android - ¿Cómo filtrar los datos en el adaptador de dominio?

realm

Question

Estoy enfrentando el problema al filtrar los datos en el adaptador de dominio. Estoy creando la vista de búsqueda para buscar datos filtrando los datos en el adaptador de dominio.

Mi código para la implementación de la vista de búsqueda es

  @Override
    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
        inflater.inflate(R.menu.main_menu, menu);

        final MenuItem item = menu.findItem(R.id.action_search);
        final SearchView searchView = (SearchView) MenuItemCompat.getActionView(item);
        Log.e("Filter ","Filtering");
        searchView.setOnQueryTextListener(this);

        MenuItemCompat.setOnActionExpandListener(item,
                new MenuItemCompat.OnActionExpandListener() {
                    @Override
                    public boolean onMenuItemActionCollapse(MenuItem item) {
// Do something when collapsed
                        adapter.setFilter(realmPhonecallList);

                        Log.e("Filter 1","Filtering");
                        return true; // Return true to collapse action view
                    }

                    @Override
                    public boolean onMenuItemActionExpand(MenuItem item) {
// Do something when expanded
                        return true; // Return true to expand action view
                    }
                });
    }



    @Override
    public boolean onQueryTextSubmit(String newText) {

        return true;
    }

    @Override
    public boolean onQueryTextChange(String newText) {
        final List<RealmPhoneCallLogs> filteredModelList = filter(realmPhonecallList, newText);
        Log.e("Filter 2","Filtering" + newText);
        adapter.setFilter(filteredModelList);
        Log.e("Filter 3","Filtering" + filteredModelList);
        return true;
    }

    private List<RealmPhoneCallLogs> filter(List<RealmPhoneCallLogs> models, String query) {
        query = query.toLowerCase();

        final List<RealmPhoneCallLogs> filteredModelList = new ArrayList<>();
        for (RealmPhoneCallLogs model : models) {
            final String text = model.getNumber().toLowerCase();
            if (text.contains(query)) {
                filteredModelList.add(model);
            }
        }
        Log.e("Filter 4","Filtering" + filteredModelList);
        return filteredModelList;
    }

La implementación de mi adaptador de reino es

private class MyNamesAdapter extends RealmBaseAdapter<RealmPhoneCallLogs> {

    List<RealmPhoneCallLogs> filter;

    public MyNamesAdapter(OrderedRealmCollection<RealmPhoneCallLogs> data) {
        super(data);
        this.filter = data;
    }

    public class ViewHolder {
        TextView number;
        TextView callType;
        TextView startTime;
        TextView contactName;
        TextView callDuration;
        TextView fileSize;
        ImageView contactPhoto;
        ImageView callSymbol;
    }


    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        final RealmPhoneCallLogs realmPhoneCallLogs = getItem(position);
        ViewHolder viewHolder;
        if (convertView == null) {
            viewHolder = new ViewHolder();
            LayoutInflater inflater = LayoutInflater.from(getContext());
            convertView = inflater.inflate(R.layout.calllog_layout, parent, false);
            viewHolder.number = (TextView) convertView.findViewById(R.id.missedNumber);
            viewHolder.startTime = (TextView) convertView.findViewById(R.id.missedStartTime);
            viewHolder.contactName = (TextView) convertView.findViewById(R.id.missedContactName);
            viewHolder.callDuration = (TextView) convertView.findViewById(R.id.missedCallDuration);
            viewHolder.fileSize = (TextView) convertView.findViewById(R.id.missedFileSize);
            viewHolder.contactPhoto = (ImageView) convertView.findViewById(R.id.missedImage);
            viewHolder.callSymbol = (ImageView) convertView.findViewById(R.id.callSymbol);
            convertView.setTag(viewHolder);
        } else {
            viewHolder = (ViewHolder) convertView.getTag();
        }

        if (adapterData != null) {
            viewHolder.number.setText(realmPhoneCallLogs.getNumber());
            viewHolder.contactName.setText(getContactName(realmPhoneCallLogs.getNumber()));
            viewHolder.callDuration.setText(getTime(realmPhoneCallLogs.getCallDuration()));
            viewHolder.startTime.setText(realmPhoneCallLogs.getStartTime());
            viewHolder.contactPhoto.setImageBitmap(getContactsImage(realmPhoneCallLogs.getNumber()));
            String path = new String(Environment.getExternalStorageDirectory() + "/NewCallLogs/" + realmPhoneCallLogs.getCallRecords());
            File file = new File(path);
            String size;

            long filesize = file.length();
            long fileSizeInKB = filesize / 1024;
            long fileSizeInMB = fileSizeInKB / 1024;
            if(fileSizeInKB >=1024){
                 size= fileSizeInMB + " Mb";
            }else {
                 size = fileSizeInKB + " Kb";
            }
            if(!size.isEmpty()){
                viewHolder.fileSize.setText(size);
            }else{
                viewHolder.fileSize.setText(0);
            }



            if (realmPhoneCallLogs.getCallType().equals("I")) {
                viewHolder.callSymbol.setImageResource(R.mipmap.call_received);
            } else if (realmPhoneCallLogs.getCallType().equals("O")) {
                viewHolder.callSymbol.setImageResource(R.mipmap.call_made);
            } else if (realmPhoneCallLogs.getCallStatus().equals("UA")) {
                viewHolder.callSymbol.setImageResource(R.mipmap.call_missed);
            }

            return convertView;
        }
        return convertView;
    }

    public void setFilter( List<RealmPhoneCallLogs> filtedData) {
        filter = new ArrayList<>();
        filter.addAll(filtedData);
        notifyDataSetChanged();
    }
}

Por favor, ayúdame a filtrar los datos en el reino.

