convert String to date but i get today instead

Question

I want to convert a given String from JSON in format "YYYY-MM-DD HH:MM:SS" to a Date so I can convert it to a Calendar and finally get mills from that Specific date and to day. but I just get Today instead of given date

public static String getGameRemainedTime(String date){

        Log.i("TIME", date);

        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        Date convertedDate = new Date();
        try {
            convertedDate = dateFormat.parse(date);
        } catch (ParseException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }


        Log.i("TIME", convertedDate+"");

        Calendar game_date = Calendar.getInstance(); 
        game_date.setTime(convertedDate);
        Calendar today = Calendar.getInstance(); 


        long gamedate_stamp = game_date.getTimeInMillis();
        long today_stamp = today.getTimeInMillis();

        Log.i("TIME", today_stamp+"-"+gamedate_stamp);




        long diff = gamedate_stamp - today_stamp;

        long day = diff / (1000 * 24 * 60 * 60 );

        long hour =  (diff -(1000 * 24 * 60 * 60 )) / (1000  * 60 * 60 );

        long mins =  ((diff -(1000 * 24 * 60 * 60 )) / (1000  * 60 * 60 )) / (1000  * 60 );



        Log.i("TIME", day+"-"+hour+"-"+mins);


        return day+"-"+hour+"-"+mins;



    }

Answer 1

You need to subtract the today_date from your specified date that why you are getting wrong results.

try to change this:

 long diff = gamedate_stamp - today_stamp;

to:

 long diff = today_stamp- gamedate_stamp ;

edit:

public static String getGameRemainedTime(String date) throws java.text.ParseException{

    Log.i("TIME", date);

    SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    Date convertedDate = new Date();
    try {
        convertedDate = dateFormat.parse(date);
    } catch (ParseException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }


    Log.i("TIME", convertedDate+"");

    Calendar game_date = Calendar.getInstance(); 
    game_date.setTime(convertedDate);
    Calendar today = Calendar.getInstance(); 


    long gamedate_stamp = game_date.getTimeInMillis();
    long today_stamp = today.getTimeInMillis();

    Log.i("TIME", today_stamp+"-"+gamedate_stamp);




    long diff =  today_stamp - gamedate_stamp;


    long day = diff / (24 * 60 * 60 * 1000); 

    long hour =  diff / (60 * 60 * 1000);

    long mins =  diff / (60 * 1000);;



    Log.i("DAY: ", " " + day);
    Log.i("HOUR: ", " " + hour);
    Log.i("MINUTES", " " + mins);

    return day+"-"+hour+"-"+mins;

}

try this in your oncreate();

getGameRemainedTime("2014-5-16 10:34:22");

result:

06-14 10:37:11.891: I/DAY:(1270):  29
06-14 10:37:11.891: I/HOUR:(1270):  696
06-14 10:37:11.891: I/MINUTES(1270):  41762