What is a View in Android and which part is responsible for its visual display?

In Android, View is the base class for all user interface elements (buttons, text fields, containers, etc.). It is responsible for handling input, sizing, layout, and drawing on the screen.

The visual representation of a View is provided by the onDraw(Canvas canvas) method, which is called by the system when a redraw is necessary. In this method, the content of the View is drawn directly on the screen using the Canvas object.

Thus, View is both a logical and visual UI unit, and onDraw is a key part responsible for rendering.