it.gulch.linuxday.android.adapters.EventsAdapter.java Source code

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Here is the source code for it.gulch.linuxday.android.adapters.EventsAdapter.java

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/*
 * Copyright 2014 Christophe Beyls
 *
 * 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 it.gulch.linuxday.android.adapters;

import android.content.Context;
import android.text.Spannable;
import android.text.SpannableString;
import android.text.style.AbsoluteSizeSpan;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;

import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.lang3.StringUtils;

import java.text.DateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.List;

import it.gulch.linuxday.android.R;
import it.gulch.linuxday.android.model.db.Event;
import it.gulch.linuxday.android.utils.DateUtils;

public class EventsAdapter extends BaseAdapter {
    private static final DateFormat TIME_DATE_FORMAT = DateUtils.getTimeDateFormat();

    private final LayoutInflater inflater;

    private final int titleTextSize;

    private final boolean showDay;

    private List<Event> events;

    public EventsAdapter(Context context, List<Event> events) {
        this(context, events, true);
    }

    public EventsAdapter(Context context, List<Event> events, boolean showDay) {
        super();
        inflater = LayoutInflater.from(context);
        titleTextSize = context.getResources().getDimensionPixelSize(R.dimen.list_item_title_text_size);
        this.showDay = showDay;
        this.events = events;
    }

    @Override
    public Event getItem(int position) {
        if (events == null || events.size() < 1 || position > events.size()) {
            return null;
        }

        return events.get(position);
    }

    @Override
    public long getItemId(int i) {
        if (events == null || events.size() < 1 || i > events.size()) {
            return 0;
        }

        return events.get(i).getId();
    }

    @Override
    public int getCount() {
        if (events == null) {
            return 0;
        }

        return events.size();
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder viewHolder;
        if (convertView != null) {
            viewHolder = (ViewHolder) convertView.getTag();
        } else {
            convertView = inflater.inflate(R.layout.item_event, parent, false);

            viewHolder = new ViewHolder();
            viewHolder.title = (TextView) convertView.findViewById(R.id.title);
            viewHolder.titleSizeSpan = new AbsoluteSizeSpan(titleTextSize);
            viewHolder.trackName = (TextView) convertView.findViewById(R.id.track_name);
            viewHolder.details = (TextView) convertView.findViewById(R.id.details);
            convertView.setTag(viewHolder);
        }

        Event event = getItem(position);
        bindView(viewHolder, event);

        return convertView;
    }

    private void bindView(ViewHolder viewHolder, Event event) {
        viewHolder.event = event;

        String eventTitle = event.getTitle();
        SpannableString spannableString;
        if (CollectionUtils.isEmpty(event.getPeople())) {
            spannableString = new SpannableString(eventTitle);
        } else {
            String personsSummary = StringUtils.join(event.getPeople(), ", ");
            spannableString = new SpannableString(String.format("%1$s\n%2$s", eventTitle, personsSummary));
        }

        spannableString.setSpan(viewHolder.titleSizeSpan, 0, eventTitle.length(),
                Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
        viewHolder.title.setText(spannableString);
        int bookmarkDrawable = event.isBookmarked() ? R.drawable.ic_small_starred : 0;
        viewHolder.title.setCompoundDrawablesWithIntrinsicBounds(0, 0, bookmarkDrawable, 0);

        viewHolder.trackName.setText(event.getTrack().getTitle());

        Date startTime = event.getStartDate();
        Date endTime = event.getEndDate();

        String startTimeString = (startTime != null) ? TIME_DATE_FORMAT.format(startTime) : "?";
        String endTimeString = (endTime != null) ? TIME_DATE_FORMAT.format(endTime) : "?";
        String details;

        String roomName = event.getTrack().getRoom().getName();
        if (showDay) {
            details = String.format("%1$s, %2$s  %3$s  |  %4$s", event.getTrack().getDay().getName(),
                    startTimeString, endTimeString, roomName);
        } else {
            details = String.format("%1$s  %2$s  |  %3$s", startTimeString, endTimeString, roomName);
        }
        viewHolder.details.setText(details);
    }

    private static class ViewHolder {
        TextView title;

        AbsoluteSizeSpan titleSizeSpan;

        TextView trackName;

        TextView details;

        Event event;
    }
}