Re: Cocoa n00b frustrations
Re: Cocoa n00b frustrations
- Subject: Re: Cocoa n00b frustrations
- From: Graham Cox <email@hidden>
- Date: Fri, 6 Jun 2008 01:32:29 +1000
On 5 Jun 2008, at 11:32 pm, Charles Jenkins wrote:
Hi! Despite the fact that you have heard from me before on this
list, I am still an newbie trying to struggle through writing my
first Cocoa app.
I have experienced a couple of frustrations that I would like to
share to see if anyone knows tools or practices that will help avoid
them in the future.
NAUGHTY NIBS
I had a Nib file that went bad. Suddenly, my outlets doubled up: IB
indicated that a class had two outlets named 'textField1' and
'textField2'.
When it came time to make connections, I had no way to tell the real
ones from the ghost ones, so I changed the outlets' names in my code
files and resynchronized. From that point, IB insisted that both the
old and new connections existed. Worried that this might be the
source of another problem I was having, I did everything I could
think of to get rid of the non-existent outlets: I deleted the .h/.m
and recreated them; I deleted and recreated the NSObject instance in
IB; I deleted both the .h/.m pair AND the NSObject instance and
recreated it all using a different class name (MyController instead
of WindowController); and finally closed down IB and Xcode and
edited the XIB file with TextWrangler to delete the non-existent
outlet names.
Nothing worked--the new NSObject instance always magically retained
the memory of textField1 and textField2--until I gave up on the Nib
file by renaming my project directory and creating a new project so
that I would start with a fresh Nib file. Then I moved my .h/.m
files over and connected them with no problem to the new Nib.
Is there any kind of Nib repair utility that will clean up a Nib
file to remove outlets, actions, and classes that do not connect up
to anything in code? Having such an important file just suddenly "go
bad" and have to be recreated from scratch is a real bummer.
I have seen this happen as well. Not sure, but it might be an IB 3
bug, as I never saw it until IB3.
You *can* remove the bogus references without starting over. If I
recall correctly, you can see them in the list of available outlets in
the 'Connections' tab and hit the 'X' button to delete each one.
hth,
G.
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