---
title: systemOverlays
framework: swiftui
role: symbol
role_heading: Type Property
path: swiftui/hovereffectgroup/systemoverlays
---

# systemOverlays

A HoverEffectGroup that becomes active when system overlays are visible.

## Declaration

```swift
static var systemOverlays: HoverEffectGroup { get }
```

## Discussion

Discussion Use this group to synchronize effects with system overlays. In the following example, the back button will be hidden whenever system overlays are hidden. Button("Back") { }     .hoverEffect(in: .systemOverlays) { e, isActive, _ in         e.animation(             isActive ? .systemOverlayAppearance : .systemOverlayDelayedDisappearance         ) {             $0.opacity(isActive ? 1 : 0)         }     }     .persistentSystemOverlays(.hidden) This example uses the systemOverlayAppearance and systemOverlayDisappearance animations to ensure the effect using the same timing as system overlays. If persistentSystemOverlays is not .hidden, this group will always be active.