When should you use Looper in Android development?

In Android development, a Looper is essential when you need to manage a message queue for threads that need to handle UI-related tasks or perform actions periodically. A Looper allows you to run a thread's message queue and facilitates communication between threads, specifically helping in running code in the context of the main thread. You should use a Looper in scenarios such as:

• Executing background tasks while updating the UI based on the results.
• Performing non-blocking operations in background threads while keeping the main thread responsive.
• Scheduling actions at specific intervals.