android - 如何在 DatePickerDialog Android 中禁用今天日期之前的日期

Question

我想在 DatePickerDialog 中禁用今天日期之前的日期。我是 android 的新手，请建议我该怎么做。这是我为 DatePickerDialog 编写的代码。我正在扩展 Fragment 类。请帮助我:)

public class OneFragment extends Fragment {

 @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        final View rootView = inflater.inflate(R.layout.fragment_one, container, false);


        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();
                    year = c.get(Calendar.YEAR);
                    month = c.get(Calendar.MONTH);
                    day = c.get(Calendar.DAY_OF_MONTH);


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

                                @Override
                                public void onDateSet(DatePicker view, int selectedYear,
                                                      int selectedMonth, int selectedDay) {

                                    year = selectedYear;
                                    month = selectedMonth +1;
                                    day = selectedDay;


                                    // set selected date into textview
                                    CheckInDate.setText(new StringBuilder().append(day)
                                            .append("/").append(month).append("/").append(year)
                                            .append(" "));



                                }
                            }, year, month, day);
                    datePickerDialog.show();
                }
            }
        });

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


                if (v == CheckOutDate) {

                    final Calendar c = Calendar.getInstance();
                    year = c.get(Calendar.YEAR);
                    month = c.get(Calendar.MONTH);
                    day = c.get(Calendar.DAY_OF_MONTH);


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

                                @Override
                                public void onDateSet(DatePicker view, int year,
                                                      int monthOfYear, int dayOfMonth) {

                                    CheckOutDate.setText(dayOfMonth + "-" + (monthOfYear + 1) + "-" + year);

                                }
                            }, year, month, day);
                    datePickerDialog.show();
                }
            }
        });
        return rootView;
    }}

Answer 1

使用DatePicker的setMinDate函数

datePickerDialog.getDatePicker().setMinDate(c.getTimeInMillis());
datePickerDialog.show();

工作代码如下

        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); // add here +1 if you don't
                                              //want user to select current date also
        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("Select valid date please.");
                            // notify user about wrong date.
                            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);
                        //text.setText(date.toString());
                    }
                }, mYear, mMonth, mDay);
        dpd.getDatePicker().setMinDate(c.getTimeInMillis());
        dpd.show();

希望它能奏效。