When exactly does the onAttachedToWindow event trigger for a View element in Android?

The onAttachedToWindow event in an Android View element is triggered at the moment when this View is attached to the window, meaning it becomes part of the display hierarchy and is ready to be shown on the screen. This occurs after the View has been added to the View hierarchy and the window it resides in has been created and displayed.

This event is useful for initiating actions that require the View to already be visible or have access to the window, such as starting animations, obtaining the View's dimensions, or registering listeners that depend on the window.