animation(_:body:)

Declaration

func animation(_ animation: Animation?, body: (EmptyHoverEffectContent) -> some HoverEffectContent) -> some HoverEffectContent

Parameters

• animation:

  The animation to use for the effect transition. If nil the effects will not animate.

• body:

  A block used to specify the effects to animate. You must use the provided content to build the effects, or behavior is undefined.

Return Value

A new effect that combines the effects defined in body with

Discussion

Any effects defined within the body closure will be combined with this effect, and the animation will used to animate those effects’ changes when the effects are applied.

In the following example, the view will use the .easeIn animation when activating the effect, but .easeOut when the effect becomes inactive:

Color.red
    .hoverEffect { effect, isActive, proxy in
        effect.animation(isActive ? .easeIn : .easeOut) {
            $0.opacity(isActive ? 1 : 0.5)
        }
    }