Change default font to custom fonts in whole app

Question

I want to keep custom fonts in iOS app. Currently, I'm using iOS default fonts. Is there any possible way for the same?

How do I include the custom font so that I can use it?

Answer 1

Make a category:

#import "UILabel+Helper.h"

@implementation UILabel (Helper)
- (void)setSubstituteFontName:(NSString *)name UI_APPEARANCE_SELECTOR {
     self.font = [UIFont fontWithName:name size:self.font.pointSize]; } 
@end

Then in AppDelegate.m:

[[UILabel appearance] setSubstituteFontName:@"SourceSansPro-Regular"];

This will change font in whole app even on UIButton, UILabel, inside UITableViewCell, UICollectionViewCell, UIView, UIContainerView, or anywhere in application without changing the font point size.

This is memory efficient approach rather than enumerating all views in your UIViewController.