IOS How to pass variable valet the scheduledTimerWithTimeInterval - ios

Question

I am sending users location to the server through web service, in the response I get interval to send next location. I am using the following call to send locations using timer but when I get the different value the timer still uses the old value. I also tried to invalidate the timer to set the new value but seems not working
I have global variable
long counter= 10;
self.timer = [NSTimer scheduledTimerWithTimeInterval:counter target:self selector:#selector(updateLocation) userInfo:nil repeats:YES];
- (void)updateLocation {
CLLocation *location = self.locationManager.location;
....
counter = 30;
}
I followed the couple of post from stack overflow but did not get it working.
In short, I need to send the updated location based on the response!

Answer 1

#interface MyClass()
#property (strong, nonatomic) NSTimer *timer;
#property (nonatomic) CGFloat counter;
#end
#implementation MyClass
- (void)viewDidLoad
{
[super viewDidLoad];
//set initial value for timer
self.counter = 10;
[self resetTimer];
}
//...
- (void)resetTimer
{
[self.timer invalidate]
self.timer = [NSTimer scheduledTimerWithTimeInterval:self.counter target:self selector:#selector(updateLocation) userInfo:nil repeats:NO];
}
- (void)updateLocation
{
CLLocation *location = self.locationManager.location;
//...
self.counter = 30;
[self resetTimer];
}
//...
- (void)dealloc
{
//invalidate timer to avoid zombie objects (EXC_BAD_ACCESS crash)
[self.timer invalidate];
}
#end