Answer 1

Aquí hay un ejemplo de un RecyclerView filtrable con Realm:
cómo implementar filtrable en RealmRecyclerViewAdapter

Aquí está el hilo del problema:
https://github.com/realm/realm-java/issues/646

Answer 2

public void setFilter( List<RealmPhoneCallLogs> filtedData) {
    filter = new ArrayList<>(); // <-- WRONG
    filter.addAll(filtedData); // <-- WRONG

private List<RealmPhoneCallLogs> filter(List<RealmPhoneCallLogs> models, String query) {
    query = query.toLowerCase();

    final List<RealmPhoneCallLogs> filteredModelList = new ArrayList<>(); // <-- WRONG
    for (RealmPhoneCallLogs model : models) { // <-- WRONG
        final String text = model.getNumber().toLowerCase();
        if (text.contains(query)) { // <-- WRONG: should be Realm query

En cambio, debes hacer

// from https://.com/a/33818311/2413303
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
        @Override
        public boolean onQueryTextSubmit(String query) {
            adapter.getFilter().filter(query);
            return false;
        }

        @Override
        public boolean onQueryTextChange(String newText) {
            if (searchView.getQuery().length() == 0) {
                 adapter.getFilter().filter("");
            }
            return false;
        }
});

Entonces, al igual que en la respuesta vinculada

private class MyNamesAdapter
        extends RealmBaseAdapter<RealmPhoneCallLogs> 
        implements Filterable {
    public MyNamesAdapter(OrderedRealmCollection<RealmPhoneCallLogs> data) {
        super(data);
    }

    public class ViewHolder {
        TextView number;
        TextView callType;
        TextView startTime;
        TextView contactName;
        TextView callDuration;
        TextView fileSize;
        ImageView contactPhoto;
        ImageView callSymbol;
    }


    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        final RealmPhoneCallLogs realmPhoneCallLogs = getItem(position);
        ViewHolder viewHolder;
        if(convertView == null) {
            viewHolder = new ViewHolder();
            LayoutInflater inflater = LayoutInflater.from(getContext());
            convertView = inflater.inflate(R.layout.calllog_layout, parent, false);
            viewHolder.number = (TextView) convertView.findViewById(R.id.missedNumber);
            viewHolder.startTime = (TextView) convertView.findViewById(R.id.missedStartTime);
            viewHolder.contactName = (TextView) convertView.findViewById(R.id.missedContactName);
            viewHolder.callDuration = (TextView) convertView.findViewById(R.id.missedCallDuration);
            viewHolder.fileSize = (TextView) convertView.findViewById(R.id.missedFileSize);
            viewHolder.contactPhoto = (ImageView) convertView.findViewById(R.id.missedImage);
            viewHolder.callSymbol = (ImageView) convertView.findViewById(R.id.callSymbol);
            convertView.setTag(viewHolder);
        } else {
            viewHolder = (ViewHolder) convertView.getTag();
        }

        if(adapterData != null) {
            viewHolder.number.setText(realmPhoneCallLogs.getNumber());
            viewHolder.contactName.setText(getContactName(realmPhoneCallLogs.getNumber()));
            viewHolder.callDuration.setText(getTime(realmPhoneCallLogs.getCallDuration()));
            viewHolder.startTime.setText(realmPhoneCallLogs.getStartTime());
            viewHolder.contactPhoto.setImageBitmap(getContactsImage(realmPhoneCallLogs.getNumber()));
            String path = new String(Environment.getExternalStorageDirectory() + "/NewCallLogs/" + realmPhoneCallLogs
                    .getCallRecords());
            File file = new File(path);
            String size;

            long filesize = file.length();
            long fileSizeInKB = filesize / 1024;
            long fileSizeInMB = fileSizeInKB / 1024;
            if(fileSizeInKB >= 1024) {
                size = fileSizeInMB + " Mb";
            } else {
                size = fileSizeInKB + " Kb";
            }
            if(!size.isEmpty()) {
                viewHolder.fileSize.setText(size);
            } else {
                viewHolder.fileSize.setText(0);
            }

            if("I".equals(realmPhoneCallLogs.getCallType())) {
                viewHolder.callSymbol.setImageResource(R.mipmap.call_received);
            } else if("O".equals(realmPhoneCallLogs.getCallType())) {
                viewHolder.callSymbol.setImageResource(R.mipmap.call_made);
            } else if("UA".equals(realmPhoneCallLogs.getCallStatus())) {
                viewHolder.callSymbol.setImageResource(R.mipmap.call_missed);
            }

            return convertView;
        }
        return convertView;
    }

// filtering
    public void filterResults(String text) {
        text = text == null ? null : text.toLowerCase().trim();
        if(text == null || "".equals(text)) {
            updateData(realm.where(RealmPhoneCallLogs.class).findAllSorted("id");
        } else {
            updateData(realm.where(RealmPhoneCallLogs.class)
                                .contains("number", text, Case.INSENSITIVE)
                                .findAllSorted("id")); 
        }
    }

    public Filter getFilter() {
        return new MyNamesFilter(this);
    }

    private class MyNamesFilter
            extends Filter {
        private final MyNamesAdapter adapter;

        private MyNamesFilter(MyNamesAdapter adapter) {
            super();
            this.adapter = adapter;
        }

        @Override
        protected FilterResults performFiltering(CharSequence constraint) {
            return new FilterResults();
        }

        @Override
        protected void publishResults(CharSequence constraint, FilterResults results) {
            adapter.filterResults(constraint.toString());
        }
    }
}

Para filtrar Realm, también puede consultar la documentación oficial sobre consultas .