ios app全局字体设置

方法一：

写一个UILabel(FontExtension)扩展

重写initWithFrame(手写代码必走方法)和awakeFromNib(xib必走方法)

当然UIButton、UITextView等控件都可以用这种方式

//

// UILabel+FontExtension.h

// FontSet

//

// Created by 张齐朴 on 15/1/27.

// Copyright © 2015年 张齐朴. All rights reserved.

//

#import <UIKit/UIKit.h>

@interface UILabel (FontExtension)

@end

//

// UILabel+FontExtension.m

// FontSet

//

// Created by 张齐朴 on 15/1/27.

// Copyright © 2015年 张齐朴. All rights reserved.

//

#import "UILabel+FontExtension.h"

#define kGlobalFontFamilyName @"Snell Roundhand" // 全局字体名称

@implementation UILabel (FontExtension)

- (instancetype)initWithFrame:(CGRect)frame

{

if (self = [super initWithFrame:frame]) {

[self setGlobalFont];

}

return self;

}

- (void)awakeFromNib

{

[super awakeFromNib];

[self setGlobalFont];

}

- (void)setGlobalFont

{

[self setFont:[UIFont fontWithName:kGlobalFontFamilyName size:17]];

}

@end

方法二：

写一个基类(比如FontViewController)继承UIViewController

重写viewWillLayourtSubviews

- (void)viewWillLayoutSubviews

{

[self setFontFamily:@"Microsoft YaHei" forView:self.view andSubViews:YES];

}

// 遍历self.view 中所有的UILabel设置其字体

- (void)setFontFamily:(NSString*)fontFamily forView:(UIView*)view andSubViews:(BOOL)isSubViews

{

if ([view isKindOfClass:[UILabel class]])

{

UILabel *lbl = (UILabel *)view;

[lbl setFont:[UIFont fontWithName:fontFamily size:[[lbl font] pointSize]-2]];

}

if (isSubViews)

{

for (UIView *sview in view.subviews)

{

[self setFontFamily:fontFamily forView:sview andSubViews:YES];

}

}

}