Android-zhi事件工具类（几天，几小时，几分钟前）

我们在写应用的时候经常会用到这个，应（几天，几小时，几分钟前）来代替我们内容发布的时间，看起来会很高大上。下面直接上代码，也是拿来就可以用的哦。

package cn.guyu.util;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

public class RelativeDateFormat {

private static final long ONE_MINUTE = 60000L;
private static final long ONE_HOUR = 3600000L;
private static final long ONE_DAY = 86400000L;
private static final long ONE_WEEK = 604800000L;

private static final String ONE_SECOND_AGO = "秒前";
private static final String ONE_MINUTE_AGO = "分钟前";
private static final String ONE_HOUR_AGO = "小时前";
private static final String ONE_DAY_AGO = "天前";
private static final String ONE_MONTH_AGO = "月前";
private static final String ONE_YEAR_AGO = "年前";

/* public static void main(String[] args) throws ParseException {
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:m:s");
Date date = format.parse("2015-10-1 18:00:33");
System.out.println(format(date)+"....");
}
*/
public static String format(Date date) {
long delta = new Date().getTime() - date.getTime();
if (delta < 1L * ONE_MINUTE) {
long seconds = toSeconds(delta);
return (seconds <= 0 ? 1 : seconds) + ONE_SECOND_AGO;
}
if (delta < 45L * ONE_MINUTE) {
long minutes = toMinutes(delta);
return (minutes <= 0 ? 1 : minutes) + ONE_MINUTE_AGO;
}
if (delta < 24L * ONE_HOUR) {
long hours = toHours(delta);
return (hours <= 0 ? 1 : hours) + ONE_HOUR_AGO;
}
if (delta < 48L * ONE_HOUR) {
return "昨天";

}
if (delta < 30L * ONE_DAY) {
long days = toDays(delta);
return (days <= 0 ? 1 : days) + ONE_DAY_AGO;
}
if (delta < 12L * 4L * ONE_WEEK) {
long months = toMonths(delta);
return (months <= 0 ? 1 : months) + ONE_MONTH_AGO;
} else {
long years = toYears(delta);
return (years <= 0 ? 1 : years) + ONE_YEAR_AGO;
}
}

private static long toSeconds(long date) {
return date / 1000L;
}

private static long toMinutes(long date) {
return toSeconds(date) / 60L;
}

private static long toHours(long date) {
return toMinutes(date) / 60L;
}

private static long toDays(long date) {
return toHours(date) / 24L;
}

private static long toMonths(long date) {
return toDays(date) / 30L;
}

private static long toYears(long date) {
return toMonths(date) / 365L;
}

}将Date型的数据传入进去，就可以得到我们想要的形式的时间啦