Question

我搜索了这个网站，但我发现了一些悬而未决的问题。

我已将自定义字体加载到我的xcode项目中。 [UIFont fontWithName:@"Laconic-Light" size:19]有效。但是界面构建器不喜欢该字体。我无法与IB一起使用它总是显示默认字体。有没有办法告诉IB可以使用该字体？

Answer 1

我在Xcode 4中也有这个问题。在我的程序中，有很多UILabel没有IBOutlets所以我这样做了;

首先，将UILabel继承为CustomFontLabel

然后，覆盖“awakeFromNib”方法

@implementation CustomFontLabel

- (void)awakeFromNib {
    [super awakeFromNib];
    self.font = [UIFont fontWithName:@"CustomFontName" size:self.font.pointSize];
}

@end

最后，在Interface Builder＆gt; Identity Inspector将类更改为CustomFontLabel。

Answer 2

另一个解决方案是将UILabel子类化为加载自定义字体。然后，您可以在IB中引用它，尽管您仍然看不到正确的字体。

Answer 3

我更喜欢以稍微更通用的方式执行此操作，这样您可以在Interface Builder中调整文本大小，并在运行时简单地替换字体。

我为任何UIKit元素创建一个IBCollection属性来设置字体，然后从IB连接相应的项目。

@property (strong, nonatomic) IBOutletCollection(id) NSArray *lightFontItems;
@property (strong, nonatomic) IBOutletCollection(id) NSArray *regularFontItems;

然后在我的视图中加载我使用这样的方法：

[self setFontName:@"Roboto-Light" onItemsInArray:[self lightFontItems]];
[self setFontName:@"Roboto-Regular" onItemsInArray:[self regularFontItems]];

setLightFontOnItemsInArray:方法如下所示：

+ (void)setFontName:(NSString *)fontName onItemsInArray:(NSArray *)array;
{
  [array each:^(id item) {
    if (![item respondsToSelector:@selector(setFont:)]) return;
    [item performSelector:@selector(setFont:) withObject:[UIFont fontWithName:fontName size:[[item font] pointSize]]];
  }];
}

Answer 4

您可以安装此脚本http://pitaya.ch/moarfonts/。

使用xcode 5.1.1非常适合我。

Answer 5

感谢Apple，在Xcode 6中，我们在界面构建器本身中提供了自定义字体。

将.ttf字体文件添加到您的包中
将字体名称添加到.plist文件中。
转到xib / storyboard文件，您可以看到您的字体。

Answer 6

Swizzle a Font

如果您调用UIFont类，解决方案通常很简单。我认为最好选择像Helvetica Neue这样的理智字体并覆盖它。这允许您通过拉动映射将整个项目重新置于标准中。当我意识到someone else也这样做时，我已经想出了一个实现这一目标的调酒，所以我把它捣碎了一下。由于NSHipster会告诉你调配可能很危险，但在这种情况下，考虑到UIFont API的绝对简单性，风险非常低。在我的情况下，它是为企业应用程序完成的，因此风险更低。

UIFont + CustomFont.m类别

#import <objc/runtime.h>

static NSString *const kFontMapPlist = @"FontMap";
static NSDictionary *_replacementFontDictionary = nil;



@implementation UIFont (CustomFont)


static void initializeReplacementFonts()
{
    static BOOL initialized = NO;
    if (initialized)
        return;
    initialized = YES;

    // A Plist with a Dictionary from->to font name mapping
    NSURL *replacementFontMapURL = [[NSBundle mainBundle] URLForResource:kFontMapPlist withExtension:@"plist"];
    NSDictionary *replacementFontMap = [NSDictionary dictionaryWithContentsOfURL:replacementFontMapURL];
    [UIFont setReplacementFontDictionary:replacementFontMap];
}

+ (void)load
{
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        initializeReplacementFonts();

