Underline text in a UITextView

Question

How can I underline text in a UITextView. I understand that I would need to create a subclass of UITextView, but what would go under drawRect

Answer 1

I recommend you to use CoreText. A Basic tutorial is here on raywenderlich.

Answer 2

If you want to avoid having to include CoreText, you can utilize an attributed string with this attribute:

@{NSUnderlineStyleAttributeName: @(NSUnderlineStyleSingle)}

Answer 3

textViewMessage.linkTextAttributes = @{NSForegroundColorAttributeName: [UIColor blueColor], NSUnderlineStyleAttributeName: [NSNumber numberWithInt:NSUnderlineStyleSingle]};

Answer 4

-(IBAction)underline:(id)sender
{
    NSDictionary *underlineAttribute = @{NSUnderlineStyleAttributeName: @(NSUnderlineStyleSingle)};
    texts.attributedText = [[NSAttributedString alloc] initWithString:texts.text
                                                           attributes:underlineAttribute];
}

Answer 5

To underline a text, you have to go where you can select copy, cut , delete options there are now more options like B/I/U( bold, italic, underline). Choose this option and this is it. And to unable it, choose underline option again.

Answer 6

You can't use "kCTUnderlineStyleAttributeName" or "kCTUnderlineStyleSingle" Now you must do it like this:

    NSMutableAttributedString *attString = [[NSMutableAttributedString alloc] initWithString:@"Text"];
[attString addAttribute:NSUnderlineStyleAttributeName
                  value:@(NSUnderlineStyleSingle)
                  range:(NSRange){0,[attString length]}];