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Re: Could somebody please fix NSTimer?
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Re: Could somebody please fix NSTimer?


  • Subject: Re: Could somebody please fix NSTimer?
  • From: Ian was here <email@hidden>
  • Date: Sat, 12 Jan 2013 11:45:57 -0800 (PST)

If it's a repeating timer, then you can call invalidate and assign it to nil in the target selector method. This approach wouldn't require a class reference to it either.



________________________________
 From: Gordon Apple <email@hidden>
To: email@hidden
Sent: Saturday, January 12, 2013 10:49 AM
Subject: Could somebody please fix NSTimer?

When compiled under ARC, NSTimer should have a weak, not strong, reference
to its target.  When the timer starts to fire, check the reference for nil
and invalidate itself.  Come on guys, how hard is that?  You wouldn¹t even
have to keep a reference to it, unless you want to invalidate it before the
target deallocates.

Trying to invalidate an NSTimer in dealloc doesn¹t work, because dealloc
will never get called due to the strong reference in NSTimer.  Leaks galore.
Lots of mentions of this when you Google it for retain cycles.

You can¹t subclass NSTimer, but you can wrap it.  I did this in iOS to
create a suspendable timer.  Maybe I can do something similar for Mac to
make it behave properly.
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References: 
 >Could somebody please fix NSTimer? (From: Gordon Apple <email@hidden>)

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