在IOS开发中，经常需要使用到UIFont类,那么我们就来对这些系统提供的类进行一些简易的封装，来更一步的简化使用它们。

给UIFont添加一个Category

//
//  UIFont+Fonts.h
//  POP动画
//
//  Created by 键盘上的舞者 on 10/20/16.
//  Copyright © 2016 键盘上的舞者. All rights reserved.
//

#import <UIKit/UIKit.h>

@interface UIFont (Fonts)

#pragma mark - Added font.

/**
 *  HYQiHei-BEJF font (added by plist).
 *
 *  @param size Font's size.
 *
 *  @return Font.
 */
+ (UIFont *)HYQiHeiWithFontSize:(CGFloat)size;

#pragma mark - System font.

/**
 *  AppleSDGothicNeo-Thin font.
 *
 *  @param size Font's size.
 *
 *  @return Font.
 */
+ (UIFont *)AppleSDGothicNeoThinWithFontSize:(CGFloat)size;

/**
 *  Avenir font.
 *
 *  @param size Font's size.
 *
 *  @return Font.
 */
+ (UIFont *)AvenirWithFontSize:(CGFloat)size;

/**
 *  Avenir-Light font.
 *
 *  @param size Font's size.
 *
 *  @return Font.
 */
+ (UIFont *)AvenirLightWithFontSize:(CGFloat)size;

/**
 *  Heiti SC font.
 *
 *  @param size Font's size.
 *
 *  @return Font.
 */
+ (UIFont *)HeitiSCWithFontSize:(CGFloat)size;

/**
 *  HelveticaNeue font.
 *
 *  @param size Font's size.
 *
 *  @return Font.
 */
+ (UIFont *)HelveticaNeueFontSize:(CGFloat)size;

/**
 *  HelveticaNeue-Bold font.
 *
 *  @param size Font's size.
 *
 *  @return Font.
 */
+ (UIFont *)HelveticaNeueBoldFontSize:(CGFloat)size;

@end

//
//  UIFont+Fonts.m
//  POP动画
//
//  Created by 键盘上的舞者 on 10/20/16.
//  Copyright © 2016 键盘上的舞者. All rights reserved.
//

#import "UIFont+Fonts.h"

@implementation UIFont (Fonts)

#pragma mark - Added font.

+ (UIFont *)HYQiHeiWithFontSize:(CGFloat)size {
    
    return [UIFont fontWithName:@"HYQiHei-BEJF" size:size];
}

#pragma mark - System font.

+ (UIFont *)AppleSDGothicNeoThinWithFontSize:(CGFloat)size {
    
    return [UIFont fontWithName:@"AppleSDGothicNeo-Thin" size:size];
}

+ (UIFont *)AvenirWithFontSize:(CGFloat)size {
    
    return [UIFont fontWithName:@"Avenir" size:size];
}

+ (UIFont *)AvenirLightWithFontSize:(CGFloat)size {
    
    return [UIFont fontWithName:@"Avenir-Light" size:size];
}

+ (UIFont *)HeitiSCWithFontSize:(CGFloat)size {
    
    return [UIFont fontWithName:@"Heiti SC" size:size];
}

+ (UIFont *)HelveticaNeueFontSize:(CGFloat)size {
    
    return [UIFont fontWithName:@"HelveticaNeue" size:size];
}

+ (UIFont *)HelveticaNeueBoldFontSize:(CGFloat)size {
    
    return [UIFont fontWithName:@"HelveticaNeue-Bold" size:size];
}


@end