DateTimeAndroidUtil-工具类 是关于时间日前相关的公用方法;
package liudeli.mynetwork01.utils;
import android.util.Log;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;
/**
* @Author Liudeli
* @Describe:时间相关工具类
*/
public class DateTimeAndroidUtil {
private DateTimeAndroidUtil(){}
/**
* 枚举日期格式
*/
public enum DatePattern{
/**
* 格式:"yyyy-MM-dd HH:mm:ss"
*/
ALL_TIME{public String getValue(){return "yyyy-MM-dd HH:mm:ss";}},
/**
* 格式:"yyyy-MM"
*/
ONLY_MONTH{public String getValue(){return "yyyy-MM";}},
/**
* 格式:"yyyy-MM-dd"
*/
ONLY_DAY{public String getValue(){return "yyyy-MM-dd";}},
/**
* 格式:"yyyy-MM-dd HH"
*/
ONLY_HOUR{public String getValue(){return "yyyy-MM-dd HH";}},
/**
* 格式:"yyyy-MM-dd HH:mm"
*/
ONLY_MINUTE{public String getValue(){return "yyyy-MM-dd HH:mm";}},
/**
* 格式:"MM-dd"
*/
ONLY_MONTH_DAY{public String getValue(){return "MM-dd";}},
/**
* 格式:"MM-dd HH:mm"
*/
ONLY_MONTH_SEC{public String getValue(){return "MM-dd HH:mm";}},
/**
* 格式:"HH:mm:ss"
*/
ONLY_TIME{public String getValue(){return "HH:mm:ss";}},
/**
* 格式:"HH:mm"
*/
ONLY_HOUR_MINUTE{public String getValue(){return "HH:mm";}};
public abstract String getValue();
}
/**
* 获取当前时间
* @return 返回当前时间,格式2017-05-04 10:54:21
*/
public static String getNowDate(DatePattern pattern){
String dateString = null;
Calendar calendar = Calendar.getInstance();
Date dateNow = calendar.getTime();
SimpleDateFormat sdf = new SimpleDateFormat(pattern.getValue(),Locale.CHINA);
dateString = sdf.format(dateNow);
return dateString;
}
/**
* 将一个日期字符串转换成Data对象
* @param dateString 日期字符串
* @param pattern 转换格式
* @return 返回转换后的日期对象
*/
public static Date stringToDate(String dateString, DatePattern pattern){
Date date = null;
SimpleDateFormat sdf = new SimpleDateFormat(pattern.getValue(),Locale.CHINA);
try {
date = sdf.parse(dateString);
} catch (ParseException e) {
e.printStackTrace();
}
return date;
}
/**
* 将date转换成字符串
* @param date 日期
* @param pattern 日期的目标格式
* @return
*/
public static String dateToString(Date date, DatePattern pattern){
String string = "";
SimpleDateFormat sdf = new SimpleDateFormat(pattern.getValue(), Locale.CHINA);
string = sdf.format(date);
return string;
}
/**
* 获取指定日期周几
* @param date 指定日期
* @return
* 返回值为: "周日", "周一", "周二", "周三", "周四", "周五", "周六"
*/
public static String getWeekOfDate(Date date){
String[] weekDays = { "周日", "周一", "周二", "周三", "周四", "周五", "周六" };
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
int week = calendar.get(Calendar.DAY_OF_WEEK) - 1;
if (week < 0)
week = 0;
return weekDays[week];
}
/**
* 获取指定日期对应周几的序列
* @param date 指定日期
* @return 周一:1 周二:2 周三:3 周四:4 周五:5 周六:6 周日:7
*/
public static int getIndexWeekOfDate(Date date){
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
int index = calendar.get(Calendar.DAY_OF_WEEK);
if(index == 1){
return 7;
}else{
return --index;
}
}
/**
* 返回当前月份
* @return
*/
public static int getNowMonth(){
Calendar calendar = Calendar.getInstance();
return calendar.get(Calendar.MONTH) + 1;
}
/**
* 获取当前月号
* @return
*/
public static int getNowDay(){
Calendar calendar = Calendar.getInstance();
return calendar.get(Calendar.DATE);
}
/**
* 获取当前年份
* @return
*/
public static int getNowYear(){
Calendar calendar = Calendar.getInstance();
return calendar.get(Calendar.YEAR);
}
/**
* 获取本月份的天数
* @return
*/
public static int getNowDaysOfMonth(){
Calendar calendar = Calendar.getInstance();
return daysOfMonth(calendar.get(Calendar.YEAR),calendar.get(Calendar.DATE) + 1);
}
/**
* 获取指定月份的天数
* @param year 年份
* @param month 月份
* @return 对应天数
*/
public static int daysOfMonth(int year,int month){
