Errata

On page 73, the code is not clear to let us know what is the right code to implement on XCode. The magnets are above the text, equal sign is missing, etc. I still don`t know what is the correct code.

Note from the Author or Editor:
On p. 72 and 73 of the book a magnets exercise and the solution end up on the same spread. The correct layout would be as follows: p. 70 just the test drive; p. 71 just the no dumb questions; p. 72 Marco with the "where's my hashy tag"; p. 73 the magnets and p. 74 the solution. That will split the exercise and the solution.

As for the actual code it is below. For the following syntax, that should be blank in the magnet exercise and filled in with a magnet in the solution. *tweetText, NSString (inside the first [ ), and %@ # MarcoPollo, self.tweetTextView.text. I can send along screenshots of the correct text if that's helpful.

- (IBAction)postItButtonPressed:(id)sender {
NSLog(@?Post It button was pressed: %@?, self.tweetTextView.text);
NSString *tweetText = [NSString stringWithFormat:@"%@ #MarcoPollo, self.tweetTextView.text];
SLComposeViewController *composer = [SLComposeViewController compo
seViewControllerForServiceType:SLServiceTypeTwitter];
[composer setInitialText:tweetText];
[self presentViewController:composer animated:YES completion:nil];
}

The "Who does what" quiz on page 147 says that the answers are on page 162. In fact the answers are on page 176 of the PDF version. (This is also incorrect in the mobi version).

Note from the Author or Editor:
Change the note on page 147 to read "Answers on p. 176"

The code snippet says that we need to set the seque identifier to "showAlbumDetails".
This will not work.
The project will build and run without errors, but none of the details will appear on the detail view.
The correct seque identifier is "ShowAlbumDetails".

Note from the Author or Editor:
change the bolded text from "showAlbumDetails" in the code to "ShowAlbumDetails"