我正在解析twitters，我想显示自推特发布以来多久以来。但它似乎没有正确计算。我从Stackoverflow上的另一个帖子得到了公式，我试图从它构建return语句。
public static String getTwitterDate(Date date){
long milliseconds = date.getTime();
int minutes = (int) ((milliseconds / (1000*60)) % 60);
int hours = (int) ((milliseconds / (1000*60*60)) % 24);
if (hours > 0){
if (hours == 1)
return "1 hour ago";
else if (hours < 24)
return String.valueOf(hours) + " hours ago";
else
{
int days = (int)Math.ceil(hours % 24);
if (days == 1)
return "1 day ago";
else
return String.valueOf(days) + " days ago";
}
}
else
{
if (minutes == 0)
return "less than 1 minute ago";
else if (minutes == 1)
return "1 minute ago";
else
return String.valueOf(minutes) + " minutes ago";
}
}
使用此解析推特日期/时间（也来自Stackoverflow上的帖子）
public static Date parseTwitterDate(String date)
{
final String TWITTER = "EEE, dd MMM yyyy HH:mm:ss Z";
SimpleDateFormat sf = new SimpleDateFormat(TWITTER, Locale.ENGLISH);
sf.setLenient(true);
try {
return sf.parse(date);
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
推特日期示例：“created_at”：“星期六，2012年6月30日14:44:40 +0000”，
据我所知，twitters正确解析但未正确计算（getTwitterDate）。当它相差4-5小时时，有时会返回11个小时。
答案 0 :(得分：10)
使用DateUtils。它完全本地化，以人性化的方式做你想做的事。
以下是获取自动本地化的相对时间跨度表达式的示例：
long time = ... // The Twitter post time stamp
long now = System.currentTimeMillis();
CharSequence relativeTimeStr = DateUtils.getRelativeTimeSpanString(time,
now, DateUtils.SECOND_IN_MILLIS, DateUtils.FORMAT_ABBREV_RELATIVE);
产生“10秒前”或“5分钟”等输出。
答案 1 :(得分：4)
long milliseconds = date.getTime() - new Date().getTime();
将根据推文日期与现在之间的差异进行计算。
目前，您的计算基于date.getTime()，这是自1970年1月1日午夜以来的毫秒数。因为您还引入了模数，所以您当前的函数会为您提供午夜UTC和推文之间的时间。
答案 2 :(得分：3)
你可以修改输入变量“timeAtMiliseconds”，因为我的例子是日期格式为毫秒。
private static SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
private static SimpleDateFormat formatterYear = new SimpleDateFormat("MM/dd/yyyy");
public static String parseDate(@NotNull Long timeAtMiliseconds) {
timeAtMiliseconds *= 1000L; //Check if this is unnecessary for your use
if (timeAtMiliseconds == 0) {
return "";
}
//API.log("Day Ago "+dayago);
String result = "now";
String dataSot = formatter.format(new Date());
Calendar calendar = Calendar.getInstance();
long dayagolong = timeAtMiliseconds;
calendar.setTimeInMillis(dayagolong);
String agoformater = formatter.format(calendar.getTime());
Date CurrentDate = null;
Date CreateDate = null;
try {
CurrentDate = formatter.parse(dataSot);
CreateDate = formatter.parse(agoformater);
long different = Math.abs(CurrentDate.getTime() - CreateDate.getTime());
long secondsInMilli = 1000;
long minutesInMilli = secondsInMilli * 60;
long hoursInMilli = minutesInMilli * 60;
long daysInMilli = hoursInMilli * 24;
long elapsedDays = different / daysInMilli;
different = different % daysInMilli;
long elapsedHours = different / hoursInMilli;
different = different % hoursInMilli;
long elapsedMinutes = different / minutesInMilli;
different = different % minutesInMilli;
long elapsedSeconds = different / secondsInMilli;
if (elapsedDays == 0) {
if (elapsedHours == 0) {
if (elapsedMinutes == 0) {
