Isn't there an easy way to pinch to zoom in an image in Swiftui?

Question

I want to be able to resize and move an image in SwiftUI (like if it were a map) with pinch to zoom and drag it around.

With UIKit I embedded the image into a

Answer 1

Here's an alternative approach to @James and @ethoooo 's. The final zoom state and the transient gesture state are kept separate (the transient will always return 1), so it's a state you can set from a button or stepper for example in addition to the gesture itself.

  @State var scrollContentZoom: CGFloat = 1
  @GestureState var scrollContentGestureZoom: CGFloat = 1
  var contentZoom: CGFloat { scrollContentZoom*scrollContentGestureZoom }
  
  var magnification: some Gesture {
    MagnificationGesture()
      .updating($scrollContentGestureZoom) { state, gestureState, transaction in
        print("Magnifed: \(state)")
        gestureState = state
      }
      .onEnded { (state) in
        scrollContentZoom = contentZoom*state
      }
  }