android 获取毫秒数的日期

Question

我有一个以毫秒为单位的未来日期，我想将其转换为 "Calendar Instance"，如下所示：

long FutureDateinMilliSeconds = System.currentTimeMillis() + 68435123141;

Calendar calToday = Calendar.getInstance();
calToday.set(Calendar.YEAR, YEAR VALUE OF FutureDateinMilliSeconds );
calToday.set(Calendar.MONTH, MONTH VALUE OF FutureDateinMilliSeconds);
calToday.set(Calendar.DATE, DAY VALUE OF FutureDateinMilliSeconds);
calToday.set(Calendar.HOUR_OF_DAY, 0);
calToday.set(Calendar.MINUTE, 0);
calToday.set(Calendar.SECOND, 0);
calToday.set(Calendar.MILLISECOND, 0);

希望您理解我的问题，非常感谢您的帮助。

Answer 1

请按要求使用此方法，

public static String getDate(long milliSeconds, String dateFormat)
    {
        // Create a DateFormatter object for displaying date in specified format.
        SimpleDateFormat formatter = new SimpleDateFormat(dateFormat);

        // Create a calendar object that will convert the date and time value in milliseconds to date. 
         Calendar calendar = Calendar.getInstance();
         calendar.setTimeInMillis(milliSeconds);
         return formatter.format(calendar.getTime());
    }
    }

Answer 2

这是在 android

中将日期作为日期对象获取所需执行的操作

  long FutureDateinMilliSeconds = System.currentTimeMillis() + 68435123141l;
    Date fDate = new Date(FutureDateinMilliSeconds );

如果您想要特定格式的日期，您可以使用

String fDate = new SimpleDateFormat("yyyy-MM-dd").format(cDate);

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