Question

Is there appeared easy way to underline text in iOS 4 ?? In IB maybe ? Thanks in advance…

Answer 1

As far as I know you cannot underline text.

You can “fake” it though by (for example) placing an UImageView or a regular View just underneath with the same color as your text. You can use strike-through etc, but cannot underline.

Edit:
You could use this approach to underline your UILabel though. You could namely use a custom UILabel. So you could create some class like CUILabel that inherits UILabel and replace its drawRect method in the @implementation section with the following:

- (void)drawRect:(CGRect)rect {
  CGContextRef ctx = UIGraphicsGetCurrentContext();
  CGContextSetRGBStrokeColor(ctx, 0.0f/255.0f, 0.0f/255.0f, 255.0f/255.0f, 1.0f); // Your underline color
  CGContextSetLineWidth(ctx, 1.0f);

  UIFont *font = [UIFont systemFontOfSize:16.0f];
  CGSize constraintSize = CGSizeMake(MAXFLOAT, MAXFLOAT);
  CGSize labelSize;
  labelSize = [self.text sizeWithFont:font constrainedToSize:constraintSize lineBreakMode:UILineBreakModeWordWrap];  

  CGContextMoveToPoint(ctx, 0, self.bounds.size.height - 1);
  CGContextAddLineToPoint(ctx, labelSize.width + 10, self.bounds.size.height - 1);

  CGContextStrokePath(ctx);

  [super drawRect:rect];  
}