Example usage for android.widget Filter Filter

Introduction

In this page you can find the example usage for android.widget Filter Filter.

Prototype

public Filter() 

Source Link

Document

Creates a new asynchronous filter.

Usage

From source file:se.chalmers.watchme.activity.AutoCompleteAdapter.java

@Override
public Filter getFilter() {

    return new Filter() {

        /*/* w  w  w .j  a  v a  2  s.  c om*/
         * Override this method in order to populate the auto complete field
         * with the actual movie name when selecting a suggestion from the list,
         * instead of the default toString implementation.
         * 
         * @see android.widget.Filter#convertResultToString(java.lang.Object)
         */
        @Override
        public CharSequence convertResultToString(Object result) {
            if (result instanceof JSONObject) {
                return ((JSONObject) result).optString(Movie.JSON_KEY_NAME);
            }

            return super.convertResultToString(result);
        }

        /*
         * The actual filtering, where the call to the API is made. The method
         * is called in a worker thread apart from the UI thread, so we're okay.
         * 
         * @see android.widget.Filter#performFiltering(java.lang.CharSequence)
         */
        @Override
        protected FilterResults performFiltering(CharSequence constraint) {

            FilterResults results = new FilterResults();
            if (constraint != null) {
                JSONArray json = source.getMoviesByTitle(constraint.toString());

                results.values = json;
                results.count = json.length();
            }

            return results;
        }

        /*
         * Update the list.
         * 
         * @see android.widget.Filter#publishResults(java.lang.CharSequence, android.widget.Filter.FilterResults)
         */
        @Override
        protected void publishResults(CharSequence constraint, FilterResults results) {
            if (results != null && results.count > 0) {
                movies = (JSONArray) results.values;
                notifyDataSetChanged();
            } else {
                notifyDataSetInvalidated();
            }
        }

    };
}

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From source file:com.capstone.transit.trans_it.PlacesAutoCompleteAdapter.java

@Override
public Filter getFilter() {
    Filter filter = new Filter() {
        @Override//from w  ww.  j a  va 2  s  .c om
        protected FilterResults performFiltering(CharSequence constraint) {
            FilterResults filterResults = new FilterResults();
            if (constraint != null) {
                // Retrieve the autocomplete results.
                resultList = autocomplete(constraint.toString());

                // Assign the data to the FilterResults
                filterResults.values = resultList;
                filterResults.count = resultList.size();
            }
            return filterResults;
        }

        @Override
        protected void publishResults(CharSequence constraint, FilterResults results) {
            if (results != null && results.count > 0) {
                notifyDataSetChanged();
            } else {
                notifyDataSetInvalidated();
            }
        }
    };
    return filter;
}

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From source file:ch.ethz.tik.hrouting.providers.PlacesAutoCompleteAdapter.java

@Override
public Filter getFilter() {
    return new Filter() {
        @Override//w  w w . j  av  a2s .c  o  m
        protected FilterResults performFiltering(CharSequence constraint) {
            FilterResults filterResults = new FilterResults();
            if (constraint != null) {
                // Retrieve the auto-complete results.
                resultList = autocomplete(constraint.toString());

                // Assign the data to the FilterResults
                if (resultList != null) {
                    filterResults.values = resultList;
                    filterResults.count = resultList.size();
                }
            }
            return filterResults;
        }

        @Override
        protected void publishResults(CharSequence constraint, FilterResults results) {
            if (results != null && results.count > 0) {
                notifyDataSetChanged();
            } else {
                notifyDataSetInvalidated();
            }
        }
    };
}

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From source file:tw.geodoer.mGeoInfo.controller.PlaceAutocompleteAdapter.java

/**
 * Returns the filter for the current set of autocomplete results.
 *///  w ww .java  2s.  co m
@Override
public Filter getFilter() {
    Filter filter = new Filter() {
        @Override
        protected FilterResults performFiltering(CharSequence constraint) {
            FilterResults results = new FilterResults();
            // Skip the autocomplete query if no constraints are given.
            if (constraint != null) {
                // Query the autocomplete API for the (constraint) search string.
                mResultList = getAutocomplete(constraint);
                if (mResultList != null) {
                    // The API successfully returned results.
                    results.values = mResultList;
                    results.count = mResultList.size();
                }
            }
            return results;
        }

