How can i implement shared viewmodel across fragments in java?

Question

I am new to android and working on an application where i have use shared ViewModel across fragments there are a lot of help for kotlin but for java there is nothing. Please guide me if possible.?

Did you read [the documentation](https://developer.android.com/topic/libraries/architecture/viewmodel#sharing) and its Java example? — CommonsWare, Jul 27 '22 at 12:40
Also [fragment documentation](https://developer.android.com/guide/fragments/communicate). — Kozmotronik, Jul 27 '22 at 12:43
@CommonsWare yes i have read them but did not get it properly.. — Vivek M Fauzdar, Jul 27 '22 at 13:07
ViewModelProviders has been deprecated - see [this discussion](https://stackoverflow.com/questions/53903762/viewmodelproviders-is-deprecated-in-1-1-0) — oceanodroma, Nov 06 '22 at 12:09

score 0 · Answer 1 · answered Jul 28 '22 at 03:19

Follow the documentation, and remember to use the same ViewModelStoreOwner, like this:

public class SharedViewModel extends ViewModel {

}

public class FragmentA extends Fragment {
    private SharedViewModel model;
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //pass the host Activity
        model = ViewModelProviders.of(getActivity()).get(SharedViewModel.class);
    }
}

public class FragmentB extends Fragment {
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
         //pass the host Activity
        SharedViewModel model = ViewModelProviders.of(getActivity()).get(SharedViewModel.class);
    }
}

How can i implement shared viewmodel across fragments in java?

1 Answers1