Errata

using Xcode 4.3.2.build 4e2002 on OSX 10.7.3

page 70 indicates xCode will automatically build numerous methods. In fact most of the methods shown are NOT built. This is the source which is auto-generated:


#import "CGViewController.h"

@interface CGViewController ()

@end

@implementation CGViewController
@synthesize tableview;

- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}

- (void)viewDidUnload
{
[self setTableview:nil];
[super viewDidUnload];
// Release any retained subviews of the main view.
}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}

@end


viewWillAppear, viewDidAppear, viewWillDisappear, and viewDidDisappear are not automatically built as indicated...

@interface CityGuideDelegate : NSObject <UIApplicationDelegate>

should be:

@interface CGAppDelegate : NSObject <UIApplicationDelegate>

Go back to RootController.m / Go back to CGViewController.m

Go back to RootController.m and add the highlighted lines in the following code to the didSelectRowAtIndexPath: method:

RootController.m does not exist in the project, the reference should be to CGViewController.m, so the sentence should read:-

Go back to CGViewController.m and add the highlighted lines in the following code to the didSelectRowAtIndexPath: method:

Why suddenly use 'autorelease' in the initWithFrame:CGRectZero?

initWithStyle:UITableViewCellStyleDefault...

suddenly becomes:

initWithFrame:CGRectZero...

did I miss anything there?

initWithStyle:UITableViewCellStyleDefault...

suddenly becomes:

initWithFrame:CGRectZero...

did I miss anything there?

#import "City.h";

should be:

#import "City.h"

without the ;

Add the following to MainViewController.m

should be:

Add the following to BMMainViewController.m:

According to point 3 (page 142), the if( self.editing ) { ... } conditional statement in the tableView:numberOfRowsInSection: method should be removed. However page 143, the statement is still presented as the final code.

Previous page tells the reader to delete the line:

"cell.editingAccessoryType = UITableViewCellAccessoryNone;"

but subsequently told that the results should be the same as this, where the line is still present.

Previous page tells the reader to delete the section:

"if(self.editing) {
count = count + 1;
}"

And then to verify the file with this page, but this line is still present in the listing given.

- (void)tableView:(UITableView *)tvdidSelectRowAtIndexPath:(NSIndexPath *)indexPath

has a space missing, and should read:

- (void)tableView:(UITableView *)tv didSelectRowAtIndexPath:(NSIndexPath *)indexPath

PrototypeViewController.h does not exist, it should be ViewController.h

the code "gcc -o eatblob eatblob.c -lsqlite3" should be "gcc -o eat blob eatblob.c getdelim.c getline.c -lsqlite3"

the roll control of an aircraft is done by moving the ailerons. The flaps are used to change lift and drag at a given airspeed.

The "tail flap" is called the rudder. It does induce yaw. The heading of the aircraft is actually changed by banking to the right or left, then applying rudder yaw to push the tail around to follow a circular path.

You seem to have switched


cell = [[ UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@" cell"];

to

cell = [[[ UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:@" cell"] autorelease];

part way through the code excerpts in the book, but not here:

http://examples.oreilly.com/0636920018490/LearningiOSProgramming2ndEd_Examples/CityGuide4/CityGuide/CGViewController.m

something the snuck in from an older version?