Android Open Source - final_app Calendar Result Handler

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The source code is released under:

CC0 1.0 Universal Statement of Purpose The laws of most jurisdictions throughout the world automatically confer exclusive Copyright and Related Rights (defined below) upon the creator and subsequent...

Java Source Code

/*
 * Copyright (C) 2008 ZXing authors//from   w ww  . j a v a  2s.  c  o  m
 *
 * 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 com.google.zxing.client.android.result;

import java.text.DateFormat;
import java.util.Date;

import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.Intent;
import android.util.Log;

import com.google.zxing.client.android.R;
import com.google.zxing.client.result.CalendarParsedResult;
import com.google.zxing.client.result.ParsedResult;

/**
 * Handles calendar entries encoded in QR Codes.
 * 
 * @author dswitkin@google.com (Daniel Switkin)
 * @author Sean Owen
 */
public final class CalendarResultHandler extends ResultHandler {

  private static final String TAG = CalendarResultHandler.class.getSimpleName();

  private static final int[] buttons = { R.string.button_add_calendar };

  public CalendarResultHandler(Activity activity, ParsedResult result) {
    super(activity, result);
  }

  @Override
  public int getButtonCount() {
    return buttons.length;
  }

  @Override
  public int getButtonText(int index) {
    return buttons[index];
  }

  @Override
  public void handleButtonPress(int index) {
    if (index == 0) {
      CalendarParsedResult calendarResult = (CalendarParsedResult) getResult();

      String description = calendarResult.getDescription();
      String organizer = calendarResult.getOrganizer();
      if (organizer != null) { // No separate Intent key, put in description
        if (description == null) {
          description = organizer;
        } else {
          description = description + '\n' + organizer;
        }
      }

      addCalendarEvent(calendarResult.getSummary(), calendarResult.getStart(), calendarResult.isStartAllDay(), calendarResult.getEnd(),
          calendarResult.getLocation(), description, calendarResult.getAttendees());
    }
  }

  /**
   * Sends an intent to create a new calendar event by prepopulating the Add Event UI. Older versions of the system have a bug where the event title
   * will not be filled out.
   * 
   * @param summary
   *            A description of the event
   * @param start
   *            The start time
   * @param allDay
   *            if true, event is considered to be all day starting from start time
   * @param end
   *            The end time (optional)
   * @param location
   *            a text description of the event location
   * @param description
   *            a text description of the event itself
   * @param attendees
   *            attendees to invite
   */
  private void addCalendarEvent(String summary, Date start, boolean allDay, Date end, String location, String description, String[] attendees) {
    Intent intent = new Intent(Intent.ACTION_INSERT);
    intent.setType("vnd.android.cursor.item/event");
    long startMilliseconds = start.getTime();
    intent.putExtra("beginTime", startMilliseconds);
    if (allDay) {
      intent.putExtra("allDay", true);
    }
    long endMilliseconds;
    if (end == null) {
      if (allDay) {
        // + 1 day
        endMilliseconds = startMilliseconds + 24 * 60 * 60 * 1000;
      } else {
        endMilliseconds = startMilliseconds;
      }
    } else {
      endMilliseconds = end.getTime();
    }
    intent.putExtra("endTime", endMilliseconds);
    intent.putExtra("title", summary);
    intent.putExtra("eventLocation", location);
    intent.putExtra("description", description);
    if (attendees != null) {
      intent.putExtra(Intent.EXTRA_EMAIL, attendees);
      // Documentation says this is either a String[] or comma-separated String, which is right?
    }

    try {
      // Do this manually at first
      rawLaunchIntent(intent);
    } catch (ActivityNotFoundException anfe) {
      Log.w(TAG, "No calendar app available that responds to " + Intent.ACTION_INSERT);
      // For calendar apps that don't like "INSERT":
      intent.setAction(Intent.ACTION_EDIT);
      launchIntent(intent); // Fail here for real if nothing can handle it
    }
  }

  @Override
  public CharSequence getDisplayContents() {

    CalendarParsedResult calResult = (CalendarParsedResult) getResult();
    StringBuilder result = new StringBuilder(100);

    ParsedResult.maybeAppend(calResult.getSummary(), result);

    Date start = calResult.getStart();
    ParsedResult.maybeAppend(format(calResult.isStartAllDay(), start), result);

    Date end = calResult.getEnd();
    if (end != null) {
      if (calResult.isEndAllDay() && !start.equals(end)) {
        // Show only year/month/day
        // if it's all-day and this is the end date, it's exclusive, so show the user
        // that it ends on the day before to make more intuitive sense.
        // But don't do it if the event already (incorrectly?) specifies the same start/end
        end = new Date(end.getTime() - 24 * 60 * 60 * 1000);
      }
      ParsedResult.maybeAppend(format(calResult.isEndAllDay(), end), result);
    }

    ParsedResult.maybeAppend(calResult.getLocation(), result);
    ParsedResult.maybeAppend(calResult.getOrganizer(), result);
    ParsedResult.maybeAppend(calResult.getAttendees(), result);
    ParsedResult.maybeAppend(calResult.getDescription(), result);
    return result.toString();
  }

  private static String format(boolean allDay, Date date) {
    if (date == null) {
      return null;
    }
    DateFormat format = allDay ? DateFormat.getDateInstance(DateFormat.MEDIUM) : DateFormat.getDateTimeInstance(DateFormat.MEDIUM,
        DateFormat.MEDIUM);
    return format.format(date);
  }

  @Override
  public int getDisplayTitle() {
    return R.string.result_calendar;
  }
}

Java Source Code List

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