Ich verwende Realm in meiner mobilen Anwendung, um Werbebuchungen für meine Listenansicht zu speichern. Ich erweitere den RealmBaseAdapter, der gut funktioniert. Problem ist, dass, wenn ich eine Abfrage an die Datenbank mache, um meine Artikel zu filtern, mein Adapter die geänderte Liste nicht aufnimmt und den out of bound index
Fehler verursacht.Listenadapter übernimmt keine Änderungen nach Realm-Abfrage
Dies ist, wo ich meinen Adapter mit den Anfangswerten gesetzt,
results = realm.where(BillingLineItem.class).findAll();
adapter = new BillingListAdapter(getActivity(), results);
Und das ist der Teil, den ich die Filterung mache basierend auf der Spezifikation Nummer,
results = realm.where(BillingLineItem.class)
.equalTo("SpecNumber", spec)
.findAll();
adapter.notifyDataSetChanged();
Und wie Ich sagte vorher Nach dieser Abfrage Ergebnisse werden aktualisiert, aber Adapter nimmt die Änderungen nicht auf.
EDIT: Mein Adapter für die Listenansicht
public class BillingListAdapter extends RealmBaseAdapter<BillingLineItem> {
private LayoutInflater inflater = null;
private HashMap<Integer, Boolean> mSelection = new HashMap<Integer, Boolean>();
private boolean isActionMode;
public BillingListAdapter(Context mContext, RealmResults<BillingLineItem> lineItems) {
super(mContext,lineItems);
inflater = (LayoutInflater) mContext.
getSystemService(Context.LAYOUT_INFLATER_SERVICE);
this.isActionMode = false;
}
// I commented out this part because RealmBaseAdapter automaticly implements this methods in the super class
/*@Override
public int getCount() {
return lineItems.size();
}
@Override
public Object getItem(int position) {
return lineItems.get(position);
}
@Override
public long getItemId(int position) {
return position;
}*/
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View vi = convertView;
ViewHolder holder;
if (convertView == null) {
/****** Inflate billing_foreground_item.xml file for each row (Defined below) *******/
vi = inflater.inflate(R.layout.billing_foreground_item, null);
/****** View Holder Object to contain billing_foreground_item.xml file elements ******/
holder = new ViewHolder();
holder.SubOper = (TextView) vi.findViewById(R.id.tvSubOper);
holder.Spec = (TextView) vi.findViewById(R.id.tvSpec);
holder.Address = (TextView) vi.findViewById(R.id.tvAddress);
holder.SKU = (TextView) vi.findViewById(R.id.tvSku);
holder.SKUDesc = (TextView) vi.findViewById(R.id.tvSkuDesc);
holder.Quantity = (TextView) vi.findViewById(R.id.tvQuantity);
holder.Unit = (TextView) vi.findViewById(R.id.tvUnit);
holder.BilledQty = (TextView) vi.findViewById(R.id.tvBBilledQty);
holder.RemainingQty = (TextView) vi.findViewById(R.id.tvRemainingQty);
holder.ivLineIcon = (ImageView) vi.findViewById(R.id.ivLineIcon);
holder.rlItem = (RelativeLayout) vi.findViewById(R.id.rlItem);
holder.ErrorMessage = (TextView) vi.findViewById(R.id.txtErrorDisplay);
/************ Set holder with LayoutInflater ************/
vi.setTag(holder);
} else {
holder = (ViewHolder) vi.getTag();
}
/************ Set Model values in Holder elements ***********/
if (adapterData.get(position).getFinalFlag()) {
holder.ivLineIcon.setImageResource(R.drawable.finalflagblue);
holder.rlItem.setBackgroundColor(Color.rgb(255, 255, 255));
if (adapterData.get(position).getCompleted()) {
holder.rlItem.setBackgroundColor(Color.rgb(223, 235, 245));
}
if (adapterData.get(position).getErrorFlag()){
holder.rlItem.setBackgroundColor(Color.rgb(231, 25, 57));
holder.ErrorMessage.setVisibility(View.VISIBLE);
holder.ErrorMessage.setText(adapterData.get(position).getErrorMessage());
}
} else if (adapterData.get(position).getDeleteFlag()) {
