Explain what the ViewGroup class in Android is and what it is used for.

ViewGroup in Android is a base class for containers that can hold other views or other ViewGroups. It serves to organize and manage the layout of child elements on the screen.

Main functions of ViewGroup:

• Stores and manages a set of child Views.
• Handles their layout and sizing.
• Intercepts and distributes input events (such as touches) among child elements.

Examples of ViewGroup subclasses: LinearLayout, RelativeLayout, ConstraintLayout.

Thus, ViewGroup is used to create complex interface hierarchies, combining multiple elements into a single container with specific layout logic.