AnimationExtensions.kt

fun AppCompatActivity.configureSlideFromBottomEnterTransition() {
    val decor = window.decorView
    val actionBarId = R.id.action_bar_container

    val transitionSet = TransitionSet()

    val fadeActionBarAnimation = Fade().apply { duration = 100 }
    fadeActionBarAnimation.addTarget(decor.findViewById(actionBarId) as? View)

    transitionSet.addTransition(fadeActionBarAnimation)
    transitionSet.addTransition(Fade().apply { duration = 300; excludeTarget(decor.findViewById(actionBarId) as? View, true) })
    transitionSet.addTransition(Slide().apply { duration = 500; slideEdge = Gravity.BOTTOM ; excludeTarget(decor.findViewById(actionBarId) as? View, true)})

    window.enterTransition = transitionSet
    window.enterTransition.excludeTarget(android.R.id.statusBarBackground, true)
    window.enterTransition.excludeTarget(android.R.id.navigationBarBackground, true)
}