How to calculate number of days between two datepicker in android

Question

When user select date between from and to date. how to calculate number of night in 3rd Edittext in android? Following my code for datepicker

3 edittext box

1 From Date 2 To Date 3 Number of night = ?

 CheckInDate = (EditText) rootView.findViewById(R.id.CheckInDate);

        CheckOutDate = (EditText) rootView.findViewById(R.id.CheckOutDate);





        CheckInDate.setOnClickListener(new View.OnClickListener()

        {
            @Override
            public void onClick(View v) {


                if (v == CheckInDate) {

                    final Calendar c = Calendar.getInstance();
                    int mYear = c.get(Calendar.YEAR);
                    int mMonth = c.get(Calendar.MONTH);
                    int mDay = c.get(Calendar.DAY_OF_MONTH);
                    c.set(Calendar.DAY_OF_MONTH, mDay);


                    DatePickerDialog dpd = new DatePickerDialog(getActivity(),
                            new DatePickerDialog.OnDateSetListener() {

                                @Override
                                public void onDateSet(DatePicker view, int year,
                                                      int monthOfYear, int dayOfMonth) {
                                    Calendar cal = Calendar.getInstance();
                                    cal.set(Calendar.MONTH, monthOfYear);
                                    cal.set(Calendar.DAY_OF_MONTH, dayOfMonth);
                                    cal.set(Calendar.YEAR, year);
                                    if(cal.before(c)) {
                                        Toast.makeText(getActivity(), "Select valid date please.", Toast.LENGTH_LONG).show();
                                        return;
                                    }
                                    StringBuilder date = new StringBuilder();
                                    date.delete(0, date.length());
                                    date.append((dayOfMonth<10?"0":"")).append(dayOfMonth)
                                            .append("/").append((monthOfYear + 1) < 10 ? "0" : "")
                                            .append((monthOfYear+1)).append("/").append(year);
                                    CheckInDate.setText(date.toString());
                                }
                            }, mYear, mMonth, mDay);
                    dpd.getDatePicker().setMinDate(c.getTimeInMillis());
                    dpd.show();
                }

            }

        });

        CheckOutDate.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {


                if (v == CheckOutDate) {

                    final Calendar c = Calendar.getInstance();
                    int mYear = c.get(Calendar.YEAR);
                    int mMonth = c.get(Calendar.MONTH);
                    int mDay = c.get(Calendar.DAY_OF_MONTH);
                    c.set(Calendar.DAY_OF_MONTH, mDay);


                    DatePickerDialog dpd = new DatePickerDialog(getActivity(),
                            new DatePickerDialog.OnDateSetListener() {

                                @Override
                                public void onDateSet(DatePicker view, int year,
                                                      int monthOfYear, int dayOfMonth) {
                                    Calendar cal = Calendar.getInstance();
                                    cal.set(Calendar.MONTH, monthOfYear);
                                    cal.set(Calendar.DAY_OF_MONTH, dayOfMonth);
                                    cal.set(Calendar.YEAR, year);
                                    if(cal.before(c)) {
                                        Toast.makeText(getActivity(), "Select valid date please.", Toast.LENGTH_LONG).show();
                                        return;
                                    }
                                    StringBuilder date = new StringBuilder();
                                    date.delete(0, date.length());
                                    date.append((dayOfMonth<10?"0":"")).append(dayOfMonth)
                                            .append("/").append((monthOfYear + 1) < 10 ? "0" : "")
                                            .append((monthOfYear+1)).append("/").append(year);
                                    CheckOutDate.setText(date.toString());
                                }
                            }, mYear, mMonth, mDay);
                    dpd.getDatePicker().setMinDate(c.getTimeInMillis());
                    dpd.show();                }

            }

        });

You can use Joda Time: http://stackoverflow.com/questions/3802893/number-of-days-between-two-dates-in-joda-time — antonio, Jun 14 '16 at 10:42

Neo · Answer 1 · 2016-06-14T11:14:02.640

Try this -

Date checkInTime, checkOutTime;
 private void checkDiff() {
    long duration = checkOutTime.getTime() - checkInTime.getTime();

    long diffInSeconds = TimeUnit.MILLISECONDS.toSeconds(duration);
    long diffInMinutes = TimeUnit.MILLISECONDS.toMinutes(duration);
    long diffInHours = TimeUnit.MILLISECONDS.toHours(duration);
    //Now Code as per requirement
}


