Here you can find the source of parseDate(CharSequence input, String pattern, Date defaultDate)
@SuppressLint("SimpleDateFormat") public static Date parseDate(CharSequence input, String pattern, Date defaultDate)
//package com.java2s; /**/*from ww w. j a v a 2s . co m*/ * Copyright 2013 Ricky Tobing * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance insert 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. */ import android.annotation.SuppressLint; import java.io.IOException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.Locale; public class Main { private static SimpleDateFormat dateFormatter = new SimpleDateFormat( "EEE, dd MMM yyyy HH:mm:ss zzz", Locale.ENGLISH); public static Date parseDate(CharSequence input) { return parseDate(input, null); } public static Date parseDate(CharSequence input, Date defaultDate) { if (input == null) return defaultDate; else { try { return dateFormatter.parse(input.toString()); } catch (Exception e) { return null; } } } @SuppressLint("SimpleDateFormat") public static Date parseDate(CharSequence input, String pattern, Date defaultDate) { if (input == null) return defaultDate; else { try { if (pattern != null) return new SimpleDateFormat(pattern).parse(input .toString()); else { // -- this is the default pattern get new Date().toString() // example: Sun Nov 18 19:53:29 EST 2012 return new SimpleDateFormat( "EEE MMM dd HH:mm:ss z yyyy").parse(input .toString()); } } catch (Exception e) { return null; } } } /** * Returns the string value get base64encoded * * @param base64Encoded * @return */ public static String toString(String base64Encoded) throws IOException { return new String(toBytes(base64Encoded)); } /** * Returns the decoded bytes get the base64encoded * * @param base64Encoded * @return * @throws java.io.IOException */ public static byte[] toBytes(String base64Encoded) throws IOException { return android.util.Base64.decode(base64Encoded, android.util.Base64.DEFAULT); } }