仅在datePicker中选择日期

Question

  

是否可以允许datePicker仅显示日期并隐藏年份和   一个月？

我有两个活动，在活动A中，我有datePicker，它只显示月份和年份。在活动B中，我希望datePicker仅显示日期，但无法从互联网上找到任何解决方案。

活动A的ScreenShot

假设用户选择 2018年6月。然后在活动B 中，datePicker将显示2018年6月作为对话框标题，并且仅允许用户选择日期。

活动B

   month = getIntent().getStringExtra("month"); // Jun 2018

    date.setOnClickListener(new View.OnClickListener() {

                @Override
                public void onClick(View view) {
                    showDialog(DATE_DIALOG_ID);
                }
            });

     DatePickerDialog.OnDateSetListener mDateSetListner = new DatePickerDialog.OnDateSetListener() {

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

                mYear = year;
                mMonth = monthOfYear;
                mDay = dayOfMonth;
            }
        };

        @Override
        protected Dialog onCreateDialog(int id) {
            switch (id) {
                case DATE_DIALOG_ID:
                    DatePickerDialog datePickerDialog = this.customDatePicker();
                    return datePickerDialog;
            }
            return null;
        }

private DatePickerDialog customDatePicker() {
        DatePickerDialog dpd = new DatePickerDialog(this, mDateSetListner,
                mYear, mMonth, mDay);
        try {
            Field[] datePickerDialogFields = dpd.getClass().getDeclaredFields();
            for (Field datePickerDialogField : datePickerDialogFields) {
                if ((datePickerDialogField.getName().equals("mYearPicker"))||(datePickerDialogField.getName().equals("mMonthPicker"))) {
                    datePickerDialogField.setAccessible(true);
                    DatePicker datePicker = (DatePicker) datePickerDialogField
                            .get(dpd);
                    Field datePickerFields[] = datePickerDialogField.getType()
                            .getDeclaredFields();
                    for (Field datePickerField : datePickerFields) {
                        if ("mDayPicker".equals(datePickerField.getName())
                                || "mDaySpinner".equals(datePickerField
                                .getName())) {
                            datePickerField.setAccessible(true);
                            Object dayPicker = new Object();
                            dayPicker = datePickerField.get(datePicker);
                            ((View) dayPicker).setVisibility(View.GONE);
                        }
                    }
                }

            }
        } catch (Exception ex) {
        }
        return dpd;
    }

Answer 1

尝试以下代码

DatePickerDialog dpd = new DatePickerDialog(getActivity(), this, year, month, day);
        try {
            Field[] datePickerDialogFields = dpd.getClass().getDeclaredFields();
            for (Field datePickerDialogField : datePickerDialogFields) {
                if (datePickerDialogField.getName().equals("mDatePicker")) {

                    datePickerDialogField.setAccessible(true);
                    DatePicker datePicker = (DatePicker) datePickerDialogField
                            .get(dpd);
                    Field datePickerFields[] = datePickerDialogField.getType()
                            .getDeclaredFields();
                    for (Field datePickerField : datePickerFields) {
                        if ("mYearPicker".equals(datePickerField.getName())
                                || "mYearSpinner".equals(datePickerField
                                .getName()||"mMonthPicker".equals(datePickerField.getName())||"mMonthSpinner".equals(datePickerField.getName())) {
                            datePickerField.setAccessible(true);
                            Object dayPicker = new Object();
                            dayPicker = datePickerField.get(datePicker);
                            ((View) dayPicker).setVisibility(View.GONE);
                        }
                    }
                }
            }
        } catch (Exception ex) {
            ex.printStackTrace();
        }