SwiftUI SwiftUI Gestures and Interactions 2

Question 1

Which gesture type in SwiftUI is used to detect pinching motions for zooming?

Accepted Answer

MagnificationGesture

Answer

PinchGesture

Answer

ZoomGesture

Answer

ScaleGesture

Question 2

What is the purpose of the `@GestureState` property wrapper in SwiftUI?

Accepted Answer

To store transient gesture values that reset when the gesture ends

Answer

To persist gesture data across app sessions

Answer

To define the initial state of a gesture

Answer

To track gesture history

Question 3

How do you chain two gestures so that the second gesture only starts after the first succeeds?

Accepted Answer

firstGesture.sequenced(before: secondGesture)

Answer

firstGesture.then(secondGesture)

Answer

firstGesture.followed(by: secondGesture)

Answer

SequentialGesture(first, second)

Question 4

Which property of RotationGesture.Value gives the angle of rotation?

Accepted Answer

rotation

Answer

angle

Answer

radians

Answer

degrees

Question 5

When using DragGesture, which method is called to handle ongoing movement during the drag?

Accepted Answer

.onChanged { }

Answer

.onMove { }

Answer

.onDrag { }

Answer

.whileDragging { }

Question 6

What does the `minimumDistance` parameter in DragGesture control?

Accepted Answer

How far the user must move before the gesture is recognized

Answer

The maximum allowed drag length

Answer

The velocity threshold for the gesture

Answer

The distance from screen edge required

Question 7

Which modifier allows a SwiftUI view to be dragged and dropped using the drag-and-drop API?

Accepted Answer

.draggable()

Answer

.onDrag()

Answer

.dragSource()

Answer

.draggableItem()