First foray with Xcode 4.

A cautionary note. When making the .plist in Xcode 4 there is not a visible level named "Root". The first entry should be the dictionary of the first record (i.e. Jones in example in Figure 4-11.) The same .plist in Xcode 3.x will show a "Root" level above "Jones". If an initial entry is made in the .plist in Xcode 4 of "Root" to make the file look like the figure, the program will not function correctly, since this will be read as the only key.

Two minor points.
1. There is no point in the text where the UINavigationItem IBOutlet *rootTitle is connected. The property is set and synthesized, but at no point is the MainWindow.xib opened to actually have the connection made. Without the connection the wrong title is presented in landscape mode since the string "Contacts" has been set to rootTitle which is a null pointer.
2. Listing 4-1 should be "complete DetailViewController.h" not .m and the template puts the UIPopoverController *popoverController declaration in the .m file not the .h file. so that should be omitted from the listing.

Bob

Ah yes, Xcode 4 :)

I have made the switch and while there is a bit of a "Where is ...", I am liking it. I am hoping Wrox will allow me to update for Xcode 4, in the meantime I am looking into video podcasts or webinars. I am scoping that out at the current moment. Stay tuned !

There may be some disorientation for readers coming to the book using Xcode 4, depending on their prior experience, since (at least through the point I am in the book) in a lot of the projects Outlets and Actions are added in Interface Builder and use File Merge rather than in the typing them in the ".h" file. I haven't really seen or done it that way since my first forays into Cocoa with Hillegass's first edition of Cocoa Programming (and Project Builder). If the reader doesn't get bent out of shape and makes the changes in the project files rather than when editing the .xib (I do not see an equivalent way to add outlets and actions in the .xib in Xcode 4 as of yet) they shouldn't encounter any issues. The main stumbling blocks will be for a reader who isn't aware that the the task can be completed that way. Unfortunately, I have seen some excellent, informative books receive poor and in some cases savage reviews (on Amazon e.g.) because screenshots didn't match, and steps to complete a task changed since Xcode evolved.
Anyway, on to Chapter 5.
Bob

I am an old NeXTSTEP programmer and old habits are hard to break



It is truly amazing.... (the audio isnt there.... yet )

Adding Outlets and Actions in Xcode 4

Found how to add the Outlets and Actions this morning. The thing that was a little frustrating was that in using it in SimpleGestureRecognizer-iPad, even with the view set to the SimpleGesturesView class identity it would only set up the automation to the …iPadAppDelegate. (Probably have to make a separate .xib or instantiate an NSObject in the MainWindow, but haven't tried that yet).
Also with the default setting of the instance variables with the leading underscore, have to get in the habit of typing self for all of the access. Will love typing less though…
Bob

Hey Bob,

Here is what I do, especially since my clients require it


interface

implementation

This way you still have access to the variable without the underscore



Take Care,
Gene

That matches what is auto-generated. The point I was trying to make is that a line like the following in -(void)awakeFromNib on p. 184 cannot be written as

when using the autogenerated leading underscore accessors

since it generates an error "Use of undeclared identifier 'imageView', did you mean '_imageView'?

it must be either

or


Bob

Are you saying that even if you add the @property and @synthesize as I posted above using _imageView, you still get the error ?

Yes.
The assistant generated code is

and


which generates an error if imageView is used without self.imageView or the leading underscore is omitted. It will present you with the Fixit option of adding the underscore.

Bob

Ahhh yes, I see what you are saying.