if (elapsedSeconds < 0) {
return "0" + " s";
} else {
if (elapsedSeconds > 0 && elapsedSeconds < 59) {
return "now";
}
}
} else {
return String.valueOf(elapsedMinutes) + "m ago";
}
} else {
return String.valueOf(elapsedHours) + "h ago";
}
} else {
if (elapsedDays <= 29) {
return String.valueOf(elapsedDays) + "d ago";
}
if (elapsedDays > 29 && elapsedDays <= 58) {
return "1Mth ago";
}
if (elapsedDays > 58 && elapsedDays <= 87) {
return "2Mth ago";
}
if (elapsedDays > 87 && elapsedDays <= 116) {
return "3Mth ago";
}
if (elapsedDays > 116 && elapsedDays <= 145) {
return "4Mth ago";
}
if (elapsedDays > 145 && elapsedDays <= 174) {
return "5Mth ago";
}
if (elapsedDays > 174 && elapsedDays <= 203) {
return "6Mth ago";
}
if (elapsedDays > 203 && elapsedDays <= 232) {
return "7Mth ago";
}
if (elapsedDays > 232 && elapsedDays <= 261) {
return "8Mth ago";
}
if (elapsedDays > 261 && elapsedDays <= 290) {
return "9Mth ago";
}
if (elapsedDays > 290 && elapsedDays <= 319) {
return "10Mth ago";
}
if (elapsedDays > 319 && elapsedDays <= 348) {
return "11Mth ago";
}
if (elapsedDays > 348 && elapsedDays <= 360) {
return "12Mth ago";
}
if (elapsedDays > 360 && elapsedDays <= 720) {
return "1 year ago";
}
if (elapsedDays > 720) {
Calendar calendarYear = Calendar.getInstance();
calendarYear.setTimeInMillis(dayagolong);
return formatterYear.format(calendarYear.getTime()) + "";
}
}
} catch (java.text.ParseException e) {
e.printStackTrace();
}
return result;
}
//USAGE
Log.d("TAG Pretty date: ", parseDate(System.currentTimeMillis()));
答案 3 :(得分：0)
现在有一天推特时间响应如下： 星期四03月05日03:13:48 +0000 2015
我将它们转换为 5秒前/ 5分钟前/ 5小时前/ 5天前 来调用服装功能：
public void TwitterTimeDifferentitaion(String responseTime) {
SimpleDateFormat formatter = new SimpleDateFormat("EEE MMM dd HH:mm:ss Z yyyy");
ParsePosition pos = new ParsePosition(0);
long then = formatter.parse(responseTime, pos).getTime();
long now = new Date().getTime();
long seconds = (now - then) / 1000;
long minutes = seconds / 60;
long hours = minutes / 60;
long days = hours / 24;
String friendly = null;
long num = 0;
if (days > 0) {
num = days;
friendly = days + " day";
}
else if (hours > 0) {
num = hours;
friendly = hours + " hour";
}
else if (minutes > 0) {
num = minutes;
friendly = minutes + " minute";
}
else {
num = seconds;
friendly = seconds + " second";
}
if (num > 1) {
friendly += "s";
}
createdAt = friendly + " ago";
System.out.println("TotalTime>>" + createdAt);
}
每当响应格式改变而不是SimpleDateFormat（）时也改变＆amp;工作完美.. !!!
答案 4 :(得分：-1)
long daysDifference = calender01.getTime（）-calender02.getTime（）;
if (TimeUnit.MILLISECONDS.toHours(daysDifference) <= 24) {
if (TimeUnit.MILLISECONDS.toHours(daysDifference) == 0) {
long days = TimeUnit.MILLISECONDS.toMinutes(daysDifference);
dayCounter.setText(days + " minute(s) more");
} else {
long days = TimeUnit.MILLISECONDS.toHours(daysDifference);
dayCounter.setText(days + " hours(s) more");
}
} else {
long days = TimeUnit.MILLISECONDS.toDays(daysDifference + 24 * 60 * 60 * 1000);
dayCounter.setText(days + " day(s) more");
}