I am creating a timer inside my ViewController. After it fires once, the program ceases to respond to any further UI events.
I create the timer inside of ViewDidLoad() with:
NSTimer.scheduledTimerWithTimeInterval(1.0, target: self, selector: "initTimerFired", userInfo: nil, repeats: false)
with timer function (defined as method of ViewController):
func initTimerFired(){
println("Timer fired")
}
It successfully fires, but thereafter the program hangs and does not respond to UI events. If I set repeat = true then it runs a couple of times before quitting with EXC_BAD_ACCESS.
I have looked at many different answers and examples, and I can't see what I am doing wrong.
I am running this on an iOS simulator, using xcode 6.1.
Here is an update. Thanks to the suggestions and code provided in the first answer, I have something working. However, my code, which looks to me to be the same, does not work. In order to implement things within the context of a larger project, I want to know how to avoid the errors I am seeing. For instance, this works:
class ViewController: UIViewController {
@IBOutlet weak var strConsole: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
initTaskManager()
}
func initTaskManager(){
let taskManager = NSTimer.scheduledTimerWithTimeInterval(1.0, target: self, selector: "updateTask", userInfo: nil, repeats: true)
}
func updateTask(){
self.strConsole.text = "\(strConsole.text!)Abc"
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
}
But this version does not. Only the function names have changed!:
class ViewController: UIViewController {
@IBOutlet weak var strConsole: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
initTimer()
}
func initTimer(){
let timer1 = NSTimer.scheduledTimerWithTimeInterval(1.0, target: self, selector: "initTimerFired", userInfo: nil, repeats: true)
}
func initTimerFired(){
self.strConsole.text = "\(strConsole.text!)Abc"
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
}
Do not use: initTimerFired, change to something else like: handleTimer,
init as a prefix of the function name may confuse Xcode