Fragment not calling onPause or onStop when using replace

Question

I have this odd problem that my fragments are not calling any of the end lifecycle methods like onPause and onStop when I replace it with another fragment. I replace the fragment like this

public static void replaceFragment(Activity activity, int layoutId, Fragment fragment, String title, String shortTitle) {
    FragmentTransaction transaction = activity.getFragmentManager().beginTransaction().replace(layoutId, fragment);
    transaction.addToBackStack(title);
    transaction.setBreadCrumbTitle(title);
    transaction.setBreadCrumbShortTitle(shortTitle);
    transaction.commit();
    activity.getFragmentManager().executePendingTransactions();     
}

I think it is somehow keeping my fragment alive even if i popBackStack cause after replacing the same fragment again after it have been shown ones before then it also calls the onStop before onStart?

Answer 1

I solved the problem :)

It was because my app on tablet added two fragments in one main fragment, and when I then replaced the fragment containing the two other fragment theirs onPause and onStop are not called so by calling theirs onStop in the main fragments onStop I have solved this problem.

Thanks to all for trying to help out i did't know that the method I was using was'n really the problem but that child fragments not are destroyed with their parent!

Answer 2

Using your exact code inside of an abstract class, I can't replicate this issue. I created an abstract class, ReplaceFragment.

My Main class extends FragmentActivity and sets up the content view for the fragment.

Inside the Fragment class, I set up a ListView. When a list item is clicked, I'm doing the following:

      getListView().setItemChecked(index, true);

      // Check what fragment is currently shown, replace if needed.
      DetailsFragment details = (DetailsFragment) getFragmentManager().findFragmentById(R.id.details);
      if (details == null || details.getShownIndex() != index) {
        details = DetailsFragment.newInstance(index);
        
        ReplaceFragment.replaceFragment(...);
      }

My output in LogCat on each click is:

10-07 12:19:07.688: V/FragmentManager(861): remove: DetailsFragment{40527d48 #1 id=0x7f040003} nesting=2

10-07 12:19:07.688: V/FragmentManager(861): movefrom RESUMED:DetailsFragment{40527d48 #1 id=0x7f040003}

10-07 12:19:07.688: E/DetailsFragment(861): Details onPause()

10-07 12:19:07.688: V/FragmentManager(861): movefrom STARTED: DetailsFragment{40527d48 #1 id=0x7f040003}

10-07 12:19:07.688: E/DetailsFragment(861): Details onStop()

10-07 12:19:07.699: V/FragmentManager(861): movefrom STOPPED: DetailsFragment{40527d48 #1 id=0x7f040003}

Post further details of your implementation so that can help you further.