predictivePopTransitionSpec
fun predictivePopTransitionSpec(predictivePopTransitionSpec: AnimatedContentTransitionScope<Scene<*>>.(Int) -> ContentTransform?): Map<String, Any>
Function to be called on the NavEntry.metadata or Scene.metadata to notify the NavDisplay that, when popping from backstack using a Predictive back gesture, the content should be animated using the provided ContentTransform.
IMPORTANT NavDisplay only looks at the Scene.metadata to determine the predictivePopTransitionSpec, it is the responsibility of the Scene.metadata to decide which predictivePopTransitionSpec to return, whether that be from the NavEntry.metadata or something custom.
Parameters
predictivePopTransitionSpec
the ContentTransform to be used when popping from backStack with predictive back gesture. If this is null, the transition will fallback to the transition set on the NavDisplay