Android工具类篇 超详细的时间工具类

Posted 2022-02-09 彭老希

/**
 * 时间工具类
 */
@Component
public class TimeUtil 

    /**
     * 获取当天开始时间
     * @return
     */
    public static Date getDayBegin()
        Calendar cal=Calendar.getInstance();
        cal.set(Calendar.HOUR_OF_DAY, 0);//0点
        cal.set(Calendar.MINUTE, 0);//0分
        cal.set(Calendar.SECOND, 0);//0秒
        cal.set(Calendar.MILLISECOND, 0);//0毫秒
        return cal.getTime();
    


    /**
     * 获取当天结束时间
     * @return
     */
    public static Date getDayEnd()
        Calendar cal=Calendar.getInstance();
        cal.set(Calendar.HOUR_OF_DAY, 23);//23点
        cal.set(Calendar.MINUTE, 59);//59分
        cal.set(Calendar.SECOND, 59);//59秒
        return cal.getTime();
    


    /**
     * 获取昨天开始时间
     * @return
     */
    public static Date getBeginDayOfYesterday()
        Calendar cal=Calendar.getInstance();
        cal.setTime(getDayBegin());//当天开始时间
        cal.add(Calendar.DAY_OF_MONTH, -1);//当天月份天数减1
        return cal.getTime();
    


    /**
     * 获取昨天结束时间
     * @return
     */
    public static Date getEndDayOfYesterday()
        Calendar cal=Calendar.getInstance();
        cal.setTime(getDayEnd());//当天结束时间
        cal.add(Calendar.DAY_OF_MONTH, -1);//当天月份天数减1
        return cal.getTime();
    


    /**
     * 获取明天开始时间
     * @return
     */
    public static Date getBeginDayOfTomorrow()
        Calendar cal=Calendar.getInstance();
        cal.setTime(getDayBegin());//当天开始时间
        cal.add(Calendar.DAY_OF_MONTH, 1);//当天月份天数加1
        return cal.getTime();
    


    /**
     * 获取明天结束时间
     * @return
     */
    public static Date getEndDayOfTomorrow()
        Calendar cal=Calendar.getInstance();
        cal.setTime(getDayEnd());//当天结束时间
        cal.add(Calendar.DAY_OF_MONTH, 1);//当天月份天数加1
        return cal.getTime();
    


    /**
     * 获取某个日期的开始时间
     * @param d
     * @return
     */
    public static Timestamp getDayStartTime(Date d) 
        Calendar calendar=Calendar.getInstance();
        if(null!=d)
            calendar.setTime(d);
        
        calendar.set(calendar.get(Calendar.YEAR),
                calendar.get(Calendar.MONTH),
                calendar.get(Calendar.DAY_OF_MONTH), 0, 0, 0);
        calendar.set(Calendar.MILLISECOND, 0);
        return new Timestamp(calendar.getTimeInMillis());
    


    /**
     * 获取某个日期的结束时间
     * @param d
     * @return
     */
    public static Timestamp getDayEndTime(Date d) 
        Calendar calendar=Calendar.getInstance();
        if(null!=d)
            calendar.setTime(d);
        
        calendar.set(calendar.get(Calendar.YEAR),
                calendar.get(Calendar.MONTH),
                calendar.get(Calendar.DAY_OF_MONTH), 23, 59, 59);
        calendar.set(Calendar.MILLISECOND, 999);
        return new Timestamp(calendar.getTimeInMillis());
    


    /**
     * 获取本周的开始时间
     * @return
     */
    @SuppressWarnings("unused")
    public static Date getBeginDayOfWeek()
        Date date=new Date();
        if(date==null)
            return null;
        
        Calendar cal=Calendar.getInstance();
        cal.setTime(date);
        int dayOfWeek=cal.get(Calendar.DAY_OF_WEEK);
        if(dayOfWeek==1)
            dayOfWeek+=7;
        
        cal.add(Calendar.DATE, 2-dayOfWeek);
        return getDayStartTime(cal.getTime());
    


    /**
     * 获取本周的结束时间
     * @return
     */
    public static Date getEndDayOfWeek()
        Calendar cal=Calendar.getInstance();
        cal.setTime(getBeginDayOfWeek());
        cal.add(Calendar.DAY_OF_WEEK, 6);
        Date weekEndSta = cal.getTime();
        return getDayEndTime(weekEndSta);
    


    /**
     * 获取上周开始时间
     */
    @SuppressWarnings("unused")
    public static Date getBeginDayOfLastWeek() 
        Date date=new Date();
        if (date==null) 
            return null;
        
        Calendar cal=Calendar.getInstance();
        cal.setTime(date);
        int dayofweek=cal.get(Calendar.DAY_OF_WEEK);
        if (dayofweek==1) 
            dayofweek+=7;
        
        cal.add(Calendar.DATE, 2-dayofweek-7);
        return getDayStartTime(cal.getTime());
    


    /**
     * 获取上周的结束时间
     * @return
     */
    public static Date getEndDayOfLastWeek()
        Calendar cal=Calendar.getInstance();
        cal.setTime(getBeginDayOfLastWeek());
        cal.add(Calendar.DAY_OF_WEEK, 6);
        Date weekEndSta = cal.getTime();
        return getDayEndTime(weekEndSta);
    


