I need a timer that starts when the the app is started. the timer is for a arc4random that gives me a random number from 1 to 10 and based on that number chooses one of multiple if statements. I also need the timer to reset when the random number is given so that a new random number can be given by the arc4random. I have not yet figured out how to implement the timer and arc4random, but i give an example of the if statements below.
Example:
if timer <= 9 {
print(A)
}
if timer <= 5 {
print(B)
}
if timer >= 4 {
print(C)
}
I am not sure if this is what you are looking for but it sounds like it...
var timer = NSTimer()
func viewDidLoad() {
self.timer = NSTimer.scheduledTimerWithTimeInterval(1.0, target: self, selector: "getRandomNumber", userInfo: nil, repeats: true)
}
func getrandomNumber(){
let randomNumber = Int(arc4random_uniform(10) + 1)
if randomNumber >= 9 {
print("...")
} else if randomNumber < 9 {
print("...")
}
timer.invalidate()
resetTimer()
}
func resetTimer() {
self.timer = NSTimer.scheduledTimerWithTimeInterval(1.0, target: self, selector: "getRandomNumber", userInfo: nil, repeats: true)
}
when the view loads, the timer begins, where it will call the function getRandomNumber() every 1.0 seconds. getRandomNumber() generates a randomNumber and then depending on what the number is you print or do whatever you want accordingly and then after the if-else statements you invalidate the timer, then call a function called resetTimer, which will start it all over again.
the random number is generated by Int(arc4random_uniform(10) + 1) where 10 is the upper limit and +1 refers to the starting index. So that will generate numbers between 10 and 1. If you did, for example: Int9arc4random_uniform(20) + 2), it would generate numbers between 20 and 2.