Clear all activities in a task?

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Yes that should work fine. You could use:

  • FLAG_ACTIVITY_CLEAR_TOP
  • FLAG_ACTIVITY_SINGLE_TOP
  • FLAG_ACTIVITY_CLEAR_TASK
  • FLAG_ACTIVITY_NEW_TASK

which ensures that if an instance is already running and is not top then anything on top of it will be cleared and it will be used, instead of starting a new instance (this useful once you’ve gone Welcome activity -> Activity A and then you want to get back to Welcome from A, but the extra flags shouldn’t affect your case above).

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