Question

我在一个datepickers中使用两个start date一个用于end date，一个用于activity，每当我选择一个月时，它会显示错误的数字。我尝试将+1添加到月份值，但由于有两个datepickers，我们必须跳过start date之前的日期才能进行选择，因此无效。代码如下：

public static class DatePickerFragment extends DialogFragment implements
        DatePickerDialog.OnDateSetListener {
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        // Use the current date as the default date in the picker
        final Calendar c = Calendar.getInstance();
        int year = c.get(Calendar.YEAR);
        int month = c.get(Calendar.MONTH);
        int day = c.get(Calendar.DAY_OF_MONTH);
        DatePickerDialog datePickerDialog;
        datePickerDialog = new DatePickerDialog(getActivity(), this, year,
                month, day);
        return datePickerDialog;
    }

    public void onDateSet(DatePicker view, int year, int month, int day) {
        // Do something with the date chosen by the user

        cval_from.setText(day + "/" + month + "/" + year);
    }
}

public static class ToDatePickerFragment extends DialogFragment implements
        DatePickerDialog.OnDateSetListener {
    // Calendar startDateCalendar=Calendar.getInstance();
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        // Use the current date as the default date in the picker
        String getfromdate = cval_from.getText().toString().trim();
        String getfrom[] = getfromdate.split("/");
        int year, month, day;
        year = Integer.parseInt(getfrom[2]);
        month = Integer.parseInt(getfrom[1]);
        day = Integer.parseInt(getfrom[0]);
        final Calendar c = Calendar.getInstance();
        c.set(year, month, day + 1);
        DatePickerDialog datePickerDialog = new DatePickerDialog(getActivity(), this, year, month, day);
        datePickerDialog.getDatePicker().setMinDate(c.getTimeInMillis());
        return datePickerDialog;
    }

    public void onDateSet(DatePicker view, int year, int month, int day) {

        cval_to.setText(day + "/" + month + "/" + year);
    }

}

此处cval_from为start date而cval_to为end date，现在如果我在month+1 cval_from中添加cval_to日期的选择从下个月开始。例如，如果我为26/1/2018选择cval_from，则必须从cval_to开始选择27/1/2018。整个月都被跳过了。

有人可以帮忙吗？

Answer 1

根据developer.android.com月份范围0-11。

所以你需要将它递增1。

public void onDateSet(DatePicker view, int year, int month, int day) {
    int selectedMonth = month+1;
    cval_to.setText(day + "/" + selectedMonth + "/" + year);
}

Answer 2

当您使用最初要在DatePicker中设置的方法中的开始日期发送日期以及结束日期时，可以在不同的点击时使用两个日期选择器，并在Click

中调用此方法

void selectDate(int mDay ,int mMonth,int mYear) {

    DatePickerDialog datePickerDialog = new DatePickerDialