package cn.qqtheme.framework.util;
import android.support.annotation.IntDef;
import android.support.annotation.NonNull;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import java.util.Locale;
/**
* 日期时间工具类
*
* @author 李玉江[QQ:1023694760]
* @since 2015/8/5
*/
public class DateUtils extends android.text.format.DateUtils {
public static final int Second = 0;
public static final int Minute = 1;
public static final int Hour = 2;
public static final int Day = 3;
@IntDef(value = {Second, Minute, Hour, Day})
@Retention(RetentionPolicy.SOURCE)
public @interface DifferenceMode {
}
public static long calculateDifferentSecond(Date startDate, Date endDate) {
return calculateDifference(startDate, endDate, Second);
}
public static long calculateDifferentMinute(Date startDate, Date endDate) {
return calculateDifference(startDate, endDate, Minute);
}
public static long calculateDifferentHour(Date startDate, Date endDate) {
return calculateDifference(startDate, endDate, Hour);
}
public static long calculateDifferentDay(Date startDate, Date endDate) {
return calculateDifference(startDate, endDate, Day);
}
public static long calculateDifferentSecond(long startTimeMillis, long endTimeMillis) {
return calculateDifference(startTimeMillis, endTimeMillis, Second);
}
public static long calculateDifferentMinute(long startTimeMillis, long endTimeMillis) {
return calculateDifference(startTimeMillis, endTimeMillis, Minute);
}
public static long calculateDifferentHour(long startTimeMillis, long endTimeMillis) {
return calculateDifference(startTimeMillis, endTimeMillis, Hour);
}
public static long calculateDifferentDay(long startTimeMillis, long endTimeMillis) {
return calculateDifference(startTimeMillis, endTimeMillis, Day);
}
/**
* 计算两个时间戳之间相差的时间戳数
*/
public static long calculateDifference(long startTimeMillis, long endTimeMillis, @DifferenceMode int mode) {
return calculateDifference(new Date(startTimeMillis), new Date(endTimeMillis), mode);
}
/**
* 计算两个日期之间相差的时间戳数
*/
public static long calculateDifference(Date startDate, Date endDate, @DifferenceMode int mode) {
long[] different = calculateDifference(startDate, endDate);
if (mode == Minute) {
return different[2];
} else if (mode == Hour) {
return different[1];
} else if (mode == Day) {
return different[0];
} else {
return different[3];
}
}
private static long[] calculateDifference(Date startDate, Date endDate) {
return calculateDifference(endDate.getTime() - startDate.getTime());
}
private static long[] calculateDifference(long differentMilliSeconds) {
long secondsInMilli = 1000;//1s==1000ms
long minutesInMilli = secondsInMilli * 60;
long hoursInMilli = minutesInMilli * 60;
long daysInMilli = hoursInMilli * 24;
long elapsedDays = differentMilliSeconds / daysInMilli;
differentMilliSeconds = differentMilliSeconds % daysInMilli;
long elapsedHours = differentMilliSeconds / hoursInMilli;
differentMilliSeconds = differentMilliSeconds % hoursInMilli;
long elapsedMinutes = differentMilliSeconds / minutesInMilli;
differentMilliSeconds = differentMilliSeconds % minutesInMilli;
long elapsedSeconds = differentMilliSeconds / secondsInMilli;
LogUtils.verbose(String.format(Locale.CHINA, "different: %d ms, %d days, %d hours, %d minutes, %d seconds",
differentMilliSeconds, elapsedDays, elapsedHours, elapsedMinutes, elapsedSeconds));
return new long[]{elapsedDays, elapsedHours, elapsedMinutes, elapsedSeconds};
}
/**
* 计算每月的天数
*/
public static int calculateDaysInMonth(int month) {
return calculateDaysInMonth(0, month);
}
/**
* 根据年份及月份计算每月的天数
*/
public static int calculateDaysInMonth(int year, int month) {
// 添加大小月月份并将其转换为list,方便之后的判断
String[] bigMonths = {"1", "3", "5", "7", "8", "10", "12"};
String[] littleMonths = {"4", "6", "9", "11"};
List<String> bigList = Arrays.asList(bigMonths);
List<String> littleList = Arrays.asList(littleMonths);
// 判断大小月及是否闰年,用来确定"日"的数据
if (bigList.contains(String.valueOf(month))) {
return 31;
} else if (littleList.contains(String.valueOf(month))) {
return 30;
} else {
if (year <= 0) {
return 29;
}
// 是否闰年
if ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0) {
return 29;
} else {
return 28;
}
}
}
/**
* 月日时分秒，0-9前补0
*/
@NonNull
public static String fillZero(int number) {
return number < 10 ? "0" + number : "" + number;
}
/**
* 截取掉前缀0以便转换为整数
*
* @see #fillZero(int)
*/
public static int trimZero(@NonNull String text) {
try {
if (text.startsWith("0")) {
text = text.substring(1);
}
return Integer.parseInt(text);
} catch (NumberFormatException e) {
LogUtils.warn(e);
return 0;
}
}
/**
* 功能：判断日期是否和当前date对象在同一天。
* 参见：http://www.cnblogs.com/myzhijie/p/3330970.html
*
* @param date 比较的日期
* @return boolean 如果在返回true，否则返回false。
*/
public static boolean isSameDay(Date date) {
if (date == null) {
throw new IllegalArgumentException("date is null");
}
Calendar nowCalendar = Calendar.getInstance();
Calendar newCalendar = Calendar.getInstance();
newCalendar.setTime(date);
return (nowCalendar.get(Calendar.ERA) == newCalendar.get(Calendar.ERA) &&
nowCalendar.get(Calendar.YEAR) == newCalendar.get(Calendar.YEAR) &&
nowCalendar.get(Calendar.DAY_OF_YEAR) == newCalendar.get(Calendar.DAY_OF_YEAR));
}
/**
* 将yyyy-MM-dd HH:mm:ss字符串转换成日期<br/>
*
* @param dateStr 时间字符串
* @param dataFormat 当前时间字符串的格式。
* @return Date 日期 ,转换异常时返回null。
*/
public static Date parseDate(String dateStr, String dataFormat) {
try {
SimpleDateFormat dateFormat = new SimpleDateFormat(dataFormat, Locale.PRC);
Date date = dateFormat.parse(dateStr);
return new Date(date.getTime());
} catch (ParseException e) {
LogUtils.warn(e);
return null;
}
}
/**
* 将yyyy-MM-dd HH:mm:ss字符串转换成日期<br/>
*
* @param dateStr yyyy-MM-dd HH:mm:ss字符串
* @return Date 日期 ,转换异常时返回null。
*/
public static Date parseDate(String dateStr) {
return parseDate(dateStr, "yyyy-MM-dd HH:mm:ss");
}
/**
* 将指定的日期转换为一定格式的字符串
*/
public static String formatDate(Date date, String format) {
SimpleDateFormat sdf = new SimpleDateFormat(format, Locale.PRC);
return sdf.format(date);
}
/**
* 将当前日期转换为一定格式的字符串
*/
public static String formatDate(String format) {
return formatDate(Calendar.getInstance(Locale.CHINA).getTime(), format);
}
}