What is the purpose of the Content Provider mechanism in Android applications?

Content Provider in Android is used to organize access to data between different applications. It allows:

• Secure sharing of data (e.g., contacts, media files) between applications.
• Encapsulating data access logic and providing a unified interface (URI) for reading and writing.
• Managing data access rights through permissions.

Example: The "Contacts" app provides a Content Provider so that other applications can read or modify contacts through a standard interface without direct access to the database.