Am 05.06.2010 um 23:14 schrieb Jean-François Brouillet:
> Consider the situation where I have a "root" ImageView in IB.
> I specify the actual image I want it to hold by just filling/
> selecting which of the existing images are already present in the
> project, using the "Image" input box of the Image View Attributes
> inspector.
>
> Then I can just set the titleView outlet of some navigationItem
> elsewhere in the same nib file, and voilà, my image is displayed
> at runtime exactly where I want I, when I want it.
>
> But now I create a second nib file for a second controller, and
> I really would like to display the same image in the same kind
> of setup.
>
> Problem is: I haven't figured out whether it is possible at all
> for nib file#2 to refer to any object inside nib file#1,
No it is not.
> hence
> I have to either pay the memory cost of a duplicate object in
> the second nib file,
Yes. as Ken told you, views can have only one superview.
> So, I've got the message, thank you, and I'm going to *programatically* share
> that view either in the app delegate or the root view controller, whichever
> way is cleanest.
This will break. See above. And because you will try it you make clear that you
did not understand the answer given by Ken.
> or forget about nib files entirely and do
> the whole wiring by hand with code, which kind of defeats the
> purpose of separate nib files in the first place.
Why should you have to do that? You just need one titleView in every nib. A
simple imageView takes up some bytes in memory. The image itself is shared
anyway. You win nothing by trying to reuse that view.
> So ... is there a way to refer to NIB1.objA from NIB2.objB ?
No. And there never will be, as it is impossible (see Ken’s very good
explanation).
It _is_ a beginners question and it was answered in detail.
> Bonus question: is it possible at all to refer to nib files
> (while staying within IB) outside of the main project directory?
> I tried variations on ./rsrc/mynib2 or rsrc/mynib2 in the NIB Name
> input field to no avail ...
They have to be anywhere in the project. Just use the name, as they will be
copied to Resources.
> I plainly understand that I can spread my NIB files all over the
> place (almost :-) if I go the coding route, but I'd rather do
> everything I can in IB if that's possible ...
Yes, use nibs. Then just add that one image view and be done with it.
atze
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