Android Fragment onCreate Activity Null on Screen Rotation

Jun 19, 2018
Activity.onCreate is called before Fragment.onCreate

When activity/fragement is loaded the first, the following sequence is called

  • Activity.onCreate
  • Fragment.onCreate

When screen is rotated, the following sequence is called

  • Fragment.onCreate (thus, activity==null)
  • Activity.onCreate

To avoid inability to access activity from fragment, it is safer to perform initialization code at Fragment.onActivityCreated.

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