Android时间转换工具Time

转自：http://blog.csdn.net/syif88/article/details/53517613 import java.text.SimpleDateFormat;  import java.util.Calendar;  import java.util.Date;      /**  * 时间转换工具  */  public class TimeUtil {          private TimeUtil(){}        /**      * 时间转化为显示字符串      *      * @param timeStamp 单位为秒      */      public static String getTimeStr(long timeStamp){          if (timeStamp==0) return "";          Calendar inputTime = Calendar.getInstance();          inputTime.setTimeInMillis(timeStamp*1000);          Date currenTimeZone = inputTime.getTime();          Calendar calendar = Calendar.getInstance();          calendar.set(Calendar.HOUR_OF_DAY, 23);          calendar.set(Calendar.MINUTE, 59);          if (calendar.before(inputTime)){              //今天23:59在输入时间之前，解决一些时间误差，把当天时间显示到这里              SimpleDateFormat sdf = new SimpleDateFormat("yyyy" +"年"+"MM"+"月"+"dd"+"日");              return sdf.format(currenTimeZone);          }          calendar.set(Calendar.HOUR_OF_DAY, 0);          calendar.set(Calendar.MINUTE, 0);          calendar.set(Calendar.SECOND, 0);          calendar.set(Calendar.MILLISECOND, 0);          if (calendar.before(inputTime)){              SimpleDateFormat sdf = new SimpleDateFormat("HH:mm");              return sdf.format(currenTimeZone);          }          calendar.add(Calendar.DAY_OF_MONTH,-1);          if (calendar.before(inputTime)){              return "昨天";          }else{              calendar.add(Calendar.DAY_OF_MONTH, -5);              if (calendar.before(inputTime)){                  return getWeekDayStr(inputTime.get(Calendar.DAY_OF_WEEK));              }              else              {                  calendar.set(Calendar.DAY_OF_MONTH, 1);                  calendar.set(Calendar.MONTH, Calendar.JANUARY);                  int year = inputTime.get(Calendar.YEAR);                  int month = inputTime.get(Calendar.MONTH);                  int day = inputTime.get(Calendar.DAY_OF_MONTH);                  return year+"/"+month+"/"+day;              }              }        }        /**      * 时间转化为聊天界面显示字符串      *      * @param timeStamp 单位为秒      */      public static String getChatTimeStr(long timeStamp){          if (timeStamp==0) return "";          Calendar inputTime = Calendar.getInstance();          inputTime.setTimeInMillis(timeStamp*1000);          Date currenTimeZone = inputTime.getTime();          Calendar calendar = Calendar.getInstance();          if (calendar.before(inputTime)){              //当前时间在输入时间之前              SimpleDateFormat sdf = new SimpleDateFormat("yyyy" + "年"+"MM"+"月"+"dd"+"日");              return sdf.format(currenTimeZone);          }          calendar.set(Calendar.HOUR_OF_DAY, 0);          calendar.set(Calendar.MINUTE, 0);          calendar.set(Calendar.SECOND, 0);          calendar.set(Calendar.MILLISECOND, 0);          if (calendar.before(inputTime)){              SimpleDateFormat sdf = new SimpleDateFormat("h:mm");              return timeFormatStr(inputTime,sdf.format(currenTimeZone));          }          calendar.add(Calendar.DAY_OF_MONTH,-1);          if (calendar.before(inputTime)){              SimpleDateFormat sdf = new SimpleDateFormat("h:mm");              return "昨天"+" "+timeFormatStr(inputTime, sdf.format(currenTimeZone));          }else{              calendar.set(Calendar.DAY_OF_MONTH, 1);              calendar.set(Calendar.MONTH, Calendar.JANUARY);              if (calendar.before(inputTime)){                  SimpleDateFormat sdf = new SimpleDateFormat("M"+"月"+"d"+"日");                  String temp1 = sdf.format(currenTimeZone);                  SimpleDateFormat sdf1 = new SimpleDateFormat("h:mm");                  String temp2 = timeFormatStr(inputTime, sdf1.format(currenTimeZone));                  return temp1+temp2;              }else{                  SimpleDateFormat sdf = new SimpleDateFormat("yyyy"+"年"+"M"+"月"+"d"+"日");                  String temp1 = sdf.format(currenTimeZone);                  SimpleDateFormat sdf1 = new SimpleDateFormat("h:mm");                  String temp2 = timeFormatStr(inputTime, sdf1.format(currenTimeZone));                  return temp1+temp2;              }            }        }        /**      * 24小时制转化成12小时制      *      * @param strDay      */      public static String timeFormatStr(Calendar calendar,String strDay)      {          String tempStr = "";          int hour = calendar.get(Calendar.HOUR_OF_DAY);          if (hour > 11)          {              tempStr = "下午"+" " + strDay;          }          else          {              tempStr = "上午"+" " + strDay;          }          return tempStr;      }        /**      * 时间转化为星期      *      * @param indexOfWeek   星期的第几天      */      public static String getWeekDayStr(int indexOfWeek){          String weekDayStr = "";          switch (indexOfWeek)          {              case 1:                  weekDayStr = "星期日";                  break;              case 2:                  weekDayStr = "星期一";                  break;              case 3:                  weekDayStr = "星期二";                  break;              case 4:                  weekDayStr = "星期三";                  break;              case 5:                  weekDayStr = "星期四";                  break;              case 6:                  weekDayStr = "星期五";                  break;              case 7:                  weekDayStr = "星期六";                  break;          }          return weekDayStr;      }  }