switch(month){
case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
case 12:
return 31;
case 4:
case 6:
case 9:
case 11:
return 30;
case 2:
if((year % 4 ==0 && year % 100 == 0) || year % 400 != 0){
return 29;
}else{
return 28;
}
default:
return -1;
}
}
/**
* 获取当前时间
* @return
*/
public static String getNowTime(){
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date date = new Date(System.currentTimeMillis());
return simpleDateFormat.format(date);
}
/**
* 获取当前时间
* @return
*/
public static String getThisTiem() {
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy年MM月dd日 HH:mm:ss");// HH:mm:ss
// 获取当前时间
Date date = new Date(System.currentTimeMillis());
return simpleDateFormat.format(date);
}
/**
* 获取时间戳
*
* @return 获取时间戳
*/
public static String getTimeString() {
SimpleDateFormat df = new SimpleDateFormat("yyyy年MM月dd日 HH:mm:ss");
Calendar calendar = Calendar.getInstance();
return df.format(calendar.getTime());
}
/**
* 获取时间戳
*
* @return 获取时间戳
*/
public static String getTimeString2() {
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Calendar calendar = Calendar.getInstance();
return df.format(calendar.getTime());
}
/**
* 时间转换为时间戳
* @param time:需要转换的时间
* @return
*/
public static String dateToStamp(String time) {
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date date = null;
try {
date = simpleDateFormat.parse(time);
} catch (ParseException e) {
e.printStackTrace();
}
long ts = date.getTime();
return String.valueOf(ts);
}
/**
* 时间戳转换为字符串
* @param time:时间戳
* @return
*/
public static String times(String time) {
SimpleDateFormat sdr = new SimpleDateFormat("yyyy年MM月dd日 HH时mm分");
@SuppressWarnings("unused")
long lcc = Long.valueOf(time);
int i = Integer.parseInt(time);
String times = sdr.format(new Date(i * 1000L));
return times;
}
/**
*获取距现在某一小时的时刻
* @param hour hour=-1为上一个小时,hour=1为下一个小时
* @return
*/
public static String getLongTime(int hour){
Calendar c = Calendar.getInstance(); // 当时的日期和时间
int h; // 需要更改的小时
h = c.get(Calendar.HOUR_OF_DAY) - hour;
c.set(Calendar.HOUR_OF_DAY, h);
SimpleDateFormat df = new SimpleDateFormat("yyyy年MM月dd日 HH:mm:ss");
Log.v("time",df.format(c.getTime()));
return df.format(c.getTime());
}
/**
* 比较时间大小
* @param str1:要比较的时间
* @param str2:要比较的时间
* @return
*/
public static boolean isDateOneBigger(String str1, String str2) {
boolean isBigger = false;
SimpleDateFormat sdf = new SimpleDateFormat("yyyy年MM月dd日 HH:mm:ss");
Date dt1 = null;
Date dt2 = null;
try {
dt1 = sdf.parse(str1);
dt2 = sdf.parse(str2);
} catch (ParseException e) {
e.printStackTrace();
}
if (dt1.getTime() > dt2.getTime()) {
isBigger = true;
} else if (dt1.getTime() < dt2.getTime()) {
isBigger = false;
}
return isBigger;
}
/**
* 当地时间 ---> UTC时间
* @return
*/
public static String Local2UTC(){
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
sdf.setTimeZone(TimeZone.getTimeZone("gmt"));
String gmtTime = sdf.format(new Date());
return gmtTime;
}
/**
* UTC时间 ---> 当地时间
* @param utcTime UTC时间
* @return
*/
public static String utc2Local(String utcTime) {
SimpleDateFormat utcFormater = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//UTC时间格式
utcFormater.setTimeZone(TimeZone.getTimeZone("UTC"));
Date gpsUTCDate = null;
try {
gpsUTCDate = utcFormater.parse(utcTime);
} catch (ParseException e) {
e.printStackTrace();
}
SimpleDateFormat localFormater = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");//当地时间格式
localFormater.setTimeZone(TimeZone.getDefault());
String localTime = localFormater.format(gpsUTCDate.getTime());
return localTime;
}
}