Passing an Object from an Activity to a Fragment

Question

I have an Activity which uses a Fragment. I simply want to pass an object from this Activity to the Fragment.

How

Answer 1

Passing arguments by bundle is restricted to some data types. But you can transfer any data to your fragment this way:

In your fragment create a public method like this

public void passData(Context context, List list, int pos) {
    mContext = context;
    mLexItemList = list;
    mIndex = pos;
}

and in your activity call passData() with all your needed data types after instantiating the fragment

        WebViewFragment myFragment = new WebViewFragment();
        myFragment.passData(getApplicationContext(), mLexItemList, index);
        FragmentManager fm = getSupportFragmentManager();
        FragmentTransaction ft = fm.beginTransaction();
        ft.add(R.id.my_fragment_container, myFragment);
        ft.addToBackStack(null);
        ft.commit();

Remark: My fragment extends "android.support.v4.app.Fragment", therefore I have to use "getSupportFragmentManager()". Of course, this principle will work also with a fragment class extending "Fragment", but then you have to use "getFragmentManager()".