Swift: Adding text to image does not work - ios

Question

I'm trying to edit an image by adding text to it, but the code I got from this post does not work: How to write text on image in Objective-C (iOS)?
My image-editing code looks like this:
func addTextToImage(image:UIImage, text:NSString, pointof: CGPoint) -> UIImage{
let font:UIFont = UIFont.boldSystemFontOfSize(12)
let dict:NSDictionary = [NSFontAttributeName : font]
UIGraphicsBeginImageContext(image.size)
image.drawInRect(CGRectMake(0, 0, image.size.width, image.size.height))
let rect: CGRect = CGRectMake(pointof.x, pointof.y, image.size.width, image.size.height)
let color: UIColor = UIColor.whiteColor()
text.drawInRect(CGRectIntegral(rect), withAttributes:dict)
let newImage:UIImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return newImage
}
And then I use the textViewDidChange method to add the text to the image, but it does not work:
func textViewDidChange(textView: UITextView){
backgroundImage.image = addTextToImage(imageToView, text: textViewer.text, pointof: CGPointMake(0, 0))
}
Any suggestions on what I'm doing wrong would be appreciated.

Answer 1

func addTextToImage(drawText text: NSString, inImage image: UIImage, atPoint point: CGPoint) -> UIImage
{
let textColor = UIColor.blue
let textFont = UIFont(name: "ChalkboardSE-Regular", size: 26)!
let scale = UIScreen.main.scale
UIGraphicsBeginImageContextWithOptions(image.size, false, scale)
let textFontAttributes = [
NSFontAttributeName: textFont,
NSForegroundColorAttributeName: textColor,
] as [String : Any]
image.draw(in: CGRect(origin: CGPoint.zero, size: image.size))
let rect = CGRect(origin: point, size: image.size)
text.draw(in: rect, withAttributes: textFontAttributes)
let newImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return newImage!
}