iOS 7 中的 titleTextAttributes UIAppearance 字体 [英] titleTextAttributes UIAppearance font in iOS 7

问题描述

我正在使用 UIAppearance 将字体应用于 UINavigationBar 和 UIBarButtonItem，但我遇到了问题.我运行了这段代码:

I am using UIAppearance to apply fonts to UINavigationBar and UIBarButtonItem and I am having problems. I ran this code:

[[UIBarButtonItem appearanceWhenContainedIn:[UIToolbar class], nil] 
setTitleTextAttributes:
@{NSFontAttributeName : [UIFont fontWithName:@"My_Font" size:17.0]} 
forState:UIControlStateNormal];

NSLog(@"%@", [[UIBarButtonItem appearanceWhenContainedIn:
[UIToolbar class], nil] titleTextAttributesForState:UIControlStateNormal]);

在 iOS 7 上登录的结果是:

and the result of that log on iOS 7 is:

(null)

iOS 6 中的结果在哪里:

Where the result in iOS 6 is:

{
    NSFont = "<UICFFont: 0x1d897a80> font-family: "My_Font"; font-weight: normal; font-style: normal; font-size: 17px";
}

我在 iOS 7 文档中找不到任何表明这不可行的内容，有其他人遇到过这个问题吗?

I can't find anything in the iOS 7 docs that would indicate that this shouldn't work, has anyone else had this problem?

编辑 1

我实际上已经让它与 [UINavigationBar 外观] 一起使用，问题是我将点大小设置为 0，以便将字体设置为默认的导航栏/barButtonItem 大小作为NSString UIKit Additions 中描述参考，但这显然不再适用于 iOS 7.相反，将磅值设置为 0 将返回系统字体.

I actually have gotten this to work with [UINavigationBar appearance] the problem was that I was setting the point size to 0 in order to have the font be set to the default navbar/barButtonItem size as described in the NSString UIKit Additions Reference but this apparently no longer works in iOS 7. Instead, setting the point size to 0 will return the system font.

我仍然无法将 titleTextAttributes 设置为

I am still unable to set titleTextAttributes to

[UIBarButtonItem appearanceWhenContaintedIn:[UIToolbar class], nil]]

推荐答案

NSDictionary *attributes = [NSDictionary dictionaryWithObjectsAndKeys:[UIFont 
    fontWithName:@"YOURFONT" size:14], NSFontAttributeName, 
    [UIColor whiteColor], NSForegroundColorAttributeName, nil];

[[UINavigationBar appearance] setTitleTextAttributes:attributes];

关键是使用NSFontAttributeName等等.我假设他们正在转向使用 NS 品种以实现 64 位兼容性.以上代码适用于我的 iOS7 设备.

The key is to use NSFontAttributeName and so forth. I assume they are moving over to using the NS variety for 64-bit compatibility. The above code worked on my iOS7 device.

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