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Re: NSUserInterfaceItemIdentification -identifier vs -tag
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Re: NSUserInterfaceItemIdentification -identifier vs -tag


  • Subject: Re: NSUserInterfaceItemIdentification -identifier vs -tag
  • From: "email@hidden" <email@hidden>
  • Date: Wed, 09 Oct 2013 09:49:27 +0100

On 9 Oct 2013, at 05:32, Keary Suska <email@hidden> wrote:

> On Oct 8, 2013, at 3:25 PM, Lee Ann Rucker wrote:
>
>>
>> On Oct 8, 2013, at 1:59 PM, email@hidden wrote:
>>>>

>>>>
>>> -tag and -identifier both have the advantage of being accessible from within IB.
>>>
>>> J
>>
>> Any simple object can be assigned to a variable in IB, just set them in User Defined Runtime Attributes in the 3rd tab.
>
Thanks. I had forgotten about that.
representedObject can be set this way to a plist type on NSCell instances.

It would be possible to define an NSObject category property, say -myObjectName, backed by objc_setAssociatedObject and set that as a runtime attribute.
Likely overkill.
>
> I would also add that tags and identifiers are "dumb" values--that is they have no intrinsic significance and can be used any way you like (IMHO). I think identifiers are better than tags as they lend themselves to be more human-manageable and have a level of uniqueness enforced Unlike tags,
The readability and uniqueness of -identifier are attractive. -identifier is never(? - so far) nil so user code that utilises it should be able to deal with the auto generated values such as "_NS.154".

> however, there isn't a way (yet, that I know of) to reference a view by its identifier.
NSView implements NSUserInterfaceItemIdentification and this property can be set in Xcode 5 for a custom view.

NSMenuItem also implements NSUserInterfaceItemIdentification but Xcode 5 doesn't provide direct access to this property.
This would mean a different approach for menu and toolbar actions.

It looks as if plain old -tag might win out after all.

J
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References: 
 >NSUserInterfaceItemIdentification -identifier vs -tag (From: "email@hidden" <email@hidden>)
 >Re: NSUserInterfaceItemIdentification -identifier vs -tag (From: Lee Ann Rucker <email@hidden>)
 >Re: NSUserInterfaceItemIdentification -identifier vs -tag (From: "email@hidden" <email@hidden>)
 >Re: NSUserInterfaceItemIdentification -identifier vs -tag (From: Lee Ann Rucker <email@hidden>)
 >Re: NSUserInterfaceItemIdentification -identifier vs -tag (From: Keary Suska <email@hidden>)

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