Is there a way to implicitly make an button be multi-line?

Question

I want a button that is similar to this:

ONE
TWO

Where one word is over the other. However, it may be:

THREE
FOUR

Or any number, really. Is there a way with NSAttributedStrings that I can say to always have a line-break after the first word?

Answer 1

It's really not about NSAttributedString or NSString, but rather about the button itself. You may think of subclassing UIButton and overriding setTitle:forState: to automatically replace the first space with a \n.

Specifically the setTitle:forState: would look something like this

- (void)setTitle:(NSString *)title forState:(UIControlState)state {
    NSRange firstSpaceRanger = [title rangeOfString:@" "];
    if (firstSpaceRanger.location != NSNotFound) {
        title = [title stringByReplacingCharactersInRange:firstSpaceRanger withString:@"\n"];
    }
    [super setTitle:title forState:state];
}

For instance, given one two three this will produce

one
two three

In order to make the button multiline you can do, in the UIButton initializer:

self.titleLabel.lineBreakMode = NSLineBreakByWordWrapping;

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_{Yes, firstSpaceRanger is intentional. I couldn't resist.}