iPhone UINavigationBar 使用 [UINavigationBar appearance] 更改所有 Controller 的字体样式

Question

我知道我可以单独更改导航栏的字体，如以下答案所述:Change the navigation bar's font

目前我正在使用更全局的方法:

//in my app delegate:
    [[UINavigationBar appearance] setBarStyle:UIBarStyleBlackTranslucent];

有没有办法通过外观对象全局更改导航栏的字体？

谢谢!

Answer 1

来自 Ray Wenderlich:

http://www.raywenderlich.com/4344/user-interface-customization-in-ios-5

// Customize the title text for *all* UINavigationBars
[[UINavigationBar appearance] setTitleTextAttributes:
[NSDictionary dictionaryWithObjectsAndKeys:
    [UIColor colorWithRed:255.0/255.0 green:255.0/255.0 blue:255.0/255.0 alpha:1.0], 
    UITextAttributeTextColor, 
    [UIColor colorWithRed:0.0 green:0.0 blue:0.0 alpha:0.8], 
    UITextAttributeTextShadowColor, 
    [NSValue valueWithUIOffset:UIOffsetMake(0, -1)], 
    UITextAttributeTextShadowOffset, 
    [UIFont fontWithName:@"Arial-Bold" size:0.0], 
    UITextAttributeFont, 
    nil]];