How to display HTML text in TextView

Question

I have a string containing HTML. I would like to display the HTML in a TextView control. I found some code and tried it:

def = "some html text"

definition.attributedText = NSAttributedString(
  data: def.dataUsingEncoding(NSUnicodeStringEncoding, allowLossyConversion: true)!,
  options: [ NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType],
      documentAttributes: nil,
      error: nil)

On the option I get an error:

[String: String] is not convertible to string.

Can someone help me display HTML in a TextView?

Answer 1

This works for me. Remember that the NSAttributedString constructor now throws an NSError object:

Swift 3:

do {
    let str = try NSAttributedString(data: def.data(using: String.Encoding.unicode, allowLossyConversion: true)!, options: [NSDocumentTypeDocumentAttribute : NSHTMLTextDocumentType], documentAttributes: nil)
} catch {
    print(error)
}

Swift 2.x:

do {
    let str = try NSAttributedString(data: def.dataUsingEncoding(NSUnicodeStringEncoding, allowLossyConversion: true)!, options: [NSDocumentTypeDocumentAttribute : NSHTMLTextDocumentType], documentAttributes: nil)
} catch {
    print(error)
}