如何以天时分秒的形式获得两个日期的差异答案

【问题标题】：How to get Difference from two dates in form of days hours minutes and seconds如何以天时分秒的形式获得两个日期的差异
【发布时间】：2014-10-26 06:03:53
【问题描述】：

我有两个日期，一个是未来日期，另一个是当前日期。我想得到这两个日期之间的区别，我正在使用以下代码，但输出不是我想要的，请帮助我解决这个问题。我是安卓编程新手。

public void getDateDifference(String FutureDate) {
    SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");

    try {

        Date currentDate = dateFormat.parse(FutureDate);
        System.out.println(currentDate);

        Date oldDate = new Date();

        long diff = currentDate.getTime() - oldDate.getTime();
        long seconds = diff / 1000;
        long minutes = seconds / 60;
        long hours = minutes / 60;
        long days = hours / 24;

        counterDaysTV.setText(days + "");
        counterMinsTV.setText(minutes + "");
        counterHoursTV.setText(hours + "");
        counterSecTV.setText(seconds + "");


    } catch (Exception e) {

        e.printStackTrace();
    }

}

我正在使用这种方法来查找差异，但它显示为正确的 71 天，但接下来显示 1716 小时 102987 分钟和 6179267 秒，我希望它显示为倒计时，请帮助我。

【问题讨论】：

标签： android timer

【解决方案1】：

你总是用整个时间差来计算。

您首先必须计算天数，然后再计算小时数。然后用这个剩余的分钟等等。

public void getDateDifference(String FutureDate) {

    SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");

    try {
        Date currentDate = dateFormat.parse(FutureDate);
        System.out.println(currentDate);

        Date oldDate = new Date();

        long diff = currentDate.getTime() - oldDate.getTime();

        long days = diff / (24 * 60 * 60 * 1000);
        diff -= days * (24 * 60 * 60 * 1000);

        long hours = diff / (60 * 60 * 1000);
        diff -= hours * (60 * 60 * 1000);

        long minutes = diff / (60 * 1000);
        diff -= minutes * (60 * 1000);

        long seconds = diff / 1000;

        counterDaysTV.setText(days + "");
        counterMinsTV.setText(minutes + "");
        counterHoursTV.setText(hours + "");
        counterSecTV.setText(seconds + "");

    } catch (Exception e) {
        e.printStackTrace();
    }
}

【讨论】：

【解决方案2】：

下面的代码可能有效，试一试...请注意，我认为这不是有效的方法...

        long days = diff / (24*60*60*1000);
        long hours=(diff/(60*60*1000))-(days*24);
        long minutes=(diff/(60*1000))-(days*24*60)-(hours*60);
        long seconds=(diff/(1000))-(days*24*60*60)-(hours*60*60)-(minutes*60);

【讨论】：

【解决方案3】：

我对 davidtrautmann 的回答做了一些修改，感谢 davidtrautmann。用户可以找到更好的方法来获取当前时间和过去日期之间的差异，以天、小时、分钟和秒为单位。用户也可以根据自己的需要进行修改。

public String getDifferentBetweenTwoDates(String pastDate ){//your input date format should be same as your dateformater

    SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    Date inputDate = null;
    try {
        inputDate = format.parse(pastDate); // format.parse("2016-04-04 20:10:10");

    }catch (ParseException e) {
        e.printStackTrace();
    }

    Calendar pastCalendar = Calendar.getInstance();
    if(inputDate!=null){
        pastCalendar.setTime(inputDate);
    }
    long pastDateTimeInMilli = pastCalendar.getTimeInMillis();

    Calendar currentCalendar = Calendar.getInstance();
    long currentDateTimeInMilli = currentCalendar.getTimeInMillis();

    String strDifference="";
    long different = currentDateTimeInMilli - pastDateTimeInMilli;

    long secondsInMilli = 1000;
    long minutesInMilli = secondsInMilli * 60;
    long hoursInMilli = minutesInMilli * 60;
    long daysInMilli = hoursInMilli * 24;

    int elapsedDays = (int)(different / daysInMilli);
    different = different % daysInMilli;

    if(elapsedDays>0){
        strDifference = ""+elapsedDays;
        return strDifference+" days ago";
    }

    int elapsedHours = (int)(different / hoursInMilli);
    different = different % hoursInMilli;
    if(elapsedHours>0){
        strDifference = ""+elapsedHours;
        return strDifference+" hours ago";
    }

    int elapsedMinutes = (int)(different / minutesInMilli);
    different = different % minutesInMilli;
    if(elapsedMinutes>0){
        strDifference = ""+elapsedMinutes;
        return strDifference+" minuts ago";
    }

    int elapsedSeconds = (int)(different / secondsInMilli);
    if(elapsedSeconds>0){
        strDifference = ""+elapsedSeconds;
        return strDifference +"  seconds ago";
    }else{
        return "just now";
    }

}

【讨论】：