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Android

AND-401 · Question #112

Which of the following is a rule that developers must always follow when writing multi- threaded Androidapplications? (Choose two)

The correct answer is C. The UI thread must never be blocked. D. The Android UI must not be accessed from outside the UI thread. See the full explanation below for the reasoning.

Question

Which of the following is a rule that developers must always follow when writing multi- threaded Androidapplications? (Choose two)

Options

  • AA worker thread must not be created from inside the UI thread.
  • BEach UI thread must not create more than one worker thread.
  • CThe UI thread must never be blocked.
  • DThe Android UI must not be accessed from outside the UI thread.

How the community answered

(33 responses)
  • A
    15% (5)
  • B
    9% (3)
  • C
    76% (25)

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