I am trying to display all the data from the second column of my database to my ListView inside a ScrollView.
I am using a fragment,
but I'm having a problem using getSupportLoaderManager().initLoader(1, data, this); it sais "getSupportLoaderManager() is undefined method", so I create a new class inside this fragment just as an experiment, and the result is there is no error but when I execute it, there's nothing happening as well ie. the expected data is not showing in my ListView.
Here is my layout:
main.xml
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/main_body"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true"
android:background="@drawable/b">
<ListView
android:id="@+id/lv_countries_main"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</ScrollView>
and the Main.Java
public class Main extends Fragment {
public Main() {
}
Button btn;
TextView tx;
EditText InputSearch;
ArrayAdapter<String> dataAdapter = null;
View rootView;
ScrollView mainBody;
ListView mLVCountries;
SimpleCursorAdapter mCursorAdapter;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
rootView = inflater.inflate(R.layout.main, container, false);
setHasOptionsMenu(true);
getActivity().setTitle("Search");
mLVCountries = (ListView)rootView.findViewById(R.id.lv_countries_main);
mainBody = (ScrollView)rootView.findViewById(R.id.main_body);
return rootView;
}
public class MainMain extends FragmentActivity implements LoaderCallbacks<Cursor> {
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
mLVCountries.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Intent countryIntent = new Intent(getActivity().getApplicationContext(), CountryActivity.class);
// Creating a uri to fetch country details corresponding to selected listview item
Uri data = Uri.withAppendedPath(CountryContentProvider.CONTENT_URI, String.valueOf(id));
// Setting uri to the data on the intent
countryIntent.setData(data);
// Open the activity
startActivity(countryIntent);
}
});
// Defining CursorAdapter for the ListView
mCursorAdapter = new SimpleCursorAdapter(getActivity().getBaseContext(),
android.R.layout.simple_list_item_1,
null,
new String[] { SearchManager.SUGGEST_COLUMN_TEXT_1},
new int[] { android.R.id.text1}, 0);
// Setting the cursor adapter for the country listview
mLVCountries.setAdapter(mCursorAdapter);
// Getting the intent that invoked this activity
Intent intent = getActivity().getIntent();
// If this activity is invoked by selecting an item from Suggestion of Search dialog or
// from listview of SearchActivity
if(intent.getAction().equals(Intent.ACTION_VIEW)){
Intent countryIntent = new Intent(getActivity(), CountryActivity.class);
countryIntent.setData(intent.getData());
startActivity(countryIntent);
getActivity().finish();
}else if(intent.getAction().equals(Intent.ACTION_SEARCH)){ // If this activity is invoked, when user presses "Go" in the Keyboard of Search Dialog
String query = intent.getStringExtra(SearchManager.QUERY);
doSearch(query);
}
}
private void doSearch(String query){
Bundle data = new Bundle();
data.putString("query", query);
// Invoking onCreateLoader() in non-ui thread
getSupportLoaderManager().initLoader(1, data, this);
}
/** This method is invoked by initLoader() */
@Override
public Loader<Cursor> onCreateLoader(int arg0, Bundle data) {
Uri uri = CountryContentProvider.CONTENT_URI;
return new CursorLoader(getBaseContext(), uri, null, null , new String[]{data.getString("query")}, null);
}
/** This method is executed in ui thread, after onCreateLoader() */
@Override
public void onLoadFinished(Loader<Cursor> arg0, Cursor c) {
mCursorAdapter.swapCursor(c);
}
@Override
public void onLoaderReset(Loader<Cursor> arg0) {
}
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
// inflater.inflate.getMenuInflater();
inflater.inflate(R.menu.main_search_view, menu); //Do not ADD this otherwise the searcView will be duplicate
MenuItem menuItem = menu.findItem(R.id.search);
SearchView searchView = (SearchView) menuItem.getActionView();
searchView.setIconifiedByDefault(false);
searchView.setQueryHint("Type a something...");
int searchPlateId = searchView.getContext().getResources().getIdentifier("android:id/search_plate", null, null);
View searchPlate = searchView.findViewById(searchPlateId);
if (searchPlate!=null) {
searchPlate.setBackgroundColor(Color.DKGRAY);
int searchTextId = searchPlate.getContext().getResources().getIdentifier("android:id/search_src_text", null, null);
TextView searchText = (TextView) searchPlate.findViewById(searchTextId);
if (searchText!=null) {
searchText.setTextColor(Color.WHITE);
searchText.setHintTextColor(Color.WHITE);
}
}
// Associate searchable configuration with the SearchView
SearchManager searchManager =
(SearchManager) getActivity().getSystemService(Context.SEARCH_SERVICE);
searchView =
(SearchView) menu.findItem(R.id.search).getActionView();
searchView.setSearchableInfo(
searchManager.getSearchableInfo(getActivity().getComponentName()));
super.onCreateOptionsMenu(menu, inflater);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar actions click
switch (item.getItemId()) {
case R.id.action_settings:
return false;
case R.id.search:
return true;
default:
break;
}
return false;
}
}
