How to get the iPhone's screen width in SwiftUI?

Question

I want to resize an Image frame to be a square that takes the same width of the iPhone's screen and consequently the same value (screen width) for height.

The following code don't work cause it gives the image the same height of the view.

var body: some View {
        Image("someImage")
            .resizable()
            .frame(minWidth: 0, maxWidth: .infinity, minHeight: 0, maxHeight: .infinity, alignment: .center)
            .clipped()
    }

Answer 1

You can create a UIScreen extension for the same. Like:

extension UIScreen{
   static let screenWidth = UIScreen.main.bounds.size.width
   static let screenHeight = UIScreen.main.bounds.size.height
   static let screenSize = UIScreen.main.bounds.size
}

Usage:

UIScreen.screenWidth

Answer 2

Try using Geometry Reader

let placeholder = UIImage(systemName: "photo")! // SF Symbols

struct ContentView: View {
    var body: some View {
        GeometryReader { geometry in
            Image(uiImage: placeholder) 
            .resizable()
            .frame(width: geometry.size.width, height: geometry.size.height, alignment: .center)
            // .frame(minWidth: 0, maxWidth: .infinity, minHeight: 0, maxHeight: .infinity, alignment: .center)
            .clipped()
        }
    }
}

Answer 3

You can use UIScreen.main.bounds .width or .height

.frame(
   width:UIScreen.main.bounds.width,
   height:UIScreen.main.bounds.height
)