OpenTracks/src/main/java/de/dennisguse/opentracks/AggregatedStatsActivity.java

/*
 * Copyright 2012 Google 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 de.dennisguse.opentracks;

import android.os.Bundle;

import de.dennisguse.opentracks.content.ContentProviderUtils;
import de.dennisguse.opentracks.content.Track;
import de.dennisguse.opentracks.stats.TripStatistics;
import de.dennisguse.opentracks.util.StatsUtils;
import de.dennisguse.opentracks.R;

import java.util.List;

/**
 * An activity to view aggregated stats from all recorded tracks.
 *
 * @author Fergus Nelson
 */
public class AggregatedStatsActivity extends AbstractActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        StatsUtils.setTripStatisticsValues(this, this, null, getTripStatistics(), null);
        StatsUtils.setLocationValues(this, this, null, null, false);
    }

    @Override
    protected int getLayoutResId() {
        return R.layout.stats;
    }

    /**
     * Gets the aggregated trip statistics for all the recorded tracks or null if
     * there is no track.
     */
    private TripStatistics getTripStatistics() {
        List<Track> tracks = ContentProviderUtils.Factory.get(this).getAllTracks();
        TripStatistics tripStatistics = null;
        if (!tracks.isEmpty()) {
            tripStatistics = new TripStatistics(tracks.iterator().next().getTripStatistics());
            for (int i = 1; i < tracks.size(); i++) {
                tripStatistics.merge(tracks.get(i).getTripStatistics());
            }
        }
        return tripStatistics;
    }
}