# FontChange ?runtime 字體改變工程下載地址

iOS FontChange

iOS 利用runtime 實現(xiàn)全局字體的改變

創(chuàng)建UIFont的類別

UIFont+GHFont.h,UIFont+GHFont.m

+ (void)load{

static dispatch_once_t onceToken;

dispatch_once(&onceToken, ^{

/*利用runtime 實現(xiàn)當(dāng)調(diào)用系統(tǒng)systemFontOfSize:獲取字體的時候，調(diào)用指定的方法ghFontOfSize 從而重新設(shè)置字體*/

kDefultFontName_GH = [UIFont systemFontOfSize:10].fontName;

Class class = [self class];

Method originalMethod = class_getClassMethod(class, @selector(systemFontOfSize:));

Method swizzledMethod = class_getClassMethod(class, @selector(ghFontOfSize:));

method_exchangeImplementations(originalMethod, swizzledMethod);

});

}

+ (UIFont *)ghFontOfSize:(CGFloat)fontSize {

GHFontManager *manager = [GHFontManager sharedFontManager];

NSString *fontName = manager.fontName;

if (fontName == nil) {

fontName = kDefultFontName_GH;

}

return [UIFont fontWithName:fontName? size:fontSize];

}