    /**
     * 获取今年是哪一年
     * @return
     */
    public static Integer getNowYear()
        Date date = new Date();
        GregorianCalendar gc=(GregorianCalendar)Calendar.getInstance();
        gc.setTime(date);
        return Integer.valueOf(gc.get(1));
    


    /**
     * 获取本月是哪一月
     * @return
     */
    public static int getNowMonth() 
        Date date = new Date();
        GregorianCalendar gc=(GregorianCalendar)Calendar.getInstance();
        gc.setTime(date);
        return gc.get(2) + 1;
    


    /**
     * 获取本月的开始时间
     * @return
     */
    public static Date getBeginDayOfMonth() 
        Calendar calendar=Calendar.getInstance();
        calendar.set(getNowYear(), getNowMonth()-1, 1);
        return getDayStartTime(calendar.getTime());
    


    /**
     * 获取本月的结束时间
     * @return
     */
    public static Date getEndDayOfMonth() 
        Calendar calendar=Calendar.getInstance();
        calendar.set(getNowYear(), getNowMonth()-1, 1);
        int day = calendar.getActualMaximum(5);
        calendar.set(getNowYear(), getNowMonth()-1, day);
        return getDayEndTime(calendar.getTime());
    


    /**
     * 获取上月的开始时间
     * @return
     */
    public static Date getBeginDayOfLastMonth() 
        Calendar calendar=Calendar.getInstance();
        calendar.set(getNowYear(), getNowMonth()-2, 1);
        return getDayStartTime(calendar.getTime());
    


    /**
     * 获取上月的结束时间
     * @return
     */
    public static Date getEndDayOfLastMonth() 
        Calendar calendar=Calendar.getInstance();
        calendar.set(getNowYear(), getNowMonth()-2, 1);
        int day = calendar.getActualMaximum(5);
        calendar.set(getNowYear(), getNowMonth()-2, day);
        return getDayEndTime(calendar.getTime());
    


    /**
     * 获取本年的开始时间
     * @return
     */
    public static java.util.Date getBeginDayOfYear() 
        Calendar cal=Calendar.getInstance();
        cal.set(Calendar.YEAR, getNowYear());
        cal.set(Calendar.MONTH, Calendar.JANUARY);
        cal.set(Calendar.DATE, 1);
        return getDayStartTime(cal.getTime());
    


    /**
     * 获取本年的结束时间
     * @return
     */
    public static java.util.Date getEndDayOfYear() 
        Calendar cal = Calendar.getInstance();
        cal.set(Calendar.YEAR, getNowYear());
        cal.set(Calendar.MONTH, Calendar.DECEMBER);
        cal.set(Calendar.DATE, 31);
        return getDayEndTime(cal.getTime());
    


    /**
     * 两个日期相减得到的天数
     * @param beginDate
     * @param endDate
     * @return
     */
    public static int getDiffDays(Date beginDate, Date endDate) 
        if(beginDate==null||endDate==null) 
            throw new IllegalArgumentException("getDiffDays param is null!");
        
        long diff=(endDate.getTime()-beginDate.getTime())/(1000*60*60*24);
        int days = new Long(diff).intValue();
        return days;
    


    /**
     * 两个日期相减得到的毫秒数
     * @param beginDate
     * @param endDate
     * @return
     */
    public static long dateDiff(Date beginDate, Date endDate) 
        long date1ms=beginDate.getTime();
        long date2ms=endDate.getTime();
        return date2ms-date1ms;
    


    /**
     * 获取两个日期中的最大日起
     * @param beginDate
     * @param endDate
     * @return
     */
    public static Date max(Date beginDate, Date endDate) 
        if(beginDate==null) 
            return endDate;
        
        if(endDate==null) 
            return beginDate;
        
        if(beginDate.after(endDate)) //beginDate日期大于endDate
            return beginDate;
        
        return endDate;
    


    /**
     * 获取两个日期中的最小日期
     * @param beginDate
     * @param endDate
     * @return
     */
    public static Date min(Date beginDate, Date endDate) 
        if(beginDate==null) 
            return endDate;
        
        if(endDate==null) 
            return beginDate;
        
        if(beginDate.after(endDate)) 
            return endDate;
        
        return beginDate;
    


    /**
     * 获取某月该季度的第一个月
     * @param date
     * @return
     */
    public static Date getFirstSeasonDate(Date date) 
        final int[] SEASON= 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4 ;
        Calendar cal=Calendar.getInstance();
        cal.setTime(date);
        int sean = SEASON[cal.get(Calendar.MONTH)];
        cal.set(Calendar.MONTH, sean*3-3);
        return cal.getTime();
    


    /**
     * 返回某个日期下几天的日期
     * @param date
     * @param i
     * @return
     */
    public static Date getNextDay(Date date, int i) 
        Calendar cal=new GregorianCalendar();
        cal.setTime(date);
        cal.set(Calendar.DATE,cal.get(Calendar.DATE)+i);
        return cal.getTime();
    


    /**
     * 返回某个日期前几天的日期
     * @param date
     * @param i
     * @return
     */
    public static Date getFrontDay(Date date, int i) 
        Calendar cal=new GregorianCalendar()
以上是关于Android工具类篇 超详细的时间工具类的主要内容，如果未能解决你的问题，请参考以下文章
 
 Android工具类篇 图片拼接
 Android工具类篇 图片拼接
 Android工具类篇 图片工具类
 Android工具类篇 动画工具类
 Android工具类篇 dp转px工具类
 Android工具类篇 List数据分页工具类