String2TimeUtil.java

package com.socks.jiandan.utils;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.TimeZone;

/**
 * 用于将String转化为时间
 * Created by zhaokaiqiang on 15/4/9.
 */
public class String2TimeUtil {

	/**
	 * 转换日期格式到用户体验好的时间格式
	 * @param time 2015-04-11 12:45:06
	 * @return
	 */
	public static String dateString2GoodExperienceFormat(String time) {
		if (isNullString(time)) {
			return "";
		} else {
			SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
			simpleDateFormat.setTimeZone(TimeZone.getTimeZone("GMT+08"));
			try {
				String timeString;
				Date parse = simpleDateFormat.parse(time);
				long distanceTime = new Date().getTime() - parse.getTime();
				if (distanceTime < 0L) {
					timeString = "0 mins ago";
				} else {
					long n2 = distanceTime / 60000L;
					new SimpleDateFormat("HH:mm");
					SimpleDateFormat simpleDateFormat2 = new SimpleDateFormat("MM-dd");
					if (n2 < 60L) {
						timeString = String.valueOf(n2) + " mins ago";
					} else if (n2 < 720L) {
						timeString = String.valueOf(n2 / 60L) + " hours ago";
					} else {
						timeString = simpleDateFormat2.format(parse);
					}
				}
				return timeString;
			} catch (Exception ex) {
				ex.printStackTrace();
				return "";
			}
		}
	}

	public static boolean isNullString(String s) {
		return s == null || s.equals("") || s.equals("null");
	}


}