Re: to implement a 1 sec repeating timer in a separate thread
Re: to implement a 1 sec repeating timer in a separate thread
- Subject: Re: to implement a 1 sec repeating timer in a separate thread
- From: Nick Rogers <email@hidden>
- Date: Thu, 22 Oct 2009 16:18:03 +0530
Hi,
Thanks for the reply. My question was very vague, I admit.
But now I have moved to your suggestion.
I'm setting up the timer via [NSTimer scheduledTimerWithTimeInterval:
1.0 target: self selector: @selector(doSomething:) userInfo: nil
repeats: YES];
But the doSomething is not getting called at all.
May be because this thread is busy doing something else, so do I have
to setup the timer in say main Thread.
Earlier I was doing so, by setting up the timer by calling this
setting up method as [self performSelectorOnMainThread:............],
and it was working, but even after invalidating the timer, the timer
was still referencing the object that contained NSTimer *timer.
Any suggestions?
Nick
On 22-Oct-2009, at 2:32 PM, Dave Keck wrote:
I'm having a really hard time making sense of you message...
> I have been trying to implement a 1 second repeating timer, but
its leading
> to retaining the target object
That's expected behavior - NSTimers retain their targets. The target
won't be deallocated until the timer has been invalidated (assuming
the timer was the only thing keeping the target alive.)
> But its leading to referencing the target object of my thread, by
3-4
> non-objects (bytes), which shows different descriptions every time
as per GC
> Monitor Instrument (kind of undefined behavior).
Woah, this sentence has my completely baffled:
o Prior to this sentence, you were talking about retaining/
releasing, not you're talking about garbage collection. I think I'm
still following you though - regardless, the timer is keeping the
target alive.
o 3-4 bytes of what? Why do these bytes matter?
========== Moment of clarity in 3... 2... 1...
Oh. I think you're just trying to have a method called every second.
If that's the case, no need to concern yourself with threads and...
well, whatever it is that's going on in that code snippet. :D
[NSTimer scheduledTimerWithTimeInterval: 1.0 target: self
selector: @selector(doSomething:) userInfo: nil repeats: YES];
That will call self's -doSomething: method every second. Is that
what you're trying to accomplish?
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