public static long get_time_difference(String curtimeStr,String endtimeStr){
SimpleDateFormat df =new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
long timeMillis = System.currentTimeMillis();
if(null==curtimeStr){
curtimeStr=stampToDate(timeMillis);
}
if(null==endtimeStr){
endtimeStr=stampToDate(timeMillis);
}
Log.e("tag timeMillis =",""+timeMillis);
//将时间戳转为日期格式
Log.e("tag curTime =",""+curtimeStr);
Log.e("tag endTime =",""+endtimeStr);
Date curDate =null;
Date endDate=null;
try {
curDate = df.parse(curtimeStr);
endDate = df.parse(endtimeStr);
}catch (ParseException e) {
e.printStackTrace();
}
long diff = endDate.getTime() - curDate.getTime();
Log.i("tag","时间差="+diff);
//以天数为单位取整
Long day = diff / (1000 *60 *60 *24);
//以小时为单位取整
Long hour=(diff/(60*60*1000)-day*24);
//以分钟为单位取整
Long min=((diff/(60*1000))-day*24*60-hour*60);
//以秒为单位
Long second=(diff/1000-day*24*60*60-hour*60*60-min*60);
Log.e("tag","day =" +day);
Log.e("tag","hour =" +hour);
Log.e("tag","min =" +min);
Log.e("tag","second =" +second);
return diff;
}
/**
* 将时间戳转换为时间
*/
public static String stampToDate(long timeMillis){
SimpleDateFormat simpleDateFormat =new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date date =new Date(timeMillis);
return simpleDateFormat.format(date);
}
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