SwiftUI-iOS Interview Preparations-Part 2

Interview Questions about SwiftUI, iOS and Xcode

1. What is the role of the environment in SwiftUI?

The environment is a way to pass data and settings down the view hierarchy in SwiftUI. You can use the environmentObject() and environment() modifiers to set values in the environment.

2. How to create a custom view in SwiftUI?

To create a custom view in SwiftUI, you can create a new struct that conforms to the View protocol and define its body property. You can also use the custom modifier to customize the appearance of a view.

3. How to use the PreviewProvider in SwiftUI?

The PreviewProvider is a protocol that allows you to see a live preview of your views in Xcode. To use the PreviewProvider, you can create a struct that conforms to the PreviewProvider protocol and define its previews property.

4. How does SwiftUI handle data flow and state management?

SwiftUI uses a declarative approach to data flow and state management, where the developer declares the desired state, and the framework updates the view accordingly. The main tool for this is the @State property…