How to cut an image into 2 using SwiftUI

Question

I have an image like this

I'd like to split it into 2 pieces across the center using SwiftUI. Leaving me with 2 separate images that I can access. However I can't figure out how to split the original into a top and bottom piece. The two pieces must line up to create the original image.

Top Image:

Bottom Image:

I've tried use a geometry reader to read the height and width and return an image with half the height, but the two images don't like up like this.

GeometryReader { geo in
    image
       .frame(width: geo.width, height: geo.height / 2, alignment: .center)
       .clipped()
}

Do you want to split it visually (ie. only on screen) or physically (ie on two separated half-height images)? — Asperi, Apr 15 '21 at 07:52
@Asperi physically, so I have 2 separate images that I can put back together later (weird I know). — telaCode, Apr 15 '21 at 13:52

ios coder · Accepted Answer · 2021-04-14T23:16:27.643

Here a way of doing this: with using clipped() modifier.

struct ContentView: View {
    
    @State private var spacing: CGFloat = CGFloat()
    @State private var imageSize: CGSize = CGSize()
    
    var body: some View {
        
        let image = Image(systemName: "star")
            .resizable()
            .scaledToFit()
            .frame(width: 200, height: 200, alignment: .center)
            .background(Color.yellow)
            .cornerRadius(10.0)
            .background(GeometryReader { proxy in Color.clear.onAppear() { imageSize = proxy.size } })
        
        
        return ZStack {
            
            VStack(spacing: spacing) {
                
                image.frame(width: imageSize.width, height: imageSize.height/2, alignment: .top).clipped()
                
                image.frame(width: imageSize.width, height: imageSize.height/2, alignment: .bottom).clipped()
            }
            
            VStack { Spacer(); Slider(value: $spacing,in: 0.0...100.0) }
            
        }
        .padding()
        .compositingGroup()
        .shadow(radius: 10.0)
        
    }
}

How to cut an image into 2 using SwiftUI

1 Answers1