Save state of a container (LinearLayout)

Question

I have two fragments.

In first fragment I have a container static (LinearLayout) that to the view of fragment. In this container i do a inflation of several views.

I change to a second fragment, but when i return to the first fragment the views inflated disappeared.

How I can save the state of the container? Someone can give me a example? Thanks for yout help and attention

Answer 1

onCreateView is being called again upon returning and your fragment is being recreated. One solution is to save your fragment state in onSaveInstanceState and reload it in onCreateView:

public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
    ..
    if (savedInstanceState != null) {
       // reload state
    }
    ..
}

public void onSaveInstanceState (Bundle outState) {
    // save dynamic state in outState
}

EDIT:

I've found this to work if you would like to keep the actual view:

private View mLayout;
public View onCreateView(LayoutInflater inflater, ViewGroup container,
    Bundle savedInstanceState) {

    if (mLayout == null) {
      // this is the first time onCreateView has been called
      mLayout = inflater.inflate(..);
    } else {
      // remove previous parent
      ViewParent parent = mLayout.getParent();
      if (parent != null)
        ((ViewGroup) parent).removeView(mLayout);
    }
    return mLayout;
}

Answer 2

The problem is with the saveinstance. The fragment save the state of the views that belongs to the fragment, but the other view that result of the inflations disappear.

I don't know how save the state (when change of fragment) inside a container, that change several times (dinamic)