Who knows why there are no dim/black out animation...

# compose

[Konstantin Tskhovrebov]

Who knows why there are no dim/black out animations?
https://developer.android.com/develop/ui/compose/animation/composables-modifiers#enter-exit-transition

with the current API I am not able to configure slide+dim navigation animation. Or I am wrong?

[romainguy]

How do you define a dim/black out animation in your case?

[romainguy]

(what I mean is: what would the visual result be, just to understand your question)

[Frank Bouwens]

https://developer.android.com/develop/ui/compose/graphics/draw/modifiers#drawing-modifiers

if you would look at the first gif-animation on this page.

[Konstantin Tskhovrebov]

something like an animation of the foreground here

Screen Recording 2025-02-11 at 11.52.51.mov

[Konstantin Tskhovrebov]

I would like to apply the animation to the previous screen with a predictive back

[Sanlorng]

The current navhost does not support exposing the animation process, so it seems difficult to implement this feature

[Konstantin Tskhovrebov]

@Jeremy Woods @romainguy is it possible to do something here?

[Jeremy Woods]

@Doris Liu is this type of thing possible with animations? Is there more we would need to expose at the Navhost?

[Doris Liu]

You could specify an Enter/ExitTransition on any layout in an AnimatedVisibilityScope (i.e. if you use AnimatedVisibility/AnimatedContent ) using Modifier.animateEnterExit . Is this more than a simple fade out of the black background?

[Sanlorng]

I want to make the predictive back gesture animation different from the normal navigation back animation, but this cannot be achieved in the current navhost api. For example, the normal navigate back is MaterialAsixX animation, while the predictive back gesture animation is implemented according to the official predictive back gesture animation(scale small and offset x and y depends back gesture position and progress).

[Konstantin Tskhovrebov]

One more case: to make a different predictive back gesture animation depending on the gesture side

[Konstantin Tskhovrebov]

at the moment there is no way to redefine the internal back handler in the compose NavHost

[Konstantin Tskhovrebov]

CMP-4528 Make iOS-like animations in navigation-compose by default