It is possible that your member variables don’t exist anymore because the FragmentManager
in your Activity
is dying with all of your fragments.
You need to override the method onSaveInstanceState
of your Activity
class as well, because you need to save the Activity
state before you save the Fragments
state.
As the documentation says:
There are many situations where a fragment may be mostly torn down (such as when placed on the back stack with no UI showing), but its state will not be saved until its owning activity actually needs to save its state.
UPDATE
In your Activity
onSaveInstanceState
and onRestoreInstanceState
, try saving you Fragment
references and then restore them with something like this:
public void onSaveInstanceState(Bundle outState){
getFragmentManager().putFragment(outState, "myfragment", myfragment);
}
public void onRestoreInstanceState(Bundle inState){
myFragment = getFragmentManager().getFragment(inState, "myfragment");
}
Tell me then if you had luck! 🙂