Thread 2, Day 3

Agenda

1. Discussion: Gradients
   • A brief look at how to create interesting gradients.

   TIP

   Here is a video (made with students in the other section of this course) where the same topics we discussed are shown – useful for review, or if you were absent on this day.

2. Exercise: Optionals
   • Understand how the Swift programming language handles cases where a value may not exist for a variable or constant.
3. Recap: Develop in Swift Tutorials
   • A further opportunity to consolidate concepts learned in module 1, and to learn a few new ways to write apps using the features of Xcode.
   • Chapters 1, 2, and 3 are all good choices to try this week.

     NOTE

     Mr. Gordon was an unpaid technical reviewer for these tutorials; they were authored by a team at Apple.

Things to do before our next class

• Be certain to complete at least task #2, asking questions of Mr. Gordon as needed.
• Get started on task #3 to further your understanding.