how to get multiple parameter in swift - swiftui

Question

I am new to swift and I am doing a project to create a qr code generator with multiple parameters. I have tried add a parameter with date and it worked.
I don't know how to add more parameters in swift for qr code generator and i want to add more than 4 parameters. When i tried to add parameter, func generateqrcode (default: String, num: Int, time: Date, address: String)-> UIImage {....} after I added the parameters which I have wrotten above sentences, what should i write for the body?
My Orignal Code:
import Foundation
import SwiftUI
import CoreImage.CIFilterBuiltins
struct GenerateQRCode: View {
#State var default = "A1"
#Binding var time: Date
#State var address = "abcdefgh"
#Binding var num: Int
let filter = CIFilter.qrCodeGenerator()
let cont = CIContext()
var dateFormatter: DateFormatter {
let df = DateFormatter()
df.dateFormat = "HH:mm"
return df
}
var body: some View {
NavigationView{
Image(uiImage: imageGenerate(default: default, address: address, time: time, num: num))
.interpolation(.none)
.resizable()
.frame(width: 150, height: 150, alignment: .center)
}.navigationBarBackButtonHidden(true)
}
func generateqrcode(default: String, address: String, time: Date, num: Int)-> UIImage {
let str = dateFormatter.string(from: start)
let data = str.data(using: .utf8)
filter.setValue(data, forKey: "inputMessage")
if let qr = filter.outputImage {
if let qrImage = cont.createCGImage(qr, from: qr.extent){
return UIImage(cgImage: qrImage)
}
}
return UIImage(systemName: "xmark") ?? UIImage()
}
}
What should I add or change for the body? I have tried in my code.
Orignal Version:
func generateqrcode (_ time: Date)-> UIImage {
let str = dateFormatter.string(from: start)
let data = str.data(using: .utf8)
filter.setValue(data, forKey: "inputMessage")
if let qr = filter.outputImage {
if let qrImage = cont.createCGImage(qr, from: qr.extent){
return UIImage(cgImage: qrImage)
}
}
return UIImage(systemName: "xmark") ?? UIImage()
}
Updated Version(Body didn't change same as original version):
func generateqrcode(default: String, address: String, time: Date, num: Int)-> UIImage {
let str = dateFormatter.string(from: start)
let data = str.data(using: .utf8)
filter.setValue(data, forKey: "inputMessage")
if let qr = filter.outputImage {
if let qrImage = cont.createCGImage(qr, from: qr.extent){
return UIImage(cgImage: qrImage)
}
}
return UIImage(systemName: "xmark") ?? UIImage()
}