How is the display of a specific screen initiated in an Android application?

In an Android application, displaying a specific screen is usually initiated by launching an Activity. For this, an Intent is created, which indicates which screen (Activity) to open, and the method startActivity(intent) is called.

Example:

val intent = Intent(this, DetailActivity::class.java)
startActivity(intent)

Here, this is the current context, and DetailActivity is the class of the screen to be shown. Thus, the system launches a new screen and displays it to the user.