onLoaderReset no being called

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I'm a beginner to Android, so please bear with me. I'm using a CursorLoader in my Fragment class to move data from my content provider to my UI. Here's the method I use to put data into my content provider, which is in my MainActivity file:

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    if (savedInstanceState == null) {
        getSupportFragmentManager().beginTransaction()
                .add(R.id.container, new MainFragment())
                .commit();
    }

    provider = new TestProvider();
    providerInsert();
}

...

public void providerInsert() {
    ContentValues values = new ContentValues();
    values.put(TestContract.FIRST_COLUMN, 3);
    values.put(TestContract.SECOND_COLUMN, "hello.");
    final Uri uri = getContentResolver().insert(TestContract.CONTENT_URI, values);
}

provider was initiallized as a TestProvider(my implementation of ContentProvider) at the class level. Here's the loader I implement in the fragment:

public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {

    View rootView = inflater.inflate(R.layout.fragment_main, container, false);

    getLoaderManager().initLoader(URL_LOADER, null, MainFragment.this);
    ListView mListView = (ListView) rootView.findViewById(R.id.list_view);
    mAdaptor = new SimpleCursorAdapter(
            rootView.getContext(),
            R.layout.test_list_item,
            null,
            mProjections,
            mTo,
            0
    );
    mListView.setAdapter(mAdaptor);

    return rootView;
}

@Override
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
    switch(id) {
        case (URL_LOADER): {
            return new CursorLoader(
                    getActivity(),
                    TestContract.CONTENT_URI,
                    mProjections,
                    null,
                    null,
                    null
            );
        }
        default: {
            return null;
        }
    }
}

@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
    mAdaptor.changeCursor(data);
}

@Override
public void onLoaderReset(Loader<Cursor> loader) {
    mAdaptor.changeCursor(null);
}

The loader works fine at first. The loader returns a Cursor that is set to the adapter, and the adapter does it's job, displaying the data into the ListView. However, when I rotate the screen, which triggers the onCreate() method of MainActivity, therefore adding new data to the content provider, shouldn't the loader send a new query? In other words, when I rotate the screen, shouldn't the onLoaderReset() and onCreateLoader() methods be called? That's what the Google documentation is telling me, anyways.

Thanks in advance! :)

asked 1 min ago

Shubhang Desai

1

onLoaderReset no being called