How I can save a view combined with my Image Data in SwiftUI

Question

enter image description here

I am working on a sticker maker app. So used ZStack to add text on the photo. I want to save my photo to gallery with these text elements added by me .But my code only saving the image not the text elements . So help me to get rid of this .

My code as bellow :

class ImageSaver : NSObject {

var successHandler: (() -> Void)?
var errorHandler: ((Error) -> Void)?

@ObservedObject var model : TextBoxModel = TextBoxModel()
@Published var rect : CGRect = .zero


func writeToPhotoAlbum(imageData : Data){
    
    
    let SwiftUIView = ZStack{
        ForEach(model.textBoxes){box in
            ZStack {
                Text(box.text)
                    .font(.custom(box.textFont,size : CGFloat(box.textSize)))
                    .foregroundColor(box.textColor)
                    .padding(box.bgPadding)
                    .background(
                        ZStack {
                            RoundedRectangle(cornerRadius: box.bgRadius)
                                .fill(box.bgColor.opacity(box.bgSize))
                            
                            RoundedRectangle(cornerRadius: 5)
                                  .stroke(Color.black,style : StrokeStyle(
                                                lineWidth : 1, lineCap : .round , dash : [5]
                                            ))                                                
                        }       
                    )
                    .opacity(box.textOpacity)
                    .shadow(color: box.shadowColor, radius: box.shadowSize)
                    .rotationEffect(box.rotationAngle)
                   
            }                
            .offset(box.offset)            
        }           
    }
    .frame(width: UIScreen.main
            .bounds.width, height: UIScreen.main
            .bounds.width)
    
    
    let controller = UIHostingController(rootView: SwiftUIView).view!
    
    controller.frame = rect
    
    controller.backgroundColor = .clear
    
    
    
    controller.drawHierarchy(in: CGRect(origin: .zero, size: rect.size), afterScreenUpdates: true)
    

    
    if let image = UIImage(data: imageData),let cgImage = image.cgImage?.cropping(to: image.cropRect()){
        
        guard let pngData =  UIImage(cgImage: cgImage).pngData() else { return }
        guard let finalImage = UIImage(data: pngData) else { return }
        
        UIImageWriteToSavedPhotosAlbum(finalImage, self, #selector(saveError), nil)
        
    }
}