@Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        binding = MyBinding.inflate(inflater, container, false);
        binding.setViewModel(mymodel);
        binding.executePendingBindings();
        return binding.getRoot();
    }

@Override
    public void onSaveInstanceState(Bundle state) {
        super.onSaveInstanceState(state);
        try {

            if (state != null) {
                byte[] data = Parcel.convertToBytes(myviewmodel);
                state.putByteArray("myviewmodel", data);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }

    }

  @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        SystemTools.SetTopContext(this);
        if (savedInstanceState == null) return;
        try {

            byte[] data = savedInstanceState.getByteArray("myviewmodel");
            if (data != null) {
                myviewmodel= (MyViewModel) Parcel.convertFromBytes(data);
            }
        } catch (NullPointerException e) {
        } catch (Exception e) {
            e.printStackTrace();
        }
    }