Can't change custom UIFont size on the UIButton

Seems like your UIFont object isn't getting created correctly and is returning nil.

This is the best tutorial I have found on putting in custom fonts. Good luck ;)

http://refactr.com/blog/2012/09/ios-tips-custom-fonts/ (Archived Version)

Do this:

    NSMutableDictionary *fontsByFamilyName = [NSMutableDictionary dictionary];
    NSArray *sortDescriptors = [NSArray arrayWithObject:[[[NSSortDescriptor alloc] initWithKey:@"self" ascending:YES] autorelease]];

    NSArray *familyNames = [[UIFont familyNames] sortedArrayUsingDescriptors:sortDescriptors];
    for (NSString *aFamilyName in familyNames) {
        NSArray *fontNames = [[UIFont fontNamesForFamilyName:aFamilyName] sortedArrayUsingDescriptors:sortDescriptors];

        [fontsByFamilyName setObject:fontNames forKey:aFamilyName];
        NSLog(@"fonts :%@", fontsByFamilyName);           
    }

Look for the "iOS" name of your font... I found my cusom ones with this method. If you don't, let's check how you added your font (maybe a action forgotten). Source: http://forgecode.net/2010/08/uifont-name-grabber/

To get the font name you have to pass in fontWithName:size:, open your font with Font Book app, then look up for the PostScript name property. Make shure you have added it to Info.plist file too.