Errata for Cocoa Programming

#49350: Not so much an error, but the later versions of Xcode (mine is 4.2) don't have Add > Existing Frameworks. This describes this is the new gui steps for adding the webkit framework:

stackoverflow.com/questions/3352664/how-to-add-existing-frameworks-in-xcode-4

Of course, many other things have changed in XCode 4, but Just listing this in the errata would have saved me a bunch of time poking around trying to match things up (most other things up until there had been easy enough to guess around).

Great book so far, thanks! Hoping there's an update for XCode 4.x in planning...--Admin A Gamz LLC

#43013: The footnote states that the return type of goBack: is IBAction, but the documentation seems to clearly indicate that it's void.

This could be a quirk of Apple's documentation; searching for goBack: in the documentation browser shows that PDFView's goBack: method does return IBAction.--Ben Bleything

#45613: This line in the sample code under section 4.10 'Logging Objects' produces 2 errors '_LINE_', and '_FILE_' not defined:
NSLog(@"This occurred in %@ at line %d in file %s.", NSStringFromSelector(_cmd),_LINE_, _FILE_);--Bob Miller

#43047: Text in penultimate sentence before section 7 -
"That is enough information for us to find the leak, although if you double-click the line reporting the leaked Greeter object, you will be taken to the offending lines in the source code." Double clicking doesn't do anything. You much click the arrow in the address column and then double click the result.--Vic Strachan

#43050: First sentence on page:

"Choose the menu item Build > Build & Debug. You should see a boilerplate message in your Console window followed by something like this:".

I cannot get this to work whatever I do including cleaning target and using the downloaded code.--Vic Strachan

#43054: If I use the downloaded code for Flashlight4 I get the following response minus the last line:

"Greeter name: Maggie created: 2009-09-18 14:24:43 -0400
objc[11179]: FREED(id): message respondsToSelector: sent to freed object=0x3b06760
Program received signal: ‘‘EXC_BAD_INSTRUCTION''."

There does not appear to be a reference to Flashlight 4 in the text.--Vic Strachan

#46418: The 3rd footnote states an Objective-C protocol is similar to an Interface in Java.
If you implement a Java Interface, you have to implement all its methods.
A Java Adapter is a dummy class that implements an Interface, containing empty bodies. Hence you can inherit from an Adapter, only overriding those methods you need.
One example is the Java Interface is WindowListener and its Adapter is WindowAdapter.--Stijn

#46183: Error or not error? - You are writing:

"Click Build & Run, and your application should run exactly as before.
We’re now receiving notifications when applications launch or terminate …"

My code is exactly the same as your code I have downloaded. I have never received a notification when application terminates. Principally, how could 'Terminated' be displayed after the application has terminated? Should we not apply something like 'applicationWillTerminate' or 'applicationShouldTerminate' to get an appropiate message?

Gerhard

--Gerhard Fassnacht

#46200: After the following of chapter 14 - Multiple Nibs, i've discovered that it is possible to resize the window when it runs. When you start resizing the NSImageWell and NSTextfield start flying all over the window and out of it.

I compared it with the sample code (Multiple Nibs - hello applicaton21) and this too has the same "strange" behaviour.

The setting of the setContentSize does work well initially, but i think somehow the view should lock.
--Martijn Onstwedder

#42717: You do not see this "default" look until you add the following line to IconViewController.m:

((IconView *)self.view).appName = app.localizedName;

This isn't mentioned (shown) until the bottom of page 253--Ken

#47966: "I've chosen to update the display with the new value that I pull off the "change" dictionary.

Line 5 reads:
[self updateDisplay:[object valueForKeyPath:keyPath]];

In fact, the author is pulling the value from the object ( in this case, "UpOrDown" )

this call seems to fulfill the intent of the author.

[self updateDisplay:[change valueForKeyPath:@"new"]];--Michael de Haan