Views and subviews - xcode

Question

I'm trying to put a view with subviews. The view has an image and a text, which are subviews, but when i run the app, it doesn't show the complete text. Here is the code…
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
let ballonview = UIImageView()
let label = UILabel()
let turn = 1
ballonview.frame = CGRectZero
label.frame = CGRectZero
label.backgroundColor = UIColor.clearColor()
label.numberOfLines = 0
label.lineBreakMode = NSLineBreakMode.ByWordWrapping
label.font = label.font.fontWithSize(20)
let message = UIView()
message.frame = CGRectMake(-160, 48, view.frame.size.width, view.frame.size.height)
message.addSubview(ballonview)
message.addSubview(label)
let text: NSString = "hola como estas"
let size:CGSize = text.boundingRectWithSize(CGSizeMake(240.0, 480.0), options: NSStringDrawingOptions.UsesDeviceMetrics, attributes: [NSFontAttributeName: UIFont.systemFontOfSize(14.0)], context: nil).size
var ballon:UIImage = UIImage()
ballonview.frame = CGRectMake(320.0 - (size.width + 28.0), 2.0, size.width + 28.0, size.height + 15.0)
ballon = UIImage(named:"green.png")!.stretchableImageWithLeftCapWidth(24, topCapHeight: 15)
label.frame = CGRectMake(307.0 - (size.width + 5.0), 8.0, size.width + 5.0, size.height)
ballonview.image = ballon;
label.text = text as String
view.addSubview(message)
}
What can I do?

Answer 1

The problem here is that you are using different font sizes when measuring the size and rendering.
The font of label is 20pt system font, and the font you use for measuring size is 14pt system font. So the size will be smaller than you expected.
Also, the drawing options should be changed to NSStringDrawingUsesLineFragmentOrigin in order to get the correct size if you have characters with long legs (like g, j, y).
Reference: official NSString document.
I'd suggest you change the way you measure the size:
let size: CGSize = text.boundingRectWithSize(
CGSizeMake(240.0, 480.0),
options: .UsesLineFragmentOrigin,
attributes: [
NSFontAttributeName: label.font
],
context: nil
).size
So it will match the font you use for rendering the label.
I hope this answer helps you.