代码适配
#import "UIFont+DXFont.h"
#import <objc/runtime.h>
#define MyUIScreen 375 // UI设计原型图的手机尺寸宽度(6s), 6p的--414
@implementation UIFont (DXFont)
+ (void)load{
//获取替换后的类方法
Method newMethod = class_getClassMethod([self class], @selector(adjustFont:));
//获取替换前的类方法
Method method = class_getClassMethod([self class], @selector(systemFontOfSize:));
//然后交换类方法
method_exchangeImplementations(newMethod, method);
}
// 以6s未基准(因为一般UI设计是以6s尺寸为基准设计的)的字体。在5s和6P上会根据屏幕尺寸,字体大小会相应的扩大和缩小
+ (UIFont *)adjustFont:(CGFloat)fontSize {
UIFont *newFont = nil;
newFont = [UIFont adjustFont:fontSize * [UIScreen mainScreen].bounds.size.width/MyUIScreen];
return newFont;
}
@end
xib适配
#import "UILabel+DXFont.h"
#import <objc/runtime.h>
@implementation UILabel (DXFont)
+ (void)load{
//利用running time运行池的方法在程序启动的时候把两个方法替换 适用Xib建立的label
Method imp = class_getInstanceMethod([self class], @selector(initWithCoder:));
Method myImp = class_getInstanceMethod([self class], @selector(myInitWithCoder:));
method_exchangeImplementations(imp, myImp); //交换方法
}
- (id)myInitWithCoder:(NSCoder*)aDecode{
[self myInitWithCoder:aDecode];
if (self) {
CGFloat fontSize = self.font.pointSize;
self.font = [UIFont systemFontOfSize:fontSize];
}
return self;
}
@end
#import "UIButton+DXFont.h"
#import <objc/runtime.h>
@implementation UIButton (DXFont)
+ (void)load{
//利用running time运行池的方法在程序启动的时候把两个方法替换 适用Xib建立的label
Method imp = class_getInstanceMethod([self class], @selector(initWithCoder:));
Method myImp = class_getInstanceMethod([self class], @selector(myInitWithCoder:));
method_exchangeImplementations(imp, myImp); //交换方法
}
- (id)myInitWithCoder:(NSCoder*)aDecode{
[self myInitWithCoder:aDecode];
if (self) {
CGFloat fontSize = self.titleLabel.font.pointSize;
self.titleLabel.font = [UIFont systemFontOfSize:fontSize];
}
return self;
}
@end
参考文章:
https://www.jianshu.com/p/8b8731ed84f8
https://www.jianshu.com/p/0541caf7cecb
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