Time tools

@SuppressLint({
    "SimpleDateFormat"})
public class TimeUtils {
    

    public static String COMPLETE_DATE_FORMAT = "yyyy-MM-dd HH:mm:ss";
    public static String DATE_FORMAT = "yyyy-MM-dd";
    public static String TIME_FORMAT = "HH:mm:ss";

    /** *  Get the current time String type  * * @return  Time  */
    public static String getStringDate(String format) {
    
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat(format);
        Date date = new Date(System.currentTimeMillis());
        return simpleDateFormat.format(date);
    }

    /** *  Get the current time long type  * * @return  Time  */
    public static long getLongDate() {
    
        return System.currentTimeMillis();
    }

    /** * long Type time is converted to string * * @param time  Time to be converted  * @return  Conversion time  */
    public static String formatTime(String format, long time) {
    
        SimpleDateFormat df = new SimpleDateFormat(format);
        return df.format(new Date(time));
    }

    /** *  Calculate the number of days between two dates  * * @param startDate  Starting time  * @param endDate  End time  * @return  Days  */
    public static long getDateDistance(String startDate, String endDate) {
    
        Date newStartDate = null;
        Date newEndDate = null;
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat(DATE_FORMAT);
        try {
    
            newStartDate = simpleDateFormat.parse(startDate);
            newEndDate = simpleDateFormat.parse(endDate);
        } catch (ParseException e) {
    
            e.printStackTrace();
        }
        Calendar startInstance = Calendar.getInstance();
        startInstance.setTime(newStartDate);
        Calendar endInstance = Calendar.getInstance();
        endInstance.setTime(newEndDate);
        return (endInstance.getTimeInMillis() - startInstance.getTimeInMillis()) / (1000 * 3600 * 24);
    }

    /** *  Calculate the date minus the time difference  * * @param day  date  * @param num  Time difference  * @return  Calculate the date  */
    public static String getDateDistance(String day, int num) {
    
        Date newDate;
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat(DATE_FORMAT);
        try {
    
            newDate = simpleDateFormat.parse(day);
            Date distance = new Date(newDate.getTime() - (long) num * 24 * 60 * 60 * 1000);
            return simpleDateFormat.format(distance);
        } catch (ParseException e) {
    
            e.printStackTrace();
        }
        return null;
    }
}