How do I append two attributed strings with different fonts? - ios

Question

Here I have tried to append two attributed strings in a single UILabel but I made some mistake so any one can find my mistake please?
let textFontAttributes = [
NSFontAttributeName : font,
// Note: SKColor.whiteColor().CGColor breaks this
NSForegroundColorAttributeName: UIColor.whiteColor(),
NSStrokeColorAttributeName: UIColor.blackColor(),
// Note: Use negative value here if you want foreground color to show
NSStrokeWidthAttributeName: -8]

Answer 1

This is the demo, you can have a try, In fact, you should provide more info of what the wrong is or what the error is.
var firstString = "Hello" as NSString
var secondString = " World" as NSString
var totalString = firstString.stringByAppendingString(secondString as String) as NSString
let firsttAttributes = [
NSFontAttributeName : UIFont.systemFontOfSize(16),
// Note: SKColor.whiteColor().CGColor breaks this
NSForegroundColorAttributeName: UIColor.whiteColor(),
NSStrokeColorAttributeName: UIColor.blackColor(),
// Note: Use negative value here if you want foreground color to show
NSStrokeWidthAttributeName: -8]
let secondAttributes = [
NSFontAttributeName : UIFont.systemFontOfSize(12),
// Note: SKColor.whiteColor().CGColor breaks this
NSForegroundColorAttributeName: UIColor.redColor(),
NSStrokeColorAttributeName: UIColor.blackColor(),
// Note: Use negative value here if you want foreground color to show
NSStrokeWidthAttributeName: -8]
var attributedString = NSMutableAttributedString(string: totalString as String, attributes: firsttAttributes)
var secondRange = totalString.rangeOfString(secondString as String)
if secondRange.location != NSNotFound {
attributedString.addAttributes(secondAttributes, range: secondRange)
}