iOS Development For Beginners 4

Question 1

In SwiftUI, what is the basic building block for displaying text on screen?

Accepted Answer

Text

Answer

The Text view displays read-only text in SwiftUI.

Question 2

Which SwiftUI container arranges its child views vertically?

Accepted Answer

VStack

Answer

A VStack stacks its child views vertically.

Question 3

Which SwiftUI container arranges views horizontally side by side?

Accepted Answer

HStack

Answer

An HStack arranges its child views horizontally.

Question 4

In SwiftUI, which property wrapper creates mutable state owned by a view?

Accepted Answer

@State

Answer

@State declares a source of truth for mutable, view-local data in SwiftUI.

Question 5

What does a SwiftUI Button require to respond to taps?

Accepted Answer

An action closure

Answer

A SwiftUI Button takes an action closure that runs when tapped.

iOS Development Practice Test