Chcę otworzyć Kalendarz po kliknięciu Edytuj tekst. Następnie chcę ustawić datę, którą użytkownik wybierze z kalendarza w tekście edycji. Problem polega na tym, że dopiero po kliknięciu EditText po raz drugi kalendarz się otwiera. Pomóż mi rozwiązać problem (why calendar don't open for the first time).

Edytować tekst Kod XML

<EditText
            android:id="@+id/dateofBirth"
            android:layout_width="290dp"
            android:layout_height="wrap_content"
            android:layout_marginLeft="5dp"
            android:layout_marginTop="10dp"
            android:maxLines="1"
            android:hint="dd/mm/yyyy" />

Czynność Kod

public void informationPopUp() {
        final Dialog dialog= new Dialog(MainActivity.this,R.style.Dialog_Fullscreen);
        dialog.setContentView(R.layout.details_dialog); 
        dateofBirth = (EditText)dialog.findViewById(R.id.dateofBirth);

        dialog.show();
         myCalendar = Calendar.getInstance();

       final DatePickerDialog.OnDateSetListener date = new DatePickerDialog.OnDateSetListener() {

            @Override
            public void onDateSet(DatePicker view, int year, int monthOfYear,
                    int dayOfMonth) {
                // TODO Auto-generated method stub
                myCalendar.set(Calendar.YEAR, year);
                myCalendar.set(Calendar.MONTH, monthOfYear);
                myCalendar.set(Calendar.DAY_OF_MONTH, dayOfMonth);
                updateLabel();
            }


        };

        dateofBirth.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                showDialog(DATE_DIALOG_ID);
              }
        });

    }
     private void updateLabel() {
         String myFormat = "MM/dd/yy"; //In which you need put here
         SimpleDateFormat sdf = new SimpleDateFormat(myFormat, Locale.US);
         dateofBirth.setText(sdf.format(myCalendar.getTime()));
     }

     protected Dialog onCreateDialog(int id) {
            final Calendar now = Calendar.getInstance();

            switch (id) {
            case DATE_DIALOG_ID:
                // set date picker as current date
                DatePickerDialog _date =   new DatePickerDialog(this, date,myCalendar
                        .get(Calendar.YEAR), myCalendar.get(Calendar.MONTH),
                        myCalendar.get(Calendar.DAY_OF_MONTH)){
                    @Override

                    public void onDateChanged(DatePicker view, int year, int monthOfYear, int dayOfMonth){   

                        if (year > now.get(Calendar.YEAR))

                            view.updateDate(myCalendar
                                    .get(Calendar.YEAR), myCalendar
                                    .get(Calendar.MONTH), myCalendar.get(Calendar.DAY_OF_MONTH));

                        if (monthOfYear > now.get(Calendar.MONTH) && year == now.get(Calendar.YEAR))
                            view.updateDate(myCalendar
                                    .get(Calendar.YEAR), myCalendar
                                    .get(Calendar.MONTH), myCalendar.get(Calendar.DAY_OF_MONTH));

                        if (dayOfMonth > now.get(Calendar.DAY_OF_MONTH) && year == now.get(Calendar.YEAR) && 
                                monthOfYear == now.get(Calendar.MONTH))
                            view.updateDate(myCalendar
                                    .get(Calendar.YEAR), myCalendar
                                    .get(Calendar.MONTH), myCalendar.get(Calendar.DAY_OF_MONTH));
                            }
                };
                return _date;
            }
            return null;
        } 

Nie rozumiem, co zrobiłem źle. Zaproponuj rozwiązanie.