EditText.setText() Null Pointer Exception

Question

I have this NPE that is driving me crazy, maybe it's just "tunnel vision" but I can't solve it. I have a fragment inside an activity, and in the activity's onCreate() I instantiate fragment. Then later when the fragment is added to activity I call fragments method from the activity. The code is below

transaction = getFragmentManager().beginTransaction();
transaction.replace(R.id.ActionInputFragment, settingsFragment).addToBackStack(null);
transaction.commit();

if(jsonUserData != null)
  settingsFragment.loadUserData(jsonUserData);

In the fragment I have:

@Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);
        this.ctx = getActivity();

    edtFullName = (EditText) getActivity().findViewById(R.id.edtFullNameSettings);

    edtFullName.addTextChangedListener(new TextWatcher .....);
}

Adding the textwatcher works. Below (in the same fragment) is the method whose call generates the error:

public void loadUserData(JSONObject jsonUserData) {
        String fullName;
        try {
            fullName = String.format("%s %s", jsonUserData.getString("first_name"), jsonUserData.getString("last_name"));
        } catch (JSONException e) {
            fullName = "";
        }
        //if(edtFullName != null)
            this.edtFullName.setText(fullName);

    }

I have checked the layout and the editText id is there.

Rod_Algonquin · Accepted Answer · 2014-08-21 01:09:42Z

2

the problem is that this.edtFullName is not yet initialized because onActivityCreated is not called yet thus edtFullName is null upon calling setText() method

You can pass the reference of the EditText in the loadUserData instead in the onActivityCreated

edited Aug 21, 2014 at 1:09

answered Aug 21, 2014 at 1:03

Rod_Algonquin

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2 Comments

mdzeko Over a year ago

I think I got it. Thank you very much. I cannot pass in a reference but I can make the method call not necessary by taking the work to the fragment. Thank You. I will accept you answer as soon as I can, but consider expanding it a bit for future visitors :D

hemanth kumar Over a year ago

@Rod_Algonquin How to pass the reference of edittext to that method?

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