How to make a text to fade out and only get some letters and create a new word in swift?

Question

I am trying to make a launch splash screen for my iOS project. I want to show my service full name and then just get the first letters of each word with the other words getting faded away.

For example

Service Involvement Expenditure - > Intially

S I E -> Letters to be displayed after other texts fade away.

Please help me to make something like the above gif ?

Answer 1

You have to split the text and then fetch the first character of each substring just like that

var YourString: String = "Service Involvement Expenditure"
let sunstringArray = YourString.componentsSeparatedByString(" ")

var firstString: String = sunstringArray [0]    //Service 
var secondString: String = sunstringArray [1]   //Involvement 
var thirdString: String = sunstringArray [2]    //Expenditure

now to get only the first charcter use below code

 var firstletter = String(firstString.characters.first!)    //S
  var secondletter = String(secondString.characters.first!)    //I
  var thirdletter = String(thirdString.characters.first!)    //E

var fullFirstChar = firstletter + secondletter + thirdletter //SIE

 UIView.animate(withDuration: 2.0, delay: 0.0, options: UIViewAnimationOptions.curveEaseOut, animations: {
                            self.fullFirstChar .alpha = 1.0
                        },
                                       completion: {

                                        (finished: Bool) -> Void in

                                    // Fade out
                                    UIView.animate(withDuration: 2.0, delay: 0.0, options: UIViewAnimationOptions.curveEaseIn, animations: {
                                        self.fullFirstChar .alpha = 0.0
                                    },
                                                   completion: {(finished: Bool) -> Void in
                                                    AppInfo.instance.isAnimationCompleted = true
                                    })
                    })

i hope this will help