CS 185C/286 - Lecture 14

Cay S. Horstmann

Lecture 14 Quiz 1

To which protocol does numberOfRowsInSection belong?

1. BIDViewController
2. UIViewController
3. UITableViewDataSource
4. UITableViewDelegate

Lecture 14 Quiz 2

The author added images to each cell by calling

UIImage *image = imageNamed:@"star.png";
cell.imageView.image = image;      
    

Which of the following is true?

1. The author defined properties imageView and image
2. The author defined the imageView property, but every image view has an image property
3. The author defined the image property, but every cell has an imageView property
4. The author didn't define either property.

Today's Lecture/Lab

• iOS tables

Tables

• UITableViewDelegate describes visual appearance, manipulation options
• UITableViewDataSource describes contents of table (2 required methods)
• numberOfRowsInSection gives rows in a particular section
• cellForRowAtIndexPath gives UITableViewCell for NSIndexPath
• Need reuse identifiers for enabling cell reuse. Can use same identifier if all cells look the same.

Reading Before Next Class

• Read chapter 9 in Beginning iOS 5 Development up to (but not including) "Second Subcontroller: The Checklist"

Lab

• Bring your laptop to the lab
• You will work with a buddy
• For this lab, match yourself up with a buddy who has a Mac
• I want you to submit your lab code to git. But don't use the git support in the IDE.
• Instead, tell XCode to put your (unmanaged) project into the workspace/lab14 directory.

Simple Tables

• Follow the iPhone programming book Chapter 8, Implementing a Simple Table
• Add a table view as described.
• Wire the controller as described. Which methods belong to the UITableViewDelegate protocol and which to UITableViewDataSource?
• Go on to the section "Adding an image". Just use this image.
• Now use this image for the Disney dwarves (up to Dopey), and the other image for the Tolkien dwarves. How do you do that?