Gesturizer
Level 3, Nine Lessons
Create an app that responds to gestures such as taps, pinches, rotations, and swipes. Employ UIGestureRecognizer subclasses that standardize the most common interface gestures. Enhance interface changes with UIView animations as a vehicle for teaching Swift closure expressions.
The Finished App
Familiarize yourself with the project, and demonstrate the app students will build.
Lesson 1
Introduce the UIGestureRecognizer family, and teach students how to detect single tap gestures.
Lesson 2
Configure another UITapGestureRecognizer to detect a double tap.
Lesson 3
Facilitate a refactoring of common code, and refactor a fade-in animation effect to illustrate closure expressions.
Lesson 4
Continue exploring interface animation with a more complex closure expression.
Lesson 5
Demonstrate the interplay between multiple UITapGestureRecognizers, and teach students how to customize UITapGestureRecognizer behavior.
Lesson 6
Introduce multi-touch gestures with a UIPinchGestureRecognizer and explore UIGestureRecognizer state, represented as an enumeration.
Lesson 7
Demonstrate a second multi-touch gesture with a UIRotationGestureRecognizer.
Lesson 8
Facilitate students in detecting a swipe gesture, and teach students how to configure a UISwipeGestureRecognizer.
Lesson 9
Explore using UIResponder methods to handle motion events such as shaking.
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