androidandroid-activityrecreate

how to check if android going to recreate activity or destroy?

I have an android studio project. When I am rotating screen, android destroys and recreates main activity. How can I check during the destruction, if android going to recreate activity?

Solution

  • You can determine if the activity is finishing by user choice (user chooses to exit by pressing back for example) using isFinishing() in onDestroy.

      @Override
  protected void onDestroy() {
    super.onDestroy();
    if (isFinishing()) {
      // wrap stuff up
    } else { 
      //It's an orientation change.
    }
  }

    Another alternative (if you're only targeting API>=11) is isChangingConfigurations.

      @Override
  protected void onDestroy() {
    super.onDestroy();
    if (isChangingConfigurations()) {
      //It's an orientation change.
    }
  }