## Zoom / level change

- Use case: Pinch-zoom that steps through discrete levels (1x, 2x, 3x) — a tick per level, camera-app style.
- Feel: One .levelChange tick per zoom step; boundaries feel like gentle gear changes.
- APIs: .sensoryFeedback(.levelChange), MagnifyGesture
- Minimum OS: iOS 17+

### SwiftUI (iOS 17+)

```swift
import SwiftUI

struct SteppedZoomView: View {
    @State private var scale: CGFloat = 1
    @State private var committed: CGFloat = 1
    private var level: Int { Int(scale.rounded()) } // 1x, 2x, 3x…

    var body: some View {
        Image(systemName: "photo")
            .font(.system(size: 80))
            .frame(maxWidth: .infinity, maxHeight: 300)
            .scaleEffect(scale)
            .gesture(
                MagnifyGesture()
                    .onChanged { value in
                        scale = min(4, max(1, committed * value.magnification))
                    }
                    .onEnded { _ in
                        committed = CGFloat(level)     // settle on a step
                        withAnimation(.snappy) { scale = committed }
                    }
            )
            .sensoryFeedback(.levelChange, trigger: level)
            .overlay(alignment: .bottom) {
                Text("\(level)x").font(.caption.bold()).padding(6)
                    .background(.thinMaterial, in: Capsule())
            }
    }
}
```