AnimationExtension.kt

class AnimatorExtension {
  
    // Skipping the initialization
    private val animator: Animator? = null

    // Normal Usage
    fun normalAnimationListener() {
        animator?.addListener(
                onStart = {

                },
                onEnd = {

                },
                onCancel = {

                },
                onRepeat = {

                }
        )
    }

    // For Kitkat and above
    fun animationPauseListener() {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            animator?.addPauseListener(
                    onPause = {

                    },
                    onResume = {

                    }
            )
        }
    }

    // Also set individual animation listeners
    fun individualAnimationListener() {
        animator?.doOnPause {

        }
        animator?.doOnCancel {

        }
        animator?.doOnEnd {

        }
        animator?.doOnRepeat {

        }
        animator?.doOnResume {

        }
        animator?.doOnStart {

        }
    }
}