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Re: iOS: Preventing a singleton from being deallocated when the app is in the background.
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Re: iOS: Preventing a singleton from being deallocated when the app is in the background.


  • Subject: Re: iOS: Preventing a singleton from being deallocated when the app is in the background.
  • From: Jens Alfke <email@hidden>
  • Date: Wed, 19 Oct 2016 13:03:57 -0700

> On Oct 19, 2016, at 12:54 PM, Alex Zavatone <email@hidden> wrote:
>
> Is there anything wrong with what I'm doing?

Looks fine to me. Is any of this code using manual ref-counting? If so, I’d suspect an over-release.

> should I be using [GeofenceControllerSingleton alloc] init] instead of [[self alloc] init]?

It would be slightly safer since it guarantees the base class will be instantiated (which is what you probably expect) instead of any subclass that this factory method is called on.

—Jens
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  • Follow-Ups:
    • Re: iOS: Preventing a singleton from being deallocated when the app is in the background.
      • From: Alex Zavatone <email@hidden>
    • Re: iOS: Preventing a singleton from being deallocated when the app is in the background.
      • From: Steve Mills <email@hidden>
References: 
 >iOS: Preventing a singleton from being deallocated when the app is in the background. (From: Alex Zavatone <email@hidden>)
 >Re: iOS: Preventing a singleton from being deallocated when the app is in the background. (From: Steve Christensen <email@hidden>)
 >Re: iOS: Preventing a singleton from being deallocated when the app is in the background. (From: Alex Zavatone <email@hidden>)

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