CODEWITHSUNDEEP
iphoneiosbackgroundnstimerbackground-process
SirRupertIII
SirRupertIII

Reputation: 12595

How can I have an NSTimer going throughout the entire time the user is in the app?

How can I have an NSTimer going throughout the entire time the user is in the app?

I want to be able to change view controllers and perform different functions, all while a timer is going on int the background. If the timer hits 0, then I want to fire an event. Can I also have a timer going inside the app while the app is in the background? Or even when the iPhone's screen is off?

Thanks for the answers!

Upvotes: 0

Views: 164

Answers (2)

Dolo
Dolo

Reputation: 976

Run this method in app delegate

-(void) timerfunc{
    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
    timer = [NSTimer scheduledTimerWithTimeInterval:(0.5) target:self selector:@selector(yourfunction) userInfo:nil repeats:YES ];
    [pool release];

}

Upvotes: 1

Xcoder
Xcoder

Reputation: 1807

Do this piece of code in the Appdelegate making the timer its property.

self.timer = [NSTimer scheduledTimerWithTimeInterval:intervalForTimer
                                                    target: self
                                                  selector: @selector(timerExpired:)
                                                  userInfo: nil
                                                   repeats: NO];

   //Run the timer on the runloop to ensure that it works when app is in background
  [[NSRunLoop currentRunLoop]addTimer:self.timer forMode: NSDefaultRunLoopMode];

Upvotes: 2

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