Android Utililty Methods Date String Parse

List of utility methods to do Date String Parse

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Description

The list of methods to do Date String Parse are organized into topic(s).

Method

StringparseIcalDateToString(Date date, TimeZone tz)
Pase the Ical Date to a String 
StringBuilder sb = new StringBuilder();
SimpleDateFormat timeFormat = new SimpleDateFormat("HHmm",
        Locale.getDefault());
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyyMMdd",
        Locale.getDefault());
if (tz != null) {
    timeFormat.setTimeZone(tz);
    dateFormat.setTimeZone(tz);
...
StringparseDate(String s)
parse Date 
SimpleDateFormat inputFormat = new SimpleDateFormat("MMM dd, yyyy");
SimpleDateFormat outputFormat = new SimpleDateFormat("yyyy-MM-dd");
try {
    return outputFormat.format(inputFormat.parse(s));
} catch (ParseException e) {
    return "";
DateparseDate(String value)
Loops over all the possible date formats and tries to find the right one. 
if (value == null) {
    return null;
Date date = null;
for (ThreadLocal<SimpleDateFormat> format : DATETIME_FORMATS) {
    try {
        date = format.get().parse(value);
        break;
...
DateparseLastfmDate(String date)
parse Lastfm Date 
if (date == null) {
    return null;
SimpleDateFormat dateFormat = new SimpleDateFormat(
        "yyyy-MM-dd'T'HH:mm:ss");
dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
Date playlistDate = null;
try {
...
DateparseLastfmDateAlbum(String date)
parse Lastfm Date Album 
if (date == null) {
    return null;
SimpleDateFormat dateFormat = new SimpleDateFormat(
        "dd MMMM yyyy, HH:mm");
Date parsedDate = null;
try {
    parsedDate = dateFormat.parse(date);
...
DateparseLastfmDateLong(String date)
parse Lastfm Date Long 
if (date == null) {
    return null;
SimpleDateFormat dateFormat = new SimpleDateFormat(
        "EEE, dd MMMM yyyy HH:mm:ss ZZZZ");
Date parsedDate = null;
try {
    parsedDate = dateFormat.parse(date);
...
booleanisDate(String date)
is Date 
String format = "^((\\d{2}(([02468][048])|([13579][26]))[\\-\\/\\s]?((((0?[13578])|(1[02]))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])))))|(\\d{2}(([02468][1235679])|([13579][01345789]))[\\-\\/\\s]?((((0?[13578])|(1[02]))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\\-\\/\\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))";
Pattern pattern = Pattern.compile(format);
Matcher matcher = pattern.matcher(date);
return matcher.matches();