Discussion

[L1cardo]

I found a way to rasterize views to images directly using a button.

For example:
If you just do this, it will not work. Because the text is ""

@State private var text = ""

Button("rasterize") {
    Text(text).rasterize()
}

But here is the tricky part, you can change the @State text in another view and pass it by @Binding

//first view
@State private var text = ""

Button("rasterize") {
    Text(text).rasterize()
}

// second view
@Binding var text: String

TextField("Change the text here", text: $text)

I don't know if there is better way to do this, and I made an app.

[eneko]

I cannot believe I didn't see this comment until today. Supper happy to see what you made. Did you ever release the app to the App Store?

[L1cardo]

It is really tricky in SwiftUI to make a view into image. This is the project shown on the gif, this is a self-use-only project, codes are very rough.
https://github.com/L1cardo/AppShot