ListView giving nullpointerException

Question

I get a null pointer exception error when i try to give a name to it. I mean it gives an error while doing R.id.contacts which probably means it's layout doesn't have the listview.

     @Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    DataBaseOperations hell = new DataBaseOperations(getActivity());
    SQLiteDatabase db = hell.getReadableDatabase();
    String[] columns = {mDatabase.Tableinfo.ID,mDatabase.Tableinfo.Contacts_phone,mDatabase.Tableinfo.Contacts_name,mDatabase.Tableinfo.Contact_pic};
    Cursor Contacts = db.query(mDatabase.Tableinfo.contacts, columns, null, null, null, null, null);
    ContactsAdapter adapter = new ContactsAdapter(getContext(), Contacts,0);
    ListView iv = (ListView)lview.findViewById(R.id.contacts);
    iv.setAdapter(adapter);
    Contacts.close();
    lview = inflater.inflate(R.layout.fragment_contacts_list, container, false);
    return lview;
}

as it inflates the layout named fragment-contacts_list.Here is the code for that

   <?xml version="1.0" encoding="utf-8"?>
<ListView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/contacts"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginLeft="16dp"
android:layout_marginRight="16dp"
android:layout_weight="1"
tools:listitem="@layout/fragment_contacts" />

Why is my listview null???

I am new so don't discourage me. – Umer Asif Jan 08 '16 at 19:51 — Umer Asif, Jan 08 '16 at 19:51

score 1 · Accepted Answer · answered Jan 08 '16 at 19:37

Try this, you have to inflate layout before "search" object:

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    DataBaseOperations hell = new DataBaseOperations(getActivity());
    SQLiteDatabase db = hell.getReadableDatabase();
    String[] columns = {mDatabase.Tableinfo.ID,mDatabase.Tableinfo.Contacts_phone,mDatabase.Tableinfo.Contacts_name,mDatabase.Tableinfo.Contact_pic};
    Cursor Contacts = db.query(mDatabase.Tableinfo.contacts, columns, null, null, null, null, null);
    ContactsAdapter adapter = new ContactsAdapter(getContext(), Contacts,0);
    Contacts.close();
    lview = inflater.inflate(R.layout.fragment_contacts_list, container, false);
    ListView iv = (ListView)lview.findViewById(R.id.contacts);
    iv.setAdapter(adapter);
    return lview;
}

you just could have said it. Thanks. i feel stupid. – Umer Asif Jan 08 '16 at 19:55 — Umer Asif, Jan 08 '16 at 19:55

ListView giving nullpointerException

1 Answers1