SwiftUI SwiftUI Animations and Transitions

Question 1

What function do you call to animate a state change in SwiftUI?

Accepted Answer

withAnimation()

Answer

Wrapping a state change in `withAnimation {}` causes SwiftUI to animate any resulting view changes.

Question 2

What does the `.animation(_:value:)` modifier do in SwiftUI?

Accepted Answer

Applies an animation only when the specified value changes

Answer

`.animation(_:value:)` scopes the animation to trigger only when the given value changes, preventing unintended animations.

Question 3

Which animation creates a spring effect in SwiftUI?

Accepted Answer

.spring()

Answer

`.spring()` applies a spring-based animation with configurable response, dampingFraction, and blendDuration.

Question 4

What does the `.transition()` modifier control in SwiftUI?

Accepted Answer

How a view enters and exits the view hierarchy

Answer

`.transition()` defines the animation applied when a view is inserted into or removed from the view hierarchy.

Question 5

Which built-in transition slides a view in from the leading edge?

Accepted Answer

.move(edge: .leading)

Answer

`.move(edge: .leading)` slides a view in from or out to the leading edge of the screen.

SwiftUI Practice Test