Main.java Source code

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//package com.java2s;
/*******************************************************************
 * Copyright (c) 2010 Rohit Kumbhar
 *
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following
 * conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *******************************************************************/

import android.app.Activity;

import android.database.Cursor;
import android.net.Uri;

public class Main {
    public static boolean haveCalendars(Activity ctx) {

        boolean exists = false;

        String[] projection = new String[] { "_id", "name" };
        Uri calendars = Uri.parse("content://calendar/calendars");

        // Calendar uri changes for 2.2
        Uri calendars_2_2 = Uri.parse("content://com.android.calendar/calendars");
        Cursor managedCursor = ctx.managedQuery(calendars, projection, null, null, null);

        if (managedCursor == null || managedCursor.getCount() == 0)
            managedCursor = ctx.managedQuery(calendars_2_2, projection, null, null, null);

        if (managedCursor != null && managedCursor.moveToFirst()) {
            String calName;
            String calId;
            int nameColumn = managedCursor.getColumnIndex("name");
            int idColumn = managedCursor.getColumnIndex("_id");
            do {
                calName = managedCursor.getString(nameColumn);
                calId = managedCursor.getString(idColumn);
                exists = true;
            } while (managedCursor.moveToNext());

            managedCursor.close();
        }

        return exists;
    }
}