List all fonts and styles available on an iOS device.

ListFonts.m

- (void) listFonts {
    NSArray *familyNames = [UIFont familyNames];
    for (NSString *family in familyNames) {
        NSLog(@"family:    %@", family);
        NSArray *styles = [UIFont fontNamesForFamilyName:family];
        for (NSString *style in styles) {
            NSLog(@"                - %@", style);
        }
    }
}