iOS字体大小适配
#define MyUIScreen 375 // UI设计原型图的手机尺寸宽度(6), 6p的--414
UIFont+runtime.m
#import"UIFont+runtime.h"
#import
@implementationUIFont(runtime)
+ (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,交换两个方法的IMP指针,(IMP代表了方法的具体的实现)
method_exchangeImplementations(newMethod, method);
}
+ (UIFont *)adjustFont:(CGFloat)fontSize {
UIFont *newFont = nil;
newFont = [UIFont adjustFont:fontSize * [UIScreen mainScreen].bounds.size.width/MyUIScreen];
return newFont;
}
@end
UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(0, 150, [UIScreen mainScreen].bounds.size.width, 60)];
label.text = @"iOS字体大小适配";
label.font = [UIFont systemFontOfSize:16];
[self.view addSubview:label];