        CheckInDate = (EditText) rootView.findViewById(R.id.CheckInDate);
        CheckOutDate = (EditText) rootView.findViewById(R.id.CheckOutDate);

        CheckInDate.setOnClickListener(new View.OnClickListener()

        {
            @Override
            public void onClick(View v) {


                if (v == CheckInDate) {

                    final Calendar c = Calendar.getInstance();
                    int mYear = c.get(Calendar.YEAR);
                    int mMonth = c.get(Calendar.MONTH);
                    int mDay = c.get(Calendar.DAY_OF_MONTH);
                    c.set(Calendar.DAY_OF_MONTH, mDay);

                    DatePickerDialog dpd = new DatePickerDialog(getActivity(),
                            new DatePickerDialog.OnDateSetListener() {

                                @Override
                                public void onDateSet(DatePicker view, int year,
                                                      int monthOfYear, int dayOfMonth) {
                                    Calendar cal = Calendar.getInstance();
                                    cal.set(Calendar.MONTH, monthOfYear);
                                    cal.set(Calendar.DAY_OF_MONTH, dayOfMonth);
                                    cal.set(Calendar.YEAR, year);
                                    if (cal.before(c)) {
                                        Toast.makeText(getActivity(), "Select valid date please.", Toast.LENGTH_LONG).show();
                                        return;
                                    }
                                    checkInTime = cal.getTime();
                                    StringBuilder date = new StringBuilder();
                                    date.delete(0, date.length());
                                    date.append((dayOfMonth < 10 ? "0" : "")).append(dayOfMonth)
                                            .append("/").append((monthOfYear + 1) < 10 ? "0" : "")
                                            .append((monthOfYear + 1)).append("/").append(year);
                                    CheckInDate.setText(date.toString());
                                }
                            }, mYear, mMonth, mDay);
                    dpd.getDatePicker().setMinDate(c.getTimeInMillis());
                    dpd.show();
                }

            }

        });

        CheckOutDate.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {


                if (v == CheckOutDate) {

                    final Calendar c = Calendar.getInstance();
                    int mYear = c.get(Calendar.YEAR);
                    int mMonth = c.get(Calendar.MONTH);
                    int mDay = c.get(Calendar.DAY_OF_MONTH);
                    c.set(Calendar.DAY_OF_MONTH, mDay);
                    checkOutTime = c.getTime();

                    DatePickerDialog dpd = new DatePickerDialog(getActivity(),
                            new DatePickerDialog.OnDateSetListener() {

                                @Override
                                public void onDateSet(DatePicker view, int year,
                                                      int monthOfYear, int dayOfMonth) {
                                    Calendar cal = Calendar.getInstance();
                                    cal.set(Calendar.MONTH, monthOfYear);
                                    cal.set(Calendar.DAY_OF_MONTH, dayOfMonth);
                                    cal.set(Calendar.YEAR, year);
                                    if (cal.before(c)) {
                                        Toast.makeText(getActivity(), "Select valid date please.", Toast.LENGTH_LONG).show();
                                        return;
                                    }
                                    StringBuilder date = new StringBuilder();
                                    date.delete(0, date.length());
                                    date.append((dayOfMonth < 10 ? "0" : "")).append(dayOfMonth)
                                            .append("/").append((monthOfYear + 1) < 10 ? "0" : "")
                                            .append((monthOfYear + 1)).append("/").append(year);
                                    CheckOutDate.setText(date.toString());
                                    checkOutTime = cal.getTime();
                                    checkDiff();
                                }
                            }, mYear, mMonth, mDay);
                    dpd.getDatePicker().setMinDate(c.getTimeInMillis());
                    dpd.show();
                }

            }

        });
    }

In your case make two public refrecesh of Date (let say checkInDate and checkOutDate) in onDateSet get the date from calender and assign to respective reference. In onDateSet of second(i.e. checkout) you can calculate difference between both dates. — Neo, Jun 14 '16 at 10:45

NehaK · Answer 2 · 2016-06-14T11:38:54.393

Try this code to get totalNumber of days :