        @Override
        protected void publishResults(CharSequence constraint, FilterResults results) {
            if (results != null && results.count > 0) {
                // The API returned at least one result, update the data.
                notifyDataSetChanged();
            } else {
                // The API did not return any results, invalidate the data set.
                notifyDataSetInvalidated();
            }
        }
    };
    return filter;
}

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From source file:com.justplay1.shoppist.features.search.SearchAdapter.java

@Override
public Filter getFilter() {
    return new Filter() {
        @Override/*from w ww .  j a v a  2s  .  c o m*/
        protected FilterResults performFiltering(CharSequence constraint) {
            FilterResults results = new FilterResults();
            if (constraint == null || constraint.length() == 0) {
                results.values = data.values();
                results.count = data.size();
            } else {
                String prefixString = constraint.toString().toLowerCase();
                final List<ProductViewModel> newValues = new ArrayList<>();

                if (!data.containsKey(prefixString)) {
                    ProductViewModel product = new ProductViewModel();
                    product.setId(SearchView.JUST_NAME);
                    product.setName(constraint.toString());
                    UnitViewModel unit = new UnitViewModel();
                    unit.setId(UnitViewModel.NO_UNIT_ID);
                    product.setUnit(unit);
                    CategoryViewModel category = new CategoryViewModel();
                    category.setId(CategoryViewModel.NO_CATEGORY_ID);
                    product.setCategory(category);
                    newValues.add(product);
                }

                for (final ProductViewModel value : data.values()) {
                    final String valueText = value.getName().toLowerCase();

                    if (valueText.startsWith(prefixString)) {
                        newValues.add(value);
                    } else {
                        final String[] words = valueText.split(" ");

                        // Start at index 0, in case valueText starts with space(s)
                        for (String word : words) {
                            if (word.startsWith(prefixString)) {
                                int start = valueText.length() - word.length();
                                newValues.add(value);
                                break;
                            }
                        }
                    }
                }
                results.values = newValues;
                results.count = newValues.size();
            }
            return results;
        }

        @Override
        protected void publishResults(CharSequence constraint, Filter.FilterResults results) {
            if (constraint == null)
                return;
            if (results.values == null)
                return;

            itemsToDisplay.clear();
            itemsToDisplay.addAll((Collection<ProductViewModel>) results.values);
            if (results.count > 0) {
                notifyDataSetChanged();
            } else {
                notifyItemRangeRemoved(0, getItemCount());
            }
        }
    };
}

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From source file:com.ccjeng.weather.view.adapter.PlaceAutocompleteAdapter.java

/**
 * Returns the filter for the current set of autocomplete results.
 *//*from   ww  w  . j  a  v  a 2  s  . c om*/
@Override
public Filter getFilter() {
    return new Filter() {
        @Override
        protected FilterResults performFiltering(CharSequence constraint) {
            FilterResults results = new FilterResults();

            // We need a separate list to store the results, since
            // this is run asynchronously.
            ArrayList<AutocompletePrediction> filterData = new ArrayList<>();

            // Skip the autocomplete query if no constraints are given.
            if (constraint != null) {
                // Query the autocomplete API for the (constraint) search string.
                filterData = getAutocomplete(constraint);
            }

            results.values = filterData;
            if (filterData != null) {
                results.count = filterData.size();
            } else {
                results.count = 0;
            }

            return results;
        }

        @Override
        protected void publishResults(CharSequence constraint, FilterResults results) {

            if (results != null && results.count > 0) {
                // The API returned at least one result, update the data.
                mResultList = (ArrayList<AutocompletePrediction>) results.values;
                notifyDataSetChanged();
            } else {
                // The API did not return any results, invalidate the data set.
                notifyDataSetInvalidated();
            }
        }

