What is the main role and purpose of the Fragment component in app development?

A Fragment is a component of the user interface in Android that represents a part of the screen or behavior within an Activity. Its main role is to enable modular and reusable UI construction, allowing the creation of adaptive interfaces for different screen sizes and orientations.

Fragments allow:

• Breaking down the UI into independent parts that can be dynamically added, replaced, or removed.
• Managing the lifecycle of a UI part separately from the Activity.
• Reusing interface components across different Activities.

For example, on a tablet, you can display a list and details simultaneously in two fragments, while on a phone, you can switch between them.