View.kt

val View.lifecycleOwner: LifecycleOwner
    get() = getTag(R.id.view_lifecycle_owner) as? LifecycleOwner ?: object : LifecycleOwner,
        LifecycleEventObserver {
        private val lifecycle = LifecycleRegistry(this)

        init {
            doOnAttach {
                findViewTreeLifecycleOwner()?.lifecycle?.addObserver(this)
            }
            doOnDetach {
                findViewTreeLifecycleOwner()?.lifecycle?.removeObserver(this)
                lifecycle.currentState = Lifecycle.State.DESTROYED
            }
        }

        override fun onStateChanged(source: LifecycleOwner, event: Lifecycle.Event) {
            lifecycle.currentState = event.targetState
        }

        override fun getLifecycle(): Lifecycle {
            return lifecycle
        }
    }.also {
        setTag(R.id.view_lifecycle_owner, it)
    }