calling function from an array with time delay - swift

Question

Let's say I have this array of functions:
lazy var funcArray = [firstFunc, secondFunc, thirdFunc, ....n+Func, ...Inifinit number of Func........]
How would you call them one after the other with a 2.5 second delay?
I have tried without success many things including this while loop:
while n < funcArray.count {
funcArray[n]()
DispatchQueue.main.asyncAfter(deadline: .now() + 2.5) {
n = n +1
}
}

Answer 1

i write small code for better understanding.
initialize count and funcTimer variable and created static function array .
var count:Int = 0
var funcTimer = Timer()
let funcArray:Array = [somefunc(),somefunc(),somefunc()]
After that add these line in appropriate place
funcTimer = Timer.scheduledTimer(timeInterval: 2.5, target: self, selector: (#selector(ViewController.scheduleArrayFunctions)), userInfo: nil, repeats: true)
#objc func scheduleArrayFunctions(funcarray:[ String])
{
if count < self.funcArray.count {
//this if is interesting checking both static function when it check it call the somefunc method
if self.funcArray[count] == ViewController.somefunc(){
print("equel")
}
self.count += 1
}
else
{
funcTimer.invalidate()
}
}
func somefunc()
{
print("hello world")
}
Hope so this will work for you.

Answer 2

I think this will work. Follow these steps.
Declare a variable count as zero.
Schedule a timer with time interval 2.5 and repeat to true.
Now call the function from the array with index as count inside the timer callback block.
Check if the count is less than array.count.
Increment the count.
Otherwise stop the timer.

Answer 3

I did a function to function loop
probably bad coding but...it works
n = 0
self.funcArray[n]()
n = n + 1
timerAction()
func timerAction() {
let when = DispatchTime.now() + 2.5
DispatchQueue.main.asyncAfter(deadline: when) {
self.funcArray[self.n]()
self.n = self.n + 1
if self.n < self.funcArray.count {
self.timerAction2()
}
}
}
func timerAction2() {
let when = DispatchTime.now() + 2.5
DispatchQueue.main.asyncAfter(deadline: when) {
self.funcArray[self.n]()
}
if self.n < self.funcArray.count {
self.timerAction()
}
}