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Re: ARC and Singletons
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Re: ARC and Singletons


  • Subject: Re: ARC and Singletons
  • From: Dave DeLong <email@hidden>
  • Date: Mon, 01 Aug 2011 09:14:20 -0700

That would work.  However, you lose out on being able to declare "foo" as an @property (not a big deal) and have to write the accessors yourself (annoying, since the compiler knows how to do this already but can't in this case).

Dave

On Aug 1, 2011, at 9:05 AM, Dave Zarzycki wrote:

> The simplest and most ARC friendly way to implement the singleton pattern is to switch from instance methods to class methods – because the class itself is by definition a singleton. In other words:
>
> 	+ (MyClass *)sharedInstance;
> 	// and maybe override alloc/retain/release to enforce the singleton pattern
> 	- (int)foo;
> 	- (void)setFoo:(int)val;
>
> …becomes simply:
>
> 	+ (int)foo;
> 	+ (void)setFoo:(int)val;
>
> davez
>
>
> On Aug 1, 2011, at 8:48 AM, Jeff Kelley wrote:
>
>> Is there a new recommended way to implement a singleton with ARC? I remember
>> hearing something about it, but I’m not sure what it was.
>>
>> Jeff Kelley
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References: 
 >ARC and Singletons (From: Jeff Kelley <email@hidden>)
 >Re: ARC and Singletons (From: Dave Zarzycki <email@hidden>)

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