导航栏标题字体大小 [英] Navigation Bar Title Font Size

问题描述

我需要在iPhone应用中更改一个视图控制器的导航栏标题文本的大小。我正在使用iOS5，并尝试了以下代码：

  if（[self.tabBarItem respondsToSelector：@selector（setTitleTextAttributes :) ]）{
 NSLog（@***支持方法（iOS 5）：setTitleTextAttributes：）; 
 [self.tabBarItem setTitleTextAttributes：[NSDictionary dictionaryWithObjectsAndKeys：
 [UIFont fontWithName：@AmericanTypewritersize：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。

解决方案

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类参考和自定义UINavigationBar部分。

更好地理解你的问题：你有什么类型的控制器？ / p>

编辑

  [self.navigationController .navigationBar setTitleTextAttributes：...]; 
  

如果您在推送中访问 navigationController 控制器。

  [navigationController.navigationBar setTitleTextAttributes：...]; 
  

如果 navigationController 是您当前的的UINavigationController 。例如，如果您有以下代码，则可以使用此选项：

  UINavigationController * navigationController = ...; 
 [navigationController.navigationBar setTitleTextAttributes：...]; 
  

I need to change the size of the Navigation Bar title text for one view controller in my iPhone app. I'm using iOS5, and tried the following code:

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]];
}

However this only applies to the tabBarItem.

解决方案

You need to grab the navigation bar property and the use @property(nonatomic, copy) NSDictionary *titleTextAttributes.

For further info see UINavigationBar Class Reference and Customizing UINavigationBar section.

To understand better your question: What type of controller do you have?

EDIT

[self.navigationController.navigationBar setTitleTextAttributes:...];

if you access the navigationController within a pushed controller.

[navigationController.navigationBar setTitleTextAttributes:...];

if navigationController is your current UINavigationController. This could be used when for example if you have the following code:

UINavigationController* navigationController = ...;
[navigationController.navigationBar setTitleTextAttributes:...];

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