How to apply animation when I press back button for component of Activity in Kotlin?

I want to apply animation when I press back button from fragment.

For this, I know that I can use overridePendingTransition like below.

override fun finish() {
        super.finish()
        overridePendingTransition (0, R.anim.slide_down_enter)
    }

Then I can apply animation before closing this fragment.

However this works for all fragment (or activity).

I want to apply only one View of this fragment, but overridePendingTransition doesn’t provides such function.

I tried to give pending like below in onBackPressed.

override fun onBackPressed() {
        super.onBackPressed()
        resumePause = true

        var downAnimation = AnimationUtils.loadAnimation(this, R.anim.slide_down_enter)
        binding.commentLayout.startAnimation(downAnimation)

        Handler().postDelayed({
            finish()
        }, 500)
    }

But It also doesn’t work.

Is there any way to do this?

>Solution :

Hey you can override the onBackPressed method in your activity and apply the animation to the view you want to animate.

Here’s an example:

override fun onBackPressed() {
    val downAnimation = AnimationUtils.loadAnimation(this, R.anim.slide_down_enter)
    binding.commentLayout.startAnimation(downAnimation)
    downAnimation.setAnimationListener(object : Animation.AnimationListener {
        override fun onAnimationStart(animation: Animation?) {}

        override fun onAnimationEnd(animation: Animation?) {
            finish()
            overridePendingTransition(0, R.anim.slide_down_enter)
        }

        override fun onAnimationRepeat(animation: Animation?) {}
    })
}