Android Utililty Methods Date to String Convert

Date mDate = null;
String dateFormated = "";
Calendar cal = Calendar.getInstance();
if (date != null && !date.isEmpty()) {
    try {
        mDate = DateTimeUtil.stringToDate(date);
    } catch (ParseException e) {
        Log.e(TAG, "Unparsable date");
...

SimpleDateFormat df = new SimpleDateFormat(DATE_TIME_FORMAT);
String result = df.format(date);
return result;

String key = format + "_" + currentLocale.toString();
DateFormat formatter = dateFormats.get(key);
if (formatter == null) {
    formatter = DateFormat.getDateTimeInstance(format, format,
            currentLocale);
    dateFormats.put(key, formatter);
return formatter.format(date);
...

SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
String date = format.format(new Date(System.currentTimeMillis()));
return date;

if (date == null || StringUtil.isEmpty(dateFormat)) {
    return null;
return new SimpleDateFormat(dateFormat, Locale.ENGLISH)
        .format(date);

final long hours = DateUtils.getFragmentInHours(date,
        Calendar.DAY_OF_MONTH);
final long minutes = DateUtils.getFragmentInMinutes(date,
        Calendar.HOUR_OF_DAY);
return hours + (minutes / 60.f);

return LONG_DATE_FORMAT.format(date);

if (date == null) {
    return null;
return getFormatString(date, LOCAL_LONG_DATE_FORMAT);

SimpleDateFormat df = new SimpleDateFormat(SHORT_DATE_TIME_FORMAT);
return df.format(date);

if (date == null) {
    return null;
return getFormatString(date, LOCAL_SHORT_DATE_FORMAT);