Headers 字体大小-Java 学习之路

我需要在我的iPhone应用程序中更改一个视图控制器的导航栏 Headers 文本的大小 . 我正在使用iOS5，并尝试了以下代码：

if ([self.tabBarItem respondsToSelector:@selector(setTitleTextAttributes:)]) {
    NSLog(@"*** Support method(iOS 5): setTitleTextAttributes:");
    [self.tabBarItem setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:
                                                [UIFont fontWithName:@"AmericanTypewriter" size:20.0f], UITextAttributeFont,
                                                [UIColor blackColor], UITextAttributeTextColor,
                                                [UIColor grayColor], UITextAttributeTextShadowColor,
                                                [NSValue valueWithUIOffset:UIOffsetMake(0.0f, 1.0f)], UITextAttributeTextShadowOffset,
                                                nil]];
}

但是这仅适用于tabBarItem .

5 回答

25
您需要获取导航栏属性并使用 @property(nonatomic, copy) NSDictionary *titleTextAttributes .

有关详细信息，请参阅UINavigationBar Class Reference和Customizing UINavigationBar section .

更好地理解您的问题：您拥有什么类型的控制器？

EDIT
```
[self.navigationController.navigationBar setTitleTextAttributes:...];
```
如果您在推送的控制器中访问 navigationController .
```
[navigationController.navigationBar setTitleTextAttributes:...];
```
如果 navigationController 是你当前的 UINavigationController . 例如，如果您有以下代码，则可以使用此选项：
```
UINavigationController* navigationController = ...;
[navigationController.navigationBar setTitleTextAttributes:...];
```
回复于 2024-05-06T02:14:18+08:00

你已经得到了它，但你也可以使用以下属性方法 .

For Color,

NSDictionary *attributes=[NSDictionary dictionaryWithObjectsAndKeys:[UIColor RedColor],UITextAttributeTextColor, nil];

self.navigationController.navigationBar.titleTextAttributes = attributes;

For Size,

NSDictionary *size = [NSDictionary dictionaryWithObjectsAndKeys:[UIFont fontWithName:@"Arial" size:17.0],UITextAttributeFont, nil];

self.navigationController.navigationBar.titleTextAttributes = size;

谢谢 .

适用于iOS 7及更高版本

For Size:

NSDictionary *size = [NSDictionary dictionaryWithObjectsAndKeys:[UIFont fontWithName:@"Arial" size:17.0],NSFontAttributeName, nil];

self.navigationController.navigationBar.titleTextAttributes = size;

回复于 2024-05-06T02:14:18+08:00

10
从iOS7开始，我总是这样做：
```
[[UINavigationBar appearance] setTitleTextAttributes:
    [NSDictionary dictionaryWithObjectsAndKeys:
        [UIFont fontWithName:@"Helvetica-Bold" size:18.0],NSFontAttributeName,
        nil]];
```
关键字 UITextAttributeFont 已经从iOS7中被压抑了，你应该用 NSFontAttributeName 替换 .

您可以使用 [self.navigationController.navigationBar setTitleTextAttributes:] 来设置某个navigationController的外观，而 [UINavigationBar appearance] setTitleTextAttributes:] 可以直接用于您的整个应用程序 . （当然您需要将它放在属性位置 . ）
回复于 2024-05-06T02:14:18+08:00

Swift 2.0:

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
        UINavigationBar.appearance().titleTextAttributes = [
            NSFontAttributeName: UIFont(name: "DINNextLTW04-Regular", size: 20)!
        ]

        return true
    }

要么

override func viewDidLoad() {
  super.viewDidLoad()

  self.navigationController?.navigationBarHidden =  false
  self.title = "SAMPLE"

//Set Color
  let attributes: AnyObject = [ NSForegroundColorAttributeName: UIColor.redColor()]
  self.navigationController!.navigationBar.titleTextAttributes = attributes as? [String : AnyObject]


//Set Font Size
  self.navigationController!.navigationBar.titleTextAttributes = [NSFontAttributeName: UIFont(name: "Arial", size: 37.0)!];

 }

回复于 2024-05-06T02:14:18+08:00

我的例子

guard let sansLightFont = UIFont(name: "OpenSans", size: 20) else { return }
navigationController?.navigationBar.titleTextAttributes = [NSFontAttributeName : sansLightFont]

回复于 2024-05-06T02:14:18+08:00

导航栏 Headers 字体大小

5 回答

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