@IBAction func SubmitAction(sender: AnyObject) { generatePopupAlert() } func generatePopupAlert() { var attributedMessage = convertToAttributedString("Do you want to delete line ", bold1: lineNum, normal2: ", Click OK to confirm!", bold2: "", normal3: "", size: 14.0) myAlertController("",messageStr: attributedMessage) } func myAlertController(titleStr: String, messageStr: NSMutableAttributedString, selectedVendorId:String) { var alertController = UIAlertController(title: titleStr, message: "", preferredStyle: .Alert) alertController.setValue(titleStr, forKey: "attributedTitle") alertController.setValue(messageStr, forKey: "attributedMessage") var cancelAction = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Cancel) { UIAlertAction in var okAction = UIAlertAction(title: "OK", style: UIAlertActionStyle.Default) { UIAlertAction in self.sendRequest() } alertController.addAction(cancelAction) alertController.addAction(okAction) self.presentViewController(alertController, animated: true, completion: nil) } } func convertToAttributedString(normal1: String, bold1: String, normal2: String, bold2: String, normal3:String, size: CGFloat) -> NSMutableAttributedString { var combined = normal1 + bold1 + normal2 + bold2 + normal3 var attrStr = NSMutableAttributedString(data: combined.dataUsingEncoding(NSUTF8StringEncoding)!, options: nil, documentAttributes: nil, error: nil) attrStr?.addAttribute(NSFontAttributeName, value: UIFont.systemFontOfSize(size), range: NSRange(location: 0,length: countElements(normal1))) attrStr?.addAttribute(NSFontAttributeName, value: UIFont.boldSystemFontOfSize(size), range: NSRange(location:countElements(normal1),length: countElements(bold1))) attrStr?.addAttribute(NSFontAttributeName, value: UIFont.systemFontOfSize(size), range: NSRange(location: countElements(normal1 + bold1),length: countElements(normal2))) attrStr?.addAttribute(NSFontAttributeName, value: UIFont.boldSystemFontOfSize(size), range: NSRange(location: countElements(normal1 + bold1 + normal2),length: countElements(bold2))) attrStr?.addAttribute(NSFontAttributeName, value: UIFont.systemFontOfSize(size), range: NSRange(location: countElements(normal1 + bold1 + normal2 + bold2),length: countElements(normal3))) if attrStr == nil { NSLog("Error") } return attrStr! } References UIAlertController custom font, size, color How to use NSKeyValueCoding protocol while designing data models? Key-Value Prgramming Guide from Apple Please enable JavaScript to view the comments powered by Disqus.