TimeUtil.java

package com.partynetwork.dataprovider.util;

import android.annotation.SuppressLint;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

import com.partynetwork.iparty.imessage.OpenfireConstant;

/**
 * 时间工具类
 * 
 * @author way
 * 
 */
@SuppressLint("SimpleDateFormat")
public class TimeUtil {

	private static final String FORMAT = "yyyy-MM-dd HH:mm:ss";

	public static String converTime(long time) {
		long currentSeconds = System.currentTimeMillis() / 1000;
		long timeGap = currentSeconds - time / 1000;// 与现在时间相差秒数
		String timeStr = null;
		if (timeGap > 3 * 24 * 60 * 60) {
			timeStr = getDayTime(time) + " " + getMinTime(time);
		} else if (timeGap > 24 * 2 * 60 * 60) {// 2天以上就返回标准时间
			timeStr = "前天 " + getMinTime(time);
		} else if (timeGap > 24 * 60 * 60) {// 1天-2天
			timeStr = timeGap / (24 * 60 * 60) + "昨天 " + getMinTime(time);
		} else if (timeGap > 60 * 60) {// 1小时-24小时
			timeStr = timeGap / (60 * 60) + "今天 " + getMinTime(time);
		} else if (timeGap > 60) {// 1分钟-59分钟
			timeStr = timeGap / 60 + "今天 " + getMinTime(time);
		} else {// 1秒钟-59秒钟
			timeStr = "今天 " + getMinTime(time);
		}
		return timeStr;
	}

	public static String getChatTime(long time) {
		return getMinTime(time);
	}

	public static String getPrefix(long time) {
		long currentSeconds = System.currentTimeMillis();
		long timeGap = currentSeconds - time;// 与现在时间差
		String timeStr = null;
		L.i(" " + (timeGap - (60 * 60 * 1000)));
		if (timeGap > 24 * 3 * 60 * 60 * 1000) {
			timeStr = getDayTime(time) + " " + getMinTime(time);
		} else if (timeGap > 24 * 2 * 60 * 60 * 1000) {
			timeStr = "前天 " + getMinTime(time);
		} else if (timeGap > 24 * 60 * 60 * 1000) {
			timeStr = "昨天 " + getMinTime(time);
		} else {
			timeStr = "今天 " + getMinTime(time);
		}
		return timeStr;
	}

	public static String getDayTime(long time) {
		SimpleDateFormat format = new SimpleDateFormat("yy-MM-dd");
		return format.format(new Date(time));
	}

	public static String getMinTime(long time) {
		SimpleDateFormat format = new SimpleDateFormat("yy-MM-dd HH:mm");
		return format.format(new Date(time));
	}

	public static Date str2Date(String str, String format) {
		if (str == null || str.length() == 0) {
			return null;
		}
		if (format == null || format.length() == 0) {
			format = FORMAT;
		}
		Date date = null;
		try {
			SimpleDateFormat sdf = new SimpleDateFormat(format);
			date = sdf.parse(str);

		} catch (Exception e) {
			e.printStackTrace();
		}
		return date;
	}

	public static String date2Str(Calendar c) {// yyyy-MM-dd HH:mm:ss
		return date2Str(c, null);
	}

	public static String date2Str(Calendar c, String format) {
		if (c == null) {
			return null;
		}
		return date2Str(c.getTime(), format);
	}

	public static String date2Str(Date d) {// yyyy-MM-dd HH:mm:ss
		return date2Str(d, null);
	}

	public static String date2Str(Date d, String format) {// yyyy-MM-dd HH:mm:ss
		if (d == null) {
			return null;
		}
		if (format == null || format.length() == 0) {
			format = FORMAT;
		}
		SimpleDateFormat sdf = new SimpleDateFormat(format);
		String s = sdf.format(d);
		return s;
	}

	public static long between(String timeStr1, String timeStr2) {
		SimpleDateFormat df = new SimpleDateFormat(OpenfireConstant.MS_FORMART);
		Date begin;
		try {
			begin = df.parse(timeStr1);
			Date end = df.parse(timeStr2);
			long between = (end.getTime() - begin.getTime()) / 1000;// 除以1000是为了转换成秒
			return between;
		} catch (ParseException e) {
			// TODO 自动生成的 catch 块
			e.printStackTrace();
		}
		return 0;
	}

	public static String getCurDateStr() {
		Calendar c = Calendar.getInstance();
		c.setTime(new Date());
		return c.get(Calendar.YEAR) + "-" + (c.get(Calendar.MONTH) + 1) + "-"
				+ c.get(Calendar.DAY_OF_MONTH) + " "
				+ c.get(Calendar.HOUR_OF_DAY) + ":" + c.get(Calendar.MINUTE)
				+ ":" + c.get(Calendar.SECOND);
	}

	/**
	 * 以友好的方式显示时间
	 * 
	 * @param sdate
	 * @return
	 */
	public static String friendly_time(String sdate) {
		Date time = str2Date(sdate, OpenfireConstant.MS_FORMART);
		if (time == null) {
			return "Unknown";
		}
		String ftime = "";
		Calendar cal = Calendar.getInstance();

		// 判断是否是同一天
		String curDate = dateFormater2.get().format(cal.getTime());
		String paramDate = dateFormater2.get().format(time);
		if (curDate.equals(paramDate)) {
			int hour = (int) ((cal.getTimeInMillis() - time.getTime()) / 3600000);
			if (hour == 0)
				ftime = Math.max(
						(cal.getTimeInMillis() - time.getTime()) / 60000, 1)
						+ "分钟前";
			else
				ftime = hour + "小时前";
			return ftime;
		}

		long lt = time.getTime() / 86400000;
		long ct = cal.getTimeInMillis() / 86400000;
		int days = (int) (ct - lt);
		if (days == 0) {
			int hour = (int) ((cal.getTimeInMillis() - time.getTime()) / 3600000);
			if (hour == 0)
				ftime = Math.max(
						(cal.getTimeInMillis() - time.getTime()) / 60000, 1)
						+ "分钟前";
			else
				ftime = hour + "小时前";
		} else if (days == 1) {
			ftime = "昨天";
		} else if (days == 2) {
			ftime = "前天";
		} else if (days > 2 && days <= 10) {
			ftime = days + "天前";
		} else if (days > 10) {
			ftime = dateFormater2.get().format(time);
		}
		return ftime;
	}

	private final static ThreadLocal<SimpleDateFormat> dateFormater = new ThreadLocal<SimpleDateFormat>() {
		@Override
		protected SimpleDateFormat initialValue() {
			return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
		}
	};

	private final static ThreadLocal<SimpleDateFormat> dateFormater2 = new ThreadLocal<SimpleDateFormat>() {
		@Override
		protected SimpleDateFormat initialValue() {
			return new SimpleDateFormat("yyyy-MM-dd");
		}
	};
}