I have impelmented SyncAdapter
that calls webservice and insert/update database. I would like to show some of this data in ListView
so i implemented ListFragment
in witch the data is displayed via CursorAdapter
. And everything works ok, except when I get new data from web and insert it into database, the CursorAdapter
is not updated and new data is not shown in ListView
In my ContentProvider
, after every insert I call context.getContentResolver().notifyChange(uri, null);
This is ListFragment
part for implementing adapter
mAdapter = new ObavijestiAdapter(getActivity(), null, 0);
setListAdapter(mAdapter);
and this is my custom adapter
public class ObavijestiAdapter extends CursorAdapter {
private Cursor mCursor;
private Context mContext;
private final LayoutInflater mInflater;
static class ViewHolder {
public TextView hTextNaslov;
public TextView hTextOpis;
public ImageView hImage;
}
public ObavijestiAdapter(Context context, Cursor c, int flags) {
super(context, c, flags);
mInflater = LayoutInflater.from(context);
mContext = context;
}
@Override
public void bindView(View view, Context context, Cursor cursor) {
final ViewHolder holder = (ViewHolder)view.getTag();
//TODO: REMOVE AFTER IMPLEMENTING REAL IMAGE
int w = 24, h = 24;
Bitmap.Config conf = Bitmap.Config.ARGB_8888; // see other conf types
Bitmap bmp = Bitmap.createBitmap(w, h, conf); // this creates a MUTABLE bitmap
//END REMOVE
holder.hImage.setImageBitmap(bmp);
holder.hTextNaslov.setText(cursor.getString(cursor.getColumnIndex(DataContract.Obavijesti.OBAVIJESTI_NASLOV)));
holder.hTextOpis.setText(cursor.getString(cursor.getColumnIndex(DataContract.Obavijesti.OBAVIJESTI_OPIS)));
}
@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
View view=mInflater.inflate(R.layout.fragment_obavijesti_row,parent,false);
final ViewHolder holder = new ViewHolder();
holder.hTextOpis = (TextView) view.findViewById(R.id.obOpis);
holder.hTextNaslov = (TextView) view.findViewById(R.id.obNaslov);
holder.hImage = (ImageView) view.findViewById(R.id.oblist_image);
view.setTag(holder);
return view;
}
Can anybody help me?
I finally got this to work. So for anybody trying to do similar thing, you must include
cursor.setNotificationUri(getContext().getContentResolver(), uri);
after your.query
in theContentProvider
. And that is it...But if you are like me and are receiving data from a web service, remember NOT to put
.notifyDataSetChanged()
on ContentProvider.update/.insert/.delete
but on a adapter that is calling this methods inSyncAdapter
. In my exampleI hope, for somebody, this will be helpful
Try invalidating the view you're using after updating the information.