The errata list is a list of errors and their corrections that were found after the product was released.
The following errata were submitted by our customers and have not yet been approved or disproved by the author or editor. They solely represent the opinion of the customer.
| Version |
Location |
Description |
Submitted by |
Date submitted |
| PDF, ePub |
Page 1
1 |
Not a single word on UICollectionView and related classes (UICollectionReusableView, UICollectionViewCell, UICollectionViewController, UICollectionViewFlowLayout, UICollectionViewLayout, UICollectionViewLayoutAttributes and UICollectionViewUpdateItem) ???
|
Mazzaroth |
Dec 20, 2012 |
|
1.18
2nd code example in Discussion section |
In the second code example of section 1.18 "Typecasting with Automatic Reference Counting", the comment "/*Compile time error!!! */" is carried over from the first code example, though the following text indicates that the compile time error was removed by the code change ("Perfect! Exactly what we wanted.").
|
dravetti |
Jul 05, 2013 |
| PDF, ePub |
Page 124
last code sample on page |
You use number of seconds assuming the calendar and performed an offset using that assumption. Why wouldn't you use the recommended method of date components for computing the offset.
Dates are always difficult as Apple recently learned with the iOS Do Not Disturb debacle, the last thing iOS needs is more people making bad date calculations.
I just checked your section of Date Handling and again on page 708 you repeat this error-prone approach.
What boggles my mind is that in place of the lengthy comment, you could have added...
- (NSDate*)dateForOneYearOffsetFromDate:(NSDate*)baseDate offsetInFuture:(BOOL)futureFlag
{
static NSCalendar *gregorian = nil;
if (gregorian == nil) {
gregorian = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
}
NSDateComponents *offsetComponents = [[NSDateComponents alloc] init];
[offsetComponents setYear:(futureFlag ? 1 : -1)];
return [gregorian dateByAddingComponents:offsetComponents toDate:baseDate options:0];
}
|
dlejr |
Jan 09, 2013 |
| Printed, PDF, ePub, Mobi, , Other Digital Version |
Page 132
|
there is a mistake in the book ' iOS 6 Programming Cookbook' in page 132
/* Set the tint color of the thumb */
self . slider . maximumTrackTintColor = [ UIColor greenColor ];
/* Set the tint color of the maximum value */
self . slider . thumbTintColor = [ UIColor blackColor ];
the comments are switched in those two lines of code the second belongs to the first and vice versa.
Best Regards,
Sarah Gheita
|
Adam Zaremba |
Jan 22, 2013 |
| PDF |
Page 208
in the code |
There are several references to "newImageViewWithImage", e.g.,
UIImageView *iPhoneImageView = [self newImageViewWithImage:iPhone frame:imageViewRect];
This method is not defined anywhere in the book, however it is in the sample code. Without this method, the solution code is meaningless as it will not compile and it is only marginally clear (thanks to the method's name) what that method returns.
Please either include the code itself or point the reader to the sample code on github:
- (UIImageView *) newImageViewWithImage:(UIImage *)paramImage
frame:(CGRect)paramFrame{
UIImageView *result = [[UIImageView alloc] initWithFrame:paramFrame];
result.contentMode = UIViewContentModeScaleAspectFit;
result.image = paramImage;
return result;
}
|
Bryan Hanks |
May 09, 2013 |
| Printed |
Page 223
Recipe 2.27 |
iOS 6 has an issue with the use of the identifier "popoverController". It conflicts with the identifier "_popoverController" that already exists in the SDK. I changed all the instances to "myPopoverController".
|
George Thompson |
Apr 15, 2013 |
| Printed |
Page 231
Code at the top of the page |
The app will not run because of the identifier "barButtonAdd".
|
George Thompson |
Apr 15, 2013 |
| Printed |
Page 316
Code |
The code for moving a cell from section 1 to section 2 does not function property. I get this error:
The number of rows contained in an existing section after the update (3) must be equal to the number of rows contained in that section before the update (3), plus or minus the number of rows inserted or deleted from that section (0 inserted, 0 deleted) and plus or minus the number of rows moved into or out of that section (0 moved in, 1 moved out).'
I haven't tried it, but it would appear that I would also have to move a cell from section 2 back to section 1 to compensate for the move.
|
George Thompson |
Apr 15, 2013 |
| Printed |
Page 382
Line 16 |
The code:
NSData *imageData = [NSURLConnection etc
apparently does not fit the current format for this object. Code completion asks for "queue:" and "completionHandler:"
Code will not function as written.
|
George Thompson |
Apr 21, 2013 |
| Printed |
Page 403
Near the bottom |
"simpleOperation" is not declared property for this version of the app. I was able to get it to work by changing the code to:
CountingOperation *simpleOperation = [[CountingOperation alloc] initWithStartingCount:0 endingCount:1000];
[simpleOperation start];
|
George Thompson |
Apr 26, 2013 |
| PDF |
Page 608
close to bottom |
you say: [picker dismissModalViewControllerAnimated:YES];
it should be:[[picker presentingViewController] dismissViewControllerAnimated:YES completion:nil];
your code is deprecated in iOS 6.0
|
Anonymous |
Dec 28, 2012 |
| ePub |
Page 2218
Solution |
The exercise as written and also as found in the sample code "Retrieving the List of Calendars.xcodeproj" does not work with iOS6.0.1 it does however work with iOS 5.1.1
The code does not produce any output. The "For loop construct" "for (EKCalendar *thisCalendar in eventStore.calendars)" is not entered.
I would be really pleased if you told me how to change the code to make it work with iOS 6
Kind regards
Adrian Willis
|
Adrian Willis |
Dec 17, 2012 |
| ePub |
Page 2219
Exercise 16.1 |
I have found the solution to my bug that I explained previously. iOS 6 requires the user to grant your App access to the Event Stores.
If you put this code in, it will work nicely:
/* iOS 6 requires the user grant your application access to the Event Stores */
if ([eventStore respondsToSelector:@selector(requestAccessToEntityType:completion:)])
{
/* iOS Settings > Privacy > Calendars > MY APP > ENABLE | DISABLE */
[eventStore requestAccessToEntityType:EKEntityTypeEvent completion:^(BOOL granted, NSError *error)
{
if ( granted )
{
NSLog(@"User has granted permission!");
}
else
{
NSLog(@"User has not granted permission!");
}
}];
}
|
Adrian Willis |
Dec 17, 2012 |