# FontChange runtime 字体改变工程下载地址
iOS FontChange
iOS 利用runtime 实现全局字体的改变
创建UIFont的类别
UIFont+GHFont.h,UIFont+GHFont.m
+ (void)load{
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
/*利用runtime 实现当调用系统systemFontOfSize:获取字体的时候，调用指定的方法ghFontOfSize 从而重新设置字体*/
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];
}
