Drag and Pan

[jpwhitaker]

Is there any way to implement drag and pan like in photos/maps?

Great package btw, very helpful 🙏.

[hanrw]

Try this. ge

import SwiftUI

struct ZoomableScrollView<Content: View>: UIViewRepresentable {
    
  private var content: Content

  init(@ViewBuilder content: () -> Content) {
    self.content = content()
  }

  func makeUIView(context: Context) -> UIScrollView {
    let scrollView = UIScrollView()
    scrollView.delegate = context.coordinator
    scrollView.maximumZoomScale = 20
    scrollView.minimumZoomScale = 1
    scrollView.bouncesZoom = true
   
    let hostedView = context.coordinator.hostingController.view!
    hostedView.translatesAutoresizingMaskIntoConstraints = true
    hostedView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
    hostedView.frame = scrollView.bounds
    scrollView.addSubview(hostedView)
    return scrollView
  }

  func makeCoordinator() -> Coordinator {
    return Coordinator(hostingController: UIHostingController(rootView: self.content))
  }

  func updateUIView(_ uiView: UIScrollView, context: Context) {
    uiView.setZoomScale(1.0, animated: true)
    context.coordinator.hostingController.rootView = self.content
    assert(context.coordinator.hostingController.view.superview == uiView)
  }

  class Coordinator: NSObject, UIScrollViewDelegate {
    var hostingController: UIHostingController<Content>
    init(hostingController: UIHostingController<Content>) {
      self.hostingController = hostingController
    }
    func viewForZooming(in scrollView: UIScrollView) -> UIView? {
      return hostingController.view
    }
  }
}