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TimeUtils.java
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package com.youjiang.hualuo.utils;
import android.text.format.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;
/**
* @author ChayChan
* @description: 关于时间的工具类
*/
public class TimeUtils {
public static final long ONE_MINUTE_MILLIONS = 60 * 1000;
public static final long ONE_HOUR_MILLIONS = 60 * ONE_MINUTE_MILLIONS;
public static SimpleDateFormat sdf = new SimpleDateFormat(
"yyyy-MM-dd HH:mm:ss");
/**
* 得到剩余天数
*
* @param endTime 结束时间
* @return
*/
public static int getDayLast(String endTime) {
try {
long nowtime = new Date().getTime();
long lastTime = new SimpleDateFormat("yyyy-MM-dd").parse(endTime).getTime();
long distance = lastTime - nowtime;
if (distance <= 0) {
//如果是小于或等于0，则为0
return 0;
}
double rate = distance / (1.0f * 24 * 3600 * 1000);
int day = (int) (rate + 0.5f);
return day;
} catch (ParseException e) {
e.printStackTrace();
return -1;
}
}
/**
* 获取短时间格式
*
* @return
*/
public static String getShortTime(long millis) {
Date date = new Date(millis);
Date curDate = new Date();
String str = "";
long durTime = curDate.getTime() - date.getTime();
int dayStatus = calculateDayStatus(date, new Date());
if (durTime <= 10 * ONE_MINUTE_MILLIONS) {
str = "刚刚";
} else if (durTime < ONE_HOUR_MILLIONS) {
str = durTime / ONE_MINUTE_MILLIONS + "分钟前";
} else if (dayStatus == 0) {
str = durTime / ONE_HOUR_MILLIONS + "小时前";
} else if (dayStatus == -1) {
str = "昨天" + DateFormat.format("HH:mm", date);
} else if (isSameYear(date, curDate) && dayStatus < -1) {
str = DateFormat.format("MM-dd", date).toString();
} else {
str = DateFormat.format("yyyy-MM", date).toString();
}
return str;
}
/**
* 判断是否是同一年
* @param targetTime
* @param compareTime
* @return
*/
public static boolean isSameYear(Date targetTime, Date compareTime) {
Calendar tarCalendar = Calendar.getInstance();
tarCalendar.setTime(targetTime);
int tarYear = tarCalendar.get(Calendar.YEAR);
Calendar compareCalendar = Calendar.getInstance();
compareCalendar.setTime(compareTime);
int comYear = compareCalendar.get(Calendar.YEAR);
return tarYear == comYear;
}
/**
* 判断是否处于今天还是昨天，0表示今天，-1表示昨天，小于-1则是昨天以前
* @param targetTime
* @param compareTime
* @return
*/
public static int calculateDayStatus(Date targetTime, Date compareTime) {
Calendar tarCalendar = Calendar.getInstance();
tarCalendar.setTime(targetTime);
int tarDayOfYear = tarCalendar.get(Calendar.DAY_OF_YEAR);
Calendar compareCalendar = Calendar.getInstance();
compareCalendar.setTime(compareTime);
int comDayOfYear = compareCalendar.get(Calendar.DAY_OF_YEAR);
return tarDayOfYear - comDayOfYear;
}
/**
* 将秒数转换成00:00的字符串，如 118秒 -> 01:58
* @param time
* @return
*/
public static String secToTime(int time) {
String timeStr = null;
int hour = 0;
int minute = 0;
int second = 0;
if (time <= 0)
return "00:00";
else {
minute = time / 60;
if (minute < 60) {
second = time % 60;
timeStr = unitFormat(minute) + ":" + unitFormat(second);
} else {
hour = minute / 60;
if (hour > 99)
return "99:59:59";
minute = minute % 60;
second = time - hour * 3600 - minute * 60;
timeStr = unitFormat(hour) + ":" + unitFormat(minute) + ":"
+ unitFormat(second);
}
}
return timeStr;
}
public static String unitFormat(int i) {
String retStr = null;
if (i >= 0 && i < 10)
retStr = "0" + Integer.toString(i);
else
retStr = "" + i;
return retStr;
}
/**
* 获取当前月1号 返回格式yyyy-MM-dd (eg: 2007-06-01)
*
* @return
*/
public static String getMonthBegin() {
String yearMonth = new SimpleDateFormat(
"yyyy-MM").format(new Date());
return yearMonth + "-01";
}
/**
* 与当前时间对比
* @param time
* @return
*/
public static long compareTime(String time) {
long timeLong = 0;
long curTimeLong = 0;
try {
timeLong = sdf.parse(time).getTime();
curTimeLong = sdf.parse(getCurrentTimeString())
.getTime();
} catch (ParseException e) {
e.printStackTrace();
}
return curTimeLong - timeLong;// 当前时间减去传入的时间
}
/**
* 返回yyyy-MM-dd HH:mm:ss类型的时间字符串
*/
public static String getCurrentTimeString() {
