A Handler is used to:

  1. Store preferences
  2. Post messages or runnables to a thread's message queue (e.g. delayed tasks)
  3. Draw layouts
  4. Sign APKs
Answer

B) Post messages or runnables to a thread's message queue (e.g. delayed tasks)

Handlers work with Loopers and MessageQueues.

Computer Science MCQ · More Threading and Publishing Android Applications MCQs · Practise