2018年7月30日星期一18:19:48 GMT + 08：00不早于日期：2018年7月30日星期一18:19:48 GMT + 08：00

Question

public void startDateTapped(View view) {
    DatePickerDialog datePickerDialog = new DatePickerDialog(EditAppointmentActivity.this,
        new DatePickerDialog.OnDateSetListener() {
            @Override
            public void onDateSet(DatePicker view, final int year, final int monthOfYear, final int dayOfMonth) {
                if (view.isShown()) { //Validation method because for some reason onDateSet is called twice... so timepicker is called twice
                    Date appointmentStartDate = new Date();
                    try {
                        appointmentStartDate.setTime(appointmentDF.parse(appointment.startTime).getTime());
                    } catch (ParseException e) {
                        e.printStackTrace();
                    }

                    final Calendar c = Calendar.getInstance();
                    c.setTime(appointmentStartDate);

                    mYear = c.get(Calendar.YEAR);
                    mMonth = c.get(Calendar.MONTH);
                    mDay = c.get(Calendar.DAY_OF_MONTH);

                    mHour = c.get(Calendar.HOUR_OF_DAY);
                    mMinute = c.get(Calendar.MINUTE);

                    CustomTimePickerDialog timePickerDialog = new CustomTimePickerDialog(EditAppointmentActivity.this, TIME_PICKER_INTERVAL, new TimePickerDialog.OnTimeSetListener() {
                        @Override
                        public void onTimeSet(TimePicker view, int hourOfDay, int minute) {

                            SimpleDateFormat df = new SimpleDateFormat("d/M/yyyy H:m", Locale.US);
                            SimpleDateFormat targetDateFormat = new SimpleDateFormat("dd/MM/yyyy h:mma", Locale.US);
                            minute = getRoundedMinute(minute);
                            String unformattedTimeString = dayOfMonth + "/" + (monthOfYear + 1) + "/" + year + " " + hourOfDay + ":" + minute; //+1 because month starts from 0
                            try {
                                Date unformattedTime = df.parse(unformattedTimeString);

                                String formattedTimeString = targetDateFormat.format(unformattedTime);
                                startDateText.setText(formattedTimeString);
                            } catch (ParseException e) {
                                e.printStackTrace();
                            }
                        }
                    }, mHour, mMinute, false);
                    timePickerDialog.show();
                }
            }
        }, mYear, mMonth, mDay);
    try {
        datePickerDialog.getDatePicker().setMinDate(appointmentDF.parse(appointment.startTime).getTime());
    } catch (ParseException e) {
        e.printStackTrace();
    }
    datePickerDialog.show();
}  

然后给我一个错误：

  

引起者：java.lang.IllegalArgumentException：fromDate：7月30日星期一   18:19:48 GMT + 08：00 2018不早于日期：7月30日星期一18:19:48   GMT + 08：00 2018