Generate a ISO 8601 date : Date « Date Type « Android






  1. Android
  2. Date Type
  3. Date

Generate a ISO 8601 date

     
import java.util.Calendar;

class Main {

  /**
   * Generate a ISO 8601 date
   * 
   * @param date
   *            a Date instance
   * @return a string representing the date in the ISO 8601 format
   */
  public static String getIsoDate(Calendar calendar) {
    StringBuffer buffer = new StringBuffer();
    buffer.append(calendar.get(Calendar.YEAR));
    buffer.append("-");
    buffer.append(twoDigit(calendar.get(Calendar.MONTH) + 1));
    buffer.append("-");
    buffer.append(twoDigit(calendar.get(Calendar.DAY_OF_MONTH)));
    buffer.append("T");
    buffer.append(twoDigit(calendar.get(Calendar.HOUR_OF_DAY)));
    buffer.append(":");
    buffer.append(twoDigit(calendar.get(Calendar.MINUTE)));
    buffer.append(":");
    buffer.append(twoDigit(calendar.get(Calendar.SECOND)));
    buffer.append(".");
    buffer.append(twoDigit(calendar.get(Calendar.MILLISECOND) / 10));
    // buffer.append("Z");
    int offset = calendar.get(Calendar.ZONE_OFFSET) / (1000 * 60 * 60);
    if (offset > 0) {
      buffer.append("+");
    } else {
      buffer.append("-");
    }
    buffer.append(twoDigit(offset));
    buffer.append(":00");
    return buffer.toString();
  }

  public static String twoDigit(int i) {
    if (i >= 0 && i < 10) {
      return "0" + String.valueOf(i);
    }
    return String.valueOf(i);
  }
}








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