CS 185C/286 - Lecture 15

Cay S. Horstmann

Lecture 15 Quiz 1

What is true about iOS applications that use hierarchical tables?

1. A button that identifies the preceding level is automatically supplied
2. All parts of the hierarchy must be tables
3. All tables at a given level must have the same structure
4. All of the above

Lecture 15 Quiz 2

Which method is called to move from one hierarchy level to the next?

1. setViewController
2. pushViewController:
3. pushTableViewController:
4. pushViewController:animated:

Today's Lecture/Lab

• Navigation between tables

Navigation Between Tables

• Common "drill down" navigation pattern
• 
• UINavigationController class manages a stack of table views
• No need for xib files

Reading Before Next Class

• Read chapter 9 in Beginning iOS 5 Development starting at "Second Subcontroller: The Checklist" and up to (but not including) "Third Subcontroller: Controls on Table Rows"

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/lab15 directory.

Table Navigation

• Follow the iPhone programming book Chapter 9, Navigation Controllers and Table Views
• What application type are you supposed to start with? (It's not a single view application.)
• Make BIDFirstLevelViewController. What is the superclass?
• Edit the app delegate as indicated. Look at the app delegate from the previous lab. Give a difference between the two.
• Make BIDSecondLevelViewController. What is the superclass?
• Why is everything removed from BIDSecondLevelViewController.m?
• Edit the .h and .m files of BIDFirstLevelViewController as indicated.
• Run the app. What happens?
• Make BIDDisclosureButtonViewController. What is the superclass?
• Make BIDDisclosureDetailViewController. What is the superclass?
• What is the difference between these two classes?
• Edit the .h and .m files of BIDDisclosureDetailViewController as indicated.
• Edit the .h and .m files of BIDDisclosureButtonViewController as indicated.
• Why did they do the steps in this order, instead of first completing BIDDisclosureButtonViewController before turning to BIDDisclosureDetailViewController?
• Edit BIDFirstLevelViewController as indicated. Then run the app. What happens in the first table?
• What happens when you click the top row?
• What happens if you click the top row of the resulting table outside the button at the right?
• What happens if you click the button at the right?
• Which view makes that display?