java - 根据当前位置/当前时区获取时间

Question

我想根据当前时区获取当前时间，即使我从手机更改当前时区并更改时间，但我仍然应该能够获取当前时间和日期。如何得到它？

Time currentTime = new Time();
currentTime.setToNow();

Calendar cal = Calendar.getInstance();
TimeZone tz = cal.getTimeZone();

Date date = cal.getTime();
strDate = date.toString();

Answer 1

使用该方法获取本地时间

   public static Date getLocalDate(String timeStamp) {
        int index = timeStamp.indexOf("+");
        String dateTime;
        if (index > 0) {
            timeStamp = timeStamp.substring(0, index);
        }

        int indexGMT = timeStamp.indexOf("GMT");
        int indexPlus = timeStamp.indexOf("+");
        if (indexGMT > 0) {
            dateTime = timeStamp.substring(0, indexGMT);
        } else if (indexPlus > 0) {
            dateTime = timeStamp.substring(0, indexPlus);
        } else {
            dateTime = timeStamp;
        }
        SimpleDateFormat sdfgmt = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        sdfgmt.setTimeZone(TimeZone.getTimeZone("GMT"));
        SimpleDateFormat sdfmad = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        sdfmad.setTimeZone(TimeZone.getDefault());
        Date gmtDate;
        Date localDate = null;
        try {
            gmtDate = sdfgmt.parse(dateTime);
            localDate = sdfmad.parse(sdfmad.format(gmtDate));
        } catch (ParseException e) {

        }
        return localDate;
    }

要获取当前的 UNIX 时间戳，可以使用以下代码

 long unixTime = System.currentTimeMillis() / 1000L;