1v1_7/MSYOUPAI/NewCode/UIFont+Adapt.m

//
//  UIFont+Adapt.m
//
//  Created by YoMi on 2022/6/21.
//

#import "UIFont+Adapt.h"
#import <objc/runtime.h>
@implementation UIFont (Adapt)

+(void)load{
    static dispatch_once_t onceToken;
    dispatch_once(&onceToken, ^{
        //获取系统的方法
        /** 系统字体*/
        Method OriginalSystemFont = class_getClassMethod([self class], @selector(systemFontOfSize:));
        Method NewSystemFont  = class_getClassMethod([self class], @selector(ym_systemFontOfSize:));
        method_exchangeImplementations(NewSystemFont, OriginalSystemFont);
        /** 加粗系统字体*/
        Method OriginalBoldSystemFont = class_getClassMethod([self class], @selector(boldSystemFontOfSize:));
        Method NewBoldSystemFont  = class_getClassMethod([self class], @selector(ym_boldSystemFontOfSize:));
        method_exchangeImplementations(NewBoldSystemFont, OriginalBoldSystemFont);
        /** 自定义字体*/
        Method OriginalCustomFont = class_getClassMethod([self class], @selector(fontWithName:size:));
        Method NewCustomFont  = class_getClassMethod([self class], @selector(ym_fontWithName:size:));
        method_exchangeImplementations(NewCustomFont, OriginalCustomFont);
        NSLog(@"替换字体方法中");
    });
}


+(UIFont *)ym_systemFontOfSize:(CGFloat)fontSize{
    return  [UIFont ym_systemFontOfSize:fontSize*[UIScreen mainScreen].bounds.size.width /375 ];
}

+(UIFont *)ym_boldSystemFontOfSize:(CGFloat)fontSize{
    return  [UIFont ym_boldSystemFontOfSize:fontSize*[UIScreen mainScreen].bounds.size.width /375 ];
}

+(UIFont *)ym_fontWithName:(NSString *)fontName size:(CGFloat)fontSize{
    return  [UIFont ym_fontWithName:fontName size:fontSize*[UIScreen mainScreen].bounds.size.width /375 ];
}
@end