  Calendar cal1 = new GregorianCalendar();
     Calendar cal2 = new GregorianCalendar();

     SimpleDateFormat sdf = new SimpleDateFormat("ddMMyyyy");

     Date date = sdf.parse("your first date");
     cal1.setTime(date)
     date = sdf.parse("your second date");
     cal2.setTime(date);

 System.out.println("Days= "+daysBetween(cal1.getTime(),cal2.getTime()));

Check your number of days code here :

        CheckOutDate.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {


                if (v == CheckOutDate) {

                    final Calendar c = Calendar.getInstance();
                    int mYear = c.get(Calendar.YEAR);
                    int mMonth = c.get(Calendar.MONTH);
                    int mDay = c.get(Calendar.DAY_OF_MONTH);
                    c.set(Calendar.DAY_OF_MONTH, mDay);


                    DatePickerDialog dpd = new DatePickerDialog(getActivity(),
                            new DatePickerDialog.OnDateSetListener() {

                                @Override
                                public void onDateSet(DatePicker view, int year,
                                                      int monthOfYear, int dayOfMonth) {
                                    Calendar cal = Calendar.getInstance();
                                    cal.set(Calendar.MONTH, monthOfYear);
                                    cal.set(Calendar.DAY_OF_MONTH, dayOfMonth);
                                    cal.set(Calendar.YEAR, year);
                                    if(cal.before(c)) {
                                        Toast.makeText(getActivity(), "Select valid date please.", Toast.LENGTH_LONG).show();
                                        return;
                                    }
                                    StringBuilder date = new StringBuilder();
                                    date.delete(0, date.length());
                                    date.append((dayOfMonth<10?"0":"")).append(dayOfMonth)
                                            .append("/").append((monthOfYear + 1) < 10 ? "0" : "")
                                            .append((monthOfYear+1)).append("/").append(year);
                                    CheckOutDate.setText(date.toString());




                                    /************* Check you days HERE ***************/
                                 try {

                                    Calendar calCheckIn =  new GregorianCalendar();
\                                    Calendar calCheckOut = new GregorianCalendar();

                                     SimpleDateFormat sdf = new SimpleDateFormat("dd-MM-yyyy");


                                    Date dateCheckIn = sdf.parse(CheckInDate.getText().toString());
                                    calCheckIn.setTime(dateCheckIn);
                                    Date dateCheckOut = sdf.parse(CheckOutDate.getText().toString());
                                    calCheckOut.setTime(dateCheckOut);

                                    System.out.println("Days= "+daysBetween(dateCheckIn.getTime(),dateCheckOut.getTime()));

                                     EditText Night = (EditText) rootView.findViewById(R.id.Noofnights); 
                                       Night.setText(daysBetween(dateCheckIn.getTime(),dateCheckOut.getTime()) + "");
                                    } catch (Exception e) {
                                    e.printStackTrace();
                                  }
/***************************************/


                                }
                            }, mYear, mMonth, mDay);
                    dpd.getDatePicker().setMinDate(c.getTimeInMillis());
                    dpd.show();                }

            }

        });

Put this Method anywhere in class :

 public int daysBetween(Date d1, Date d2){
             return (int)( (d2.getTime() - d1.getTime()) / (1000 * 60 * 60 * 24));
     }

In which edittext you want to set number of night? put that code here — NehaK, Jun 14 '16 at 11:16
when i select CheckInDate 14-06-2016 and CheckOutDate 16-06-2016 Number Of Night = 2 :) I want this — ATKT, Jun 14 '16 at 11:21
Using this code when you will select checkOutDate then it will calculate days b/w checkIn & checkOut — NehaK, Jun 14 '16 at 11:34
When i put ur code :- method Created >> private String daysBetween(long time, long time1) :( — ATKT, Jun 15 '16 at 05:35
this is not my method private String daysBetween(long time, long time1) — NehaK, Jun 15 '16 at 05:48
but when i put ur code try and catch that time I get cannot resolve method daysBetween :( — ATKT, Jun 15 '16 at 05:53
do you know java language, If not then how can I help you.. :) — NehaK, Jun 15 '16 at 06:33

How to calculate number of days between two datepicker in android

2 Answers2