View Lifecycle owner

MyCustomView.kt

class MyCustomView @JvmOverloads constructor(context: Context, attrs: AttributeSet? = null, defStyleAttr: Int = 0) :
    View(context, attrs, defStyleAttr) {

    private val viewModel = MyViewModel()
    private val viewLifecycleOwner = ViewLifecycleOwner()

    init {
        viewModel.data.observe(viewLifecycleOwner) { data ->
            // ...
        }
    }

    override fun onAttachedToWindow() {
        super.onAttachedToWindow()
        viewLifecycleOwner.onAttachedToWindow()
    }

    override fun onDetachedFromWindow() {
        super.onDetachedFromWindow()
        viewLifecycleOwner.onDetachedFromWindow()
    }
}

ViewLifecycleOwner.kt

class ViewLifecycleOwner : LifecycleOwner {

    private val lifecycleRegistry by lazy {
        LifecycleRegistry(this).also {
            it.handleLifecycleEvent(Lifecycle.Event.ON_START)
        }
    }

    override fun getLifecycle(): Lifecycle = lifecycleRegistry

    fun onAttachedToWindow() {
        lifecycleRegistry.handleLifecycleEvent(Lifecycle.Event.ON_START)
    }

    fun onDetachedFromWindow() {
        lifecycleRegistry.handleLifecycleEvent(Lifecycle.Event.ON_STOP)
    }
}

Thank you for this.