List of Notes and Errata

weimenglee · May 19th, 2010, 11:30 PM

Hi:
I will be maintaining a list of notes and errata for the book in this thread. This message will be edited as errata are discovered as well as notes of interest to the readers will also be posted.

Page 72:

The following block of code:

Code:

    [self.view addSubview:label];
    [self.view addSubview:button];
 
    [self.view exchangeSubviewAtIndex:1 withSubviewAtIndex:0];
 
    [label release];

Should be:

Code:

    [view addSubview:label];
    [view addSubview:button];
 
    [view exchangeSubviewAtIndex:1 withSubviewAtIndex:0];
 
    [label release];

Also, the following block of code:

Code:

   for (int i=0; i<[self.view.subviews count]; ++i) {
        UIView *view = [self.view.subviews objectAtIndex:i];
        NSLog([NSString stringWithFormat:@"%d", view.tag]);
    }

Should be:

Code:

    for (int i=0; i<[view.subviews count]; ++i) {
        UIView *v = [view.subviews objectAtIndex:i];
        NSLog([NSString stringWithFormat:@"%d", v.tag]);
    }

Page 197

The following statement:

Code:

    [movieSelected release];

Should be deleted as it is autoreleased.

Chapter 8 - Application Settings Page 242
Starting with the later beta version of the iPhone SDK 3.2, Apple mandates that the Picker View can only be called up using a PopoverView. Hence, the Picker view displayed in the View window as described in the book will not work. I have modified the original example and uploaded a new version of it at: http://www.2shared.com/file/i5Sr9EwV...nSettings.html.

This updated project also fixed the problem of the app crashing when it loads for the first time and the user clicks on the Load Settings button. Have initialized the value in the Application Delegate.

More information about the PopoverView can be obtained from: http://mobiforge.com/designing/story...pp-development.

Dexor · June 2nd, 2010, 07:45 PM

I have found an error not listed here.
On page 94 the line:
[window addSubview:viewController.view];
Yields the following error upon building:
"Request for member 'view' in something not a structure or union"

Changing the line to:
[window addSubview:[viewController view]];
Works as intended.
Also, the current Apple iPod Touch dev docs have a more in depth way of accomplishing this, found here:
Your First iPhone OS Application: Adding a View Controller

EDIT: Turns out, I forgot to add the #import statement. So, not an error, just a different way to accomplish the same thing. Sorry about that.
EDIT2: To make this post a little more useful, the page right before this, page 93, it states to insert bold lines into the code, but the lines that are needed are not bolded.

fwaltman · June 4th, 2010, 08:16 PM

I have the eBook version (Kindle for iPad) and it doesn't have page numbers. Section titles or something would be helpful to locate the errata. Thanks.

GeezerRoy · June 14th, 2010, 06:32 PM

Page 24 - I could not figure out why my simulator was not displaying as an "iPad" until I finally noticed that one needs to change the "Product" from "iPhone" to "iPad".

Page 38 - The second sentence should end with a period on the second line after the word "View".

TraceEv · July 14th, 2010, 01:41 AM

On page 72, the code fragment between figures 3-21 and figure 3-22 reads:

Code:

        [view addSubview:label];
	[view addSubview:button];
	
	[self.view exchangeSubviewAtIndex:1 withSubviewAtIndex:0];
		
	[label release];

It should read:

Code:

	[view addSubview:label];
	[view addSubview:button];
	
	self.view = view;
	[self.view exchangeSubviewAtIndex:1 withSubviewAtIndex:0];
	
	[label release];

himmeri43 · July 26th, 2010, 11:32 AM

Chapter 8: ApplicationSettings:

The URL http://www.2shared.com/file/i5Sr9EwV...nSettings.html seems to be incorrect