CODEWITHSUNDEEP
androidandroid-fragments
DolDurma
DolDurma

Reputation: 17321

Android pass View as an object to fragment

I'm more googling to find how can i pass simple view as an object to fragment, but i can't.

for example in MainActivity i have simple view as :

TextView text = (TextView) findviewById(R.id.tv_text);

now i want to pass that to fragment. this below code is my attach Fragment on MainActivity

MainActivity :

public void attachFragment() {
    fts = getActivity().getFragmentManager().beginTransaction();
    mFragment = new FragmentMarketDetail();
    fts.replace(R.id.cardsLine, mFragment, "FragmentMarketDetail");
    fts.commit();
}

and this is my Fragment:

public class FragmentMarketDetail extends Fragment implements ObservableScrollViewCallbacks {
    public static final String SCROLLVIEW_STATE = "scrollviewState";
    private ObservableScrollView scrollViewTest;
    private Context    context;
    private int scrollY;

    public static FragmentMarketDetail newInstance() {
        FragmentMarketDetail fragmentFirst = new FragmentMarketDetail();
        return fragmentFirst;
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_online_categories, container, false);
        scrollViewTest = (ObservableScrollView) view.findViewById(R.id.scrollViewTest);
        scrollViewTest.setScrollViewCallbacks(this);
        return view;
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        context = getActivity().getBaseContext();
    }
}

Upvotes: 5

Views: 6086

Answers (3)

Karen Forde
Karen Forde

Reputation: 1127

It wouldn't be good practise to pass a view that way. If you want to access the view in your activity from within your fragment class, use getActivity() to access the activity to which your fragment is attached, and from there you find your TextView.

TextView text = (TextView) getActivity().findViewById(R.id.tv_text);

Upvotes: 5

wanpanman
wanpanman

Reputation: 378

How about adding a set function in your custom fragment e.g.

public void setTextView(TextView tv){
    this.tv = tv
}

and then calling it after

mFragment = new FragmentMarketDetail();
mFragment.setTextView(textView)

Upvotes: 4

R. Zagórski
R. Zagórski

Reputation: 20258

Find fragment by tag and invoke a function on it:

mFragment = (FragmentMarketDetail ) getActivity().getFragmentManager().findFragmentByTag(FragmentMarketDetail .class.getSimpleName());
mFragment.passTextView(textView);

Of course fragment must be added to backstack.

Upvotes: 1

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