nstimer

I have referred to countless other questions about a press-and-hold button but there aren't many related to Swift. I have one function connected to a button using the touchUpInside event: @IBAction func singleFire(sender: AnyObject){ //code } ...and another function that is meant to call the function above repeatedly while the same button is held down, and stop when the button is no longer pressed: @IBAction func speedFire(sender: AnyObject){ button.addTarget(self, action: "buttonDown:", forControlEvents: .TouchDown) button.addTarget(self, action: "buttonUp:", forControlEvents: .TouchUpOutside

Hey so i am just making an example application and i am having a little trouble, So i have a table view and then i have a few rows and when a user clicks a row it takes them to a new view. On this view i have a button to play music. I am using a timer to make a slider bar increase based on music duration and remaining time. Now my problem is, what do i have to put so that when i go back to the table view via the top left button, that the NSTimer stops? this is what i have so far, i cannot get a repeat: YES timer to stop. #import "SecondViewController.h" @implementation SecondViewController

Im developing an app that has to run in the background. It's a location based app, so it runs all the time, the OS doesn't kill it. It should send some info every 10 secs(just for debugging), I set a timer once its in the background. I set a breakpoint in the function that should be executed every 10 secs, which is never called, but if I pause the app and then continue the timer is called, and then the timer is executed every 10 secs without problems, weird right? I thought that the timer would be executing anyway when I wasn't debugging, but it isn't, same thing as if I didn't pause the

I am just about finished with my app and beta testing found a bug in the stopwatch portion... The stopwatch uses an nstimer to do the counting and has a table for storing laps, but when the lap table is scrolled the watch stops or pauses and does not make up for the lost time. This was stalling was eliminated by using: startingTime = [[NSDate date] timeIntervalSince1970]; to calculate the elapsed time. but I am still using the NSTimer to trigger every 0.1 secs and that means that the scrolling still stalls the timer even though the elapsed time will be updated correctly in the end... and

How can I pass a parameter to the method called by a NSTimer? My timer looks like this: [NSTimer scheduledTimerWithTimeInterval:4 target:self selector:@selector(updateBusLocation) userInfo:nil repeats:YES]; and I want to be able to pass a string to the method updateBusLocation. Also, where am supposed to define the method updateBusLocation? In the same .m file that I create the timer? EDIT: Actually I am still having problems. I am getting the error message: Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: ' * -[MapKitDisplayViewController updateBusLocation]:

I have a timer that runs to restart an alarm once it goes off. alarm = NSTimer.scheduledTimerWithTimeInterval( 60 * minutesConstant + secondsConstant, target:self, selector: Selector("endSession"), userInfo: nil, repeats:false) Its selector function sets a mode flag, and calls the original function that set the alarm with new minutes and seconds constants, and also sends a user notification that the session has restarted. I have a menu item that gets updated with the remaining time So I've been opening it to check that my alarm does indeed restart, and that the notification shows once it hits