        @Override
        public CharSequence convertResultToString(Object resultValue) {
            // Override this method to display a readable result in the AutocompleteTextView
            // when clicked.
            if (resultValue instanceof AutocompletePrediction) {
                return ((AutocompletePrediction) resultValue).getFullText(null);
            } else {
                return super.convertResultToString(resultValue);
            }
        }
    };
}

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From source file:com.tmendes.birthdaydroid.BirthDayArrayAdapter.java

@Override
public Filter getFilter() {
    return new Filter() {

        @SuppressWarnings("unchecked")
        @Override/*from   www.j a v  a 2s  .c o m*/
        protected void publishResults(CharSequence constraint, Filter.FilterResults results) {
            contactsBirthDays = (ArrayList<ContactData>) results.values;
            notifyDataSetChanged();
        }

        @Override
        protected FilterResults performFiltering(CharSequence constraint) {
            FilterResults results = new FilterResults();
            ArrayList<ContactData> FilteredArrList = new ArrayList<>();

            if (constraint == null || constraint.length() == 0) {
                results.count = orglBDList.size();
                results.values = orglBDList;
            } else {
                constraint = constraint.toString().toLowerCase();
                for (int i = 0; i < orglBDList.size(); i++) {
                    String data = orglBDList.get(i).getName();
                    if (data.toLowerCase().startsWith(constraint.toString())) {
                        ContactData contact = new ContactData(ctx, orglBDList.get(i).getKey(),
                                orglBDList.get(i).getName(), orglBDList.get(i).getDate(),
                                orglBDList.get(i).getPhotoURI());
                        FilteredArrList.add(contact);
                    }
                }
                results.count = FilteredArrList.size();
                results.values = FilteredArrList;
            }

            return results;
        }
    };
}

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From source file:com.moto.miletus.application.DeviceListAdapter.java

@Override
public Filter getFilter() {
    return new Filter() {
        @Override/*from ww w  . j a v  a 2 s  .  c o  m*/
        protected FilterResults performFiltering(final CharSequence constraint) {
            final FilterResults results = new FilterResults();
            final List<DeviceWrapper> dataSetFilter = new ArrayList<>();

            if (constraint.length() == 0) {
                dataSetFilter.addAll(getDataSetOriginal());
            } else {
                for (final DeviceWrapper device : getDataSetOriginal()) {
                    if (StringUtils.containsIgnoreCase(device.getDevice().getName(), constraint.toString())) {
                        dataSetFilter.add(device);
                    }
                }
            }

            results.values = dataSetFilter;
            results.count = dataSetFilter.size();
            return results;
        }

        @Override
        protected void publishResults(final CharSequence constraint, final FilterResults results) {
            if (results.values instanceof List) {
                getDataSetFilter().clear();
                setDataSetFilter((List<DeviceWrapper>) results.values);
                sort();
            }
        }
    };
}

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From source file:eu.faircode.netguard.AdapterRule.java

@Override
public Filter getFilter() {
    return new Filter() {
        @Override/*from   w  w w.  j  av a 2 s.  co m*/
        protected FilterResults performFiltering(CharSequence query) {
            List<Rule> listResult = new ArrayList<>();
            if (query == null)
                listResult.addAll(listAll);
            else {
                query = query.toString().toLowerCase().trim();
                int uid;
                try {
                    uid = Integer.parseInt(query.toString());
                } catch (NumberFormatException ignore) {
                    uid = -1;
                }
                for (Rule rule : listAll)
                    if (rule.info.applicationInfo.uid == uid
                            || rule.info.packageName.toLowerCase().contains(query)
                            || (rule.name != null && rule.name.toLowerCase().contains(query)))
                        listResult.add(rule);
            }

            FilterResults result = new FilterResults();
            result.values = listResult;
            result.count = listResult.size();
            return result;
        }

        @Override
        protected void publishResults(CharSequence query, FilterResults result) {
            listFiltered.clear();
            if (result == null)
                listFiltered.addAll(listAll);
            else {
                listFiltered.addAll((List<Rule>) result.values);
                if (listFiltered.size() == 1)
                    listFiltered.get(0).expanded = true;
            }
            notifyDataSetChanged();
        }
    };
}

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