android - 如何以天时分秒的形式从两个日期中获取差异

Question

我有两个日期，一个是 future 日期，另一个是当前日期。我想知道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 android 编程的新手。

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找出差异，但它显示 71 天是正确的，但接下来它显示 1716 小时 102987 分钟 6179267 秒我希望它显示为倒计时，请帮助我解决这个问题。

Answer 1

你总是用整个时间差来计算。

您首先必须计算天数，然后计算剩余的小时数。然后剩下的就是 session 记录等等。

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();
    }
}