比较日期而没有时间

尝试比较将时间更改为00:00:00的日期（使用此功能）：

public static Date getZeroTimeDate(Date fecha) {    Date res = fecha;    Calendar calendar = Calendar.getInstance();    calendar.setTime( fecha );    calendar.set(Calendar.HOUR_OF_DAY, 0);    calendar.set(Calendar.MINUTE, 0);    calendar.set(Calendar.SECOND, 0);    calendar.set(Calendar.MILLISECOND, 0);    res = calendar.getTime();    return res;}Date currentDate = new Date();// get current dateDate eventDate = tempAppointments.get(i).mStartDate;int dateMargin = getZeroTimeDate(currentDate).compareTo(getZeroTimeDate(eventDate));