WORST CODE OF ALL MY LIFE ugliest idi android parking

WORST CODE OF ALL MY LIFE .class

  buttonTwoDatesPayments.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v)
            {
                Calendar c = Calendar.getInstance();
                int mYear = c.get(Calendar.YEAR);
                int mMonth = c.get(Calendar.MONTH);
                int mDay = c.get(Calendar.DAY_OF_MONTH);

                DatePickerDialog datePicker = new DatePickerDialog( MainActivity.act,
                    new DatePickerDialog.OnDateSetListener()
                    {
                        public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth)
                        {
                            if(!view.isShown()) return;

                            Calendar cal = Calendar.getInstance();
                            cal.setTime(new Date(Calendar.getInstance().getTimeInMillis()));
                            cal.set(Calendar.YEAR, year); cal.set(Calendar.MONTH, monthOfYear);
                            cal.set(Calendar.DAY_OF_MONTH, dayOfMonth); cal.set(Calendar.HOUR_OF_DAY, 0);
                            cal.set(Calendar.MINUTE, 0); cal.set(Calendar.SECOND, 0);  cal.set(Calendar.MILLISECOND, 1);
                            Date pickedTime = cal.getTime();

                            EventsListActivityFragment.beginTime = pickedTime.getTime();
                            TimePickerDialog timePicker = new TimePickerDialog(MainActivity.act,
                                    new TimePickerDialog.OnTimeSetListener() {
                                        public void onTimeSet(TimePicker view, int hourOfDay, int minute)
                                        {
                                            if(!view.isShown()) return;

                                            EventsListActivityFragment.beginTime += (hourOfDay * 3600 + minute * 60) * 1000;

                                            Calendar c = Calendar.getInstance();
                                            c.setTime(new Date(EventsListActivityFragment.beginTime));

                                            int beginYear  = c.get(Calendar.YEAR);
                                            int beginMonth = c.get(Calendar.MONTH);
                                            int beginDay   = c.get(Calendar.DAY_OF_MONTH);
                                            DatePickerDialog datePicker = new DatePickerDialog( MainActivity.act,
                                                    new DatePickerDialog.OnDateSetListener() {
                                                        public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth)
                                                        {
                                                            if(!view.isShown()) return;

                                                            Calendar cal = Calendar.getInstance();
                                                            cal.setTime(new Date(Calendar.getInstance().getTimeInMillis()));
                                                            cal.set(Calendar.YEAR, year); cal.set(Calendar.MONTH, monthOfYear);
                                                            cal.set(Calendar.DAY_OF_MONTH, dayOfMonth); cal.set(Calendar.HOUR_OF_DAY, 0);
                                                            cal.set(Calendar.MINUTE, 0); cal.set(Calendar.SECOND, 0);  cal.set(Calendar.MILLISECOND, 1);
                                                            Date pickedTime = cal.getTime();

                                                            EventsListActivityFragment.endTime = pickedTime.getTime();
                                                            //To check if its at least one day before(or even earlier) than beginTime
                                                            EventsListActivityFragment.endTime += 24 * 3600 * 1000;
                                                            if(checkDatesIntegrity())
                                                            {
                                                                EventsListActivityFragment.endTime = pickedTime.getTime();

                                                                Calendar beginCal = Calendar.getInstance();
                                                                beginCal.setTime(new Date(EventsListActivityFragment.beginTime));
                                                                int beginHour = beginCal.get(Calendar.HOUR_OF_DAY);
                                                                int beginMin = beginCal.get(Calendar.MINUTE);
                                                                TimePickerDialog timePicker = new TimePickerDialog( MainActivity.act,
                                                                        new TimePickerDialog.OnTimeSetListener() {
                                                                            public void onTimeSet(TimePicker view, int hourOfDay, int minute)
                                                                            {
                                                                                if(!view.isShown()) return;
                                                                                EventsListActivityFragment.endTime += (hourOfDay * 3600 + minute * 60) * 1000;
                                                                                if(checkDatesIntegrity())
                                                                                {
                                                                                    Intent intent = new Intent(MainActivity.act, EventsListActivity.class);
                                                                                    startActivity(intent);
                                                                                }
                                                                            }
                                                                        },
                                                                        beginHour, beginMin, true);
                                                                timePicker.setTitle("Escull la hora d'esdeveniments final:");
                                                                timePicker.show();
                                                            }
                                                        }
                                                    },
                                                    beginYear, beginMonth, beginDay);
                                            datePicker.setTitle("Escull el dia d'esdeveniments final:");
                                            datePicker.show();
                                        }
                                    },
                                    0, 0, true);
                            timePicker.setTitle("Escull la hora d'esdeveniments inicial:");
                            timePicker.show();
                        }
                    },
                                                                    mYear, mMonth, mDay);
                datePicker.setTitle("Escull el dia d'esdeveniments inicial:");
                datePicker.show(); //Show datePicker, when finished, see onDateSet (bottom of code)
            }
        });