return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss")//
.format(new Date());
}
/**
* @param milliseconds 时间值
* @param isDetail 是否需要显示具体时间段 + 时分和星期 + 时分
* @return
*/
public static String getTimeShowString(long milliseconds,boolean isDetail) {
String dataString = "";
String timeStringBy24 = "";
Date currentTime = new Date(milliseconds);
Date today = new Date();
Calendar todayStart = Calendar.getInstance();
todayStart.set(Calendar.HOUR_OF_DAY, 0);
todayStart.set(Calendar.MINUTE, 0);
todayStart.set(Calendar.SECOND, 0);
todayStart.set(Calendar.MILLISECOND, 0);
Date todaybegin = todayStart.getTime();
Date yesterdaybegin = new Date(todaybegin.getTime() - 3600 * 24 * 1000);
Date preyesterday = new Date(
yesterdaybegin.getTime() - 3600 * 24 * 1000);
if (!currentTime.before(todaybegin)) {
dataString = "今天";
} else if (!currentTime.before(yesterdaybegin)) {
dataString = "昨天";
} else if (!currentTime.before(preyesterday)) {
dataString = "前天";
} else if (isSameWeekDates(currentTime, today)) {
dataString = getWeekOfDate(currentTime);
} else {
SimpleDateFormat dateformatter = new SimpleDateFormat("yyyy-MM-dd",
Locale.getDefault());
dataString = dateformatter.format(currentTime);
}
SimpleDateFormat timeformatter24 = new SimpleDateFormat("HH:mm",
Locale.getDefault());
timeStringBy24 = timeformatter24.format(currentTime);
if (isDetail) {//显示具体的时间
//在聊天界面显示时间，如果是今天则显示当前时间段加上时和分 如上午 9:58
if (!currentTime.before(todaybegin)) {//如果是今天
return getTodayTimeBucket(currentTime);//根据时间段分为凌晨 上午 下午等
} else {
return dataString + " " + timeStringBy24;//如果是昨天 则是 昨天 9：58 如果是同在一个星期，前天之前的时间则显示 星期一 9：58
}
}else{
//在会话记录界面不需要展示很具体的时间
if (!currentTime.before(todaybegin)) {//如果是今天
return timeStringBy24;//直接返回时和分 如 9:58
}else{
return dataString;//如果不是今天，不需要展示时和分 如 昨天 前天 星期一
}
}
}
/**
* 判断两个日期是否在同一周
*
* @param date1
* @param date2
* @return
*/
public static boolean isSameWeekDates(Date date1, Date date2) {
Calendar cal1 = Calendar.getInstance();
Calendar cal2 = Calendar.getInstance();
cal1.setTime(date1);
cal2.setTime(date2);
int subYear = cal1.get(Calendar.YEAR) - cal2.get(Calendar.YEAR);
if (0 == subYear) {
if (cal1.get(Calendar.WEEK_OF_YEAR) == cal2
.get(Calendar.WEEK_OF_YEAR))
return true;
} else if (1 == subYear && 11 == cal2.get(Calendar.MONTH)) {
// 如果12月的最后一周横跨来年第一周的话则最后一周即算做来年的第一周
if (cal1.get(Calendar.WEEK_OF_YEAR) == cal2
.get(Calendar.WEEK_OF_YEAR))
return true;
} else if (-1 == subYear && 11 == cal1.get(Calendar.MONTH)) {
if (cal1.get(Calendar.WEEK_OF_YEAR) == cal2
.get(Calendar.WEEK_OF_YEAR))
return true;
}
return false;
}
/**
* 根据日期获得星期
*
* @param date
* @return
*/
public static String getWeekOfDate(Date date) {
String[] weekDaysName = { "星期日", "星期一", "星期二", "星期三", "星期四", "星期五",
"星期六" };
// String[] weekDaysCode = { "0", "1", "2", "3", "4", "5", "6" };
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
int intWeek = calendar.get(Calendar.DAY_OF_WEEK) - 1;
return weekDaysName[intWeek];
}
/**
* 根据不同时间段，显示不同时间
*
* @param date
* @return
*/
public static String getTodayTimeBucket(Date date) {
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
SimpleDateFormat timeformatter0to11 = new SimpleDateFormat("KK:mm",
Locale.getDefault());
SimpleDateFormat timeformatter1to12 = new SimpleDateFormat("hh:mm",
Locale.getDefault());
int hour = calendar.get(Calendar.HOUR_OF_DAY);
if (hour >= 0 && hour < 5) {
return "凌晨 " + timeformatter0to11.format(date);
} else if (hour >= 5 && hour < 12) {
return "上午 " + timeformatter0to11.format(date);
} else if (hour >= 12 && hour < 18) {
return "下午 " + timeformatter1to12.format(date);
} else if (hour >= 18 && hour < 24) {
return "晚上 " + timeformatter1to12.format(date);
}
return "";
}
/**
* 获取当前时间 yyyy-MM-dd格式
*
* @return
*/
public static String getCurrentTimeYMD() {
return new SimpleDateFormat("yyyy-MM-dd")//
.format(new Date());
}
/**
* 将yyyy-MM-dd的字符串转换成Date对象
*/
public static Date getDateByYMD(String time) {
Date date = null;
try {
date = new SimpleDateFormat("yyyy-MM-dd").parse(time);
} catch (ParseException e) {
e.printStackTrace();
}
return date;
}
}