        SEL fontWithNameSizeSelector = @selector(fontWithName:size:);
        SEL swizzledFontWithNameSizeSelector = @selector(clp_fontWithName:size:);
        SwizzleClassMethod([UIFont class], fontWithNameSizeSelector, swizzledFontWithNameSizeSelector);

        SEL fontWithDescriptorSizeSelector = @selector(fontWithDescriptor:size:);
        SEL swizzledfontWithDescriptorSelector = @selector(clp_fontWithDescriptor:size:);
        SwizzleClassMethod([UIFont class], fontWithDescriptorSizeSelector, swizzledfontWithDescriptorSelector);
    });
}

void SwizzleClassMethod(Class class, SEL originalSelector, SEL replacementSelector)
{
    Class clazz = objc_getMetaClass(class_getName(class));

    Method originalMethod = class_getClassMethod(clazz, originalSelector);
    Method replacementMethod = class_getClassMethod(clazz, replacementSelector);

    // Add method if it doesn't eixst
    BOOL didAddMethod =
    class_addMethod(clazz,
                    originalSelector,
                    method_getImplementation(replacementMethod),
                    method_getTypeEncoding(replacementMethod));


    if (didAddMethod) {
        class_replaceMethod(clazz,
                            replacementSelector,
                            method_getImplementation(originalMethod),
                            method_getTypeEncoding(originalMethod));
    } else {
        method_exchangeImplementations(originalMethod, replacementMethod);
    }
}



#pragma mark - Swizzled font by descriptor and name calls

+ (UIFont *)clp_fontWithDescriptor:(UIFontDescriptor *)descriptor size:(CGFloat)pointSize
{
    NSString *originalFontName = descriptor.fontAttributes[UIFontDescriptorNameAttribute];
    NSString *replacementFontName = _replacementFontDictionary[originalFontName];

    UIFontDescriptor *replacementFontDescriptor = descriptor;
    if (replacementFontName != nil) {
        replacementFontDescriptor = [UIFontDescriptor fontDescriptorWithFontAttributes:@{UIFontDescriptorNameAttribute: replacementFontName}];
    }

    return [self clp_fontWithDescriptor:replacementFontDescriptor size:pointSize];
}

+ (UIFont *)clp_fontWithName:(NSString *)fontName size:(CGFloat)fontSize
{
    NSString *replacementFontName = _replacementFontDictionary[fontName];
    if (replacementFontName == nil) {
        replacementFontName = fontName;
    }

    return [self clp_fontWithName:replacementFontName size:fontSize];
}



#pragma mark - Replacement Dictionary Getter and Setter

+ (NSDictionary *)replacementDictionary
{
    return _replacementFontDictionary;
}

+ (void)setReplacementFontDictionary:(NSDictionary *)replacmentFontDictionary
{
    if (replacmentFontDictionary == _replacementFontDictionary) {
        return;
    }

    _replacementFontDictionary = replacmentFontDictionary;

    // Validate font existence.
    for (NSString *originalFontName in [_replacementFontDictionary allKeys]) {
        NSString *replacementFontName = [_replacementFontDictionary objectForKey:originalFontName];
        UIFont *replacementFont = [UIFont fontWithName:replacementFontName size:10.0f];
        if (replacementFont == nil) {
            DDLogError(@"WARNING: replacement font '%@' is not available.", replacementFontName);
        }
    }
}

@end

FontMap.plist

为了简单起见，我们假装我们有一个名为CustomSans的字体。

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>HelveticaNeue-Light</key>
    <string>CustomSans-Light</string>
    <key>HelveticaNeue-LightItalic</key>
    <string>CustomSans-LightItalic</string>
    <key>HelveticaNeue-Bold</key>
    <string>CustomSans-Bold</string>
    <key>HelveticaNeue-BoldItalic</key>
    <string>CustomSans-BoldItalic</string>
</dict>
</plist>

在界面构建器中使用自定义字体

6 个答案:

Swizzle a Font

UIFont + CustomFont.m类别

FontMap.plist