SwiftUI SwiftUI Views and Layout 3

Question 1

How do you make a SwiftUI image resize to fill its frame?

Accepted Answer

.resizable().scaledToFill()

Answer

.frame().resize()

Answer

.scaleEffect()

Answer

.aspectRatio()

Question 2

Which modifier rounds the corners of a SwiftUI view?

Accepted Answer

Both A and B work

Answer

.clipShape(RoundedRectangle(cornerRadius:))

Answer

.cornerRadius()

Answer

.border(cornerRadius:)

Question 3

What is the purpose of `ViewBuilder` in SwiftUI?

Accepted Answer

It allows closures to return multiple views as a single view

Answer

It compiles views to native code

Answer

It validates view hierarchies

Answer

It manages view identity

Question 4

How do you conditionally show a view in SwiftUI?

Accepted Answer

if condition { view }

Answer

view.visible(condition)

Answer

view.opacity(condition ? 1 : 0) only

Answer

show(view, when: condition)

Question 5

What does the `.overlay()` modifier do in SwiftUI?

Accepted Answer

Draws another view on top of the modified view

Answer

Replaces the view with another

Answer

Sets a translucent background

Answer

Applies a shadow over the view

Question 6

Which modifier adds a drop shadow to a SwiftUI view?

Accepted Answer

.shadow()

Answer

.dropShadow()

Answer

.elevation()

Answer

.shade()