holder.ivLineIcon.setImageResource(R.drawable.trashiconred);
holder.rlItem.setBackgroundColor(Color.rgb(255, 255, 255));
if (adapterData.get(position).getErrorFlag()){
holder.rlItem.setBackgroundColor(Color.rgb(231, 25, 57));
holder.ErrorMessage.setVisibility(View.VISIBLE);
holder.ErrorMessage.setText(adapterData.get(position).getErrorMessage());
}
} else if (adapterData.get(position).getChanged()) {
holder.ivLineIcon.setImageResource(R.drawable.changedicongreen);
holder.rlItem.setBackgroundColor(Color.rgb(255, 255, 255));
if (adapterData.get(position).getErrorFlag()){
holder.rlItem.setBackgroundColor(Color.rgb(231, 25, 57));
holder.ErrorMessage.setVisibility(View.VISIBLE);
holder.ErrorMessage.setText(adapterData.get(position).getErrorMessage());
}
} else if (adapterData.get(position).getNewLine()) {
holder.ivLineIcon.setImageResource(R.drawable.newlineicon);
holder.rlItem.setBackgroundColor(Color.rgb(255, 255, 255));
if (adapterData.get(position).getErrorFlag()){
holder.rlItem.setBackgroundColor(Color.rgb(231, 25, 57));
holder.ErrorMessage.setVisibility(View.VISIBLE);
holder.ErrorMessage.setText(adapterData.get(position).getErrorMessage());
}
} else {
holder.ivLineIcon.setImageResource(R.drawable.linesiconblack);
holder.rlItem.setBackgroundColor(Color.rgb(255, 255, 255));
holder.ErrorMessage.setVisibility(View.GONE);
}
if (mSelection.get(position) != null) {
//Log.d(TAG, "Item Selected");
holder.rlItem.setBackgroundColor(Color.rgb(255, 255, 192));// this is a selected position so make it hilighted
}
holder.SubOper.setText(adapterData.get(position).getSubOper());
holder.Spec.setText(adapterData.get(position).getSpecNumber());
holder.Address.setText(adapterData.get(position).getAddress());
holder.SKU.setText(adapterData.get(position).getSKUNumber());
holder.SKUDesc.setText(adapterData.get(position).getSKUDesc());
holder.Quantity.setText(adapterData.get(position).getQuantity());
holder.Unit.setText(adapterData.get(position).getUnit());
holder.BilledQty.setText(adapterData.get(position).getBilledQty());
holder.RemainingQty.setText(adapterData.get(position).getRemainingQty());
return vi;
}
public void setNewSelection(int position, boolean value) {
mSelection.put(position, value);
notifyDataSetChanged();
}
public boolean isPositionChecked(int position) {
Boolean result = mSelection.get(position);
return result == null ? false : result;
}
public Set<Integer> getCurrentCheckedPosition() {
return mSelection.keySet();
}
public void removeSelection(int position) {
mSelection.remove(position);
notifyDataSetChanged();
}
public void clearSelection() {
mSelection = new HashMap<Integer, Boolean>();
notifyDataSetChanged();
}
public void setActionMode(boolean isActionMode)
{
this.isActionMode = isActionMode;
}
@Override
public boolean isEnabled(int position)
{
final BillingLineItem item = (BillingLineItem) getItem(position);
if (!item.getDeleteFlag().equals("true"))
{
//only enable items that are not inside the basket
return true;
}
//all other items are disabled during actionmode
return false;
}
public static class ViewHolder {
public TextView SubOper;
public TextView Spec;
public TextView Address;
public TextView SKU;
public TextView SKUDesc;
public TextView Quantity;
public TextView Unit;
public TextView BilledQty;
public TextView RemainingQty;
public ImageView ivLineIcon;
public RelativeLayout rlItem;
public TextView ErrorMessage;
}
}
was ist realm.where (BillingLineItem.class) .equalTo ("SpecNumber", spec) .findAll() size() ?!. ist es größer als Null ?! –
Ja, nach der Abfrage ist die Größe dieser Ergebnisse 8 –
Haben Sie den richtigen Wert in Ihrem getitemcount() in Ihrem Adapter? –