Check out example codes for "add border to button swiftui". It will help you in understanding the concepts better.

Code Example 1

Button(action: {
        print("sign up bin tapped")
    }) {
        Text("SIGN UP")
            .frame(minWidth: 0, maxWidth: .infinity)
            .font(.system(size: 18))
            .padding()
            .foregroundColor(.white)
            .overlay(
                RoundedRectangle(cornerRadius: 25)
                    .stroke(Color.white, lineWidth: 2)
        )
    }

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