CityAdapter.java

/*
 * Copyright 2014 Realm Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.realm.examples.realmgridview;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

import java.util.List;
import java.util.Locale;

// This adapter is strictly to interface with the GridView and doesn't
// particular show much interesting Realm functionality.

// Alternatively from this example,
// a developer could update the getView() to pull items from the Realm.

public class CityAdapter extends BaseAdapter {

    private LayoutInflater inflater;

    private List<City> cities = null;

    public CityAdapter(Context context) {
        inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    }

    public void setData(List<City> details) {
        this.cities = details;
    }

    @Override
    public int getCount() {
        if (cities == null) {
            return 0;
        }
        return cities.size();
    }

    @Override
    public Object getItem(int position) {
        if (cities == null || cities.get(position) == null) {
            return null;
        }
        return cities.get(position);
    }

    @Override
    public long getItemId(int i) {
        return i;
    }

    @Override
    public View getView(int position, View currentView, ViewGroup parent) {
        if (currentView == null) {
            currentView = inflater.inflate(R.layout.city_listitem, parent, false);
        }

        City city = cities.get(position);

        if (city != null) {
            ((TextView) currentView.findViewById(R.id.name)).setText(city.getName());
            ((TextView) currentView.findViewById(R.id.votes)).setText(String.format(Locale.US, "%d",city.getVotes()));
        }

        return currentView;
    }
}