Here you can find the source of formatDate(Calendar date, String format)
public static CharSequence formatDate(Calendar date, String format)
/******************************************************************************* * Mirakel is an Android App for managing your ToDo-Lists * /* w ww. j a va 2 s.com*/ * Copyright (c) 2013-2014 Anatolij Zelenin, Georg Semmler. * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. ******************************************************************************/ import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.Date; import java.util.GregorianCalendar; import java.util.Locale; import android.content.Context; import android.os.Build; import android.text.format.DateUtils; import android.text.format.Time; import de.azapps.mirakelandroid.R; public class Main{ public static final SimpleDateFormat dateFormat = new SimpleDateFormat( "yyyy-MM-dd", Locale.getDefault()); public static String formatDate(Calendar c) { return c == null ? null : dateFormat.format(c.getTime()); } public static CharSequence formatDate(Calendar date, String format) { if (date == null) return ""; return new SimpleDateFormat(format, Locale.getDefault()) .format(date.getTime()); } public static CharSequence formatDate(Context ctx, Calendar date) { if (date == null) return ""; if (MirakelPreferences.isDateFormatRelative()) { GregorianCalendar now = new GregorianCalendar(); now.setTime(new Date()); if (Build.VERSION.SDK_INT > Build.VERSION_CODES.JELLY_BEAN_MR1 || !(now.get(Calendar.YEAR) == date.get(Calendar.YEAR) && now.get(Calendar.DAY_OF_MONTH) == date .get(Calendar.DAY_OF_MONTH) && now .get(Calendar.MONTH) == date .get(Calendar.MONTH))) return DateUtils.getRelativeTimeSpanString( date.getTimeInMillis(), new Date().getTime(), DateUtils.DAY_IN_MILLIS); return ctx.getString(R.string.today); } return new SimpleDateFormat(ctx.getString(R.string.dateFormat), Locale.getDefault()).format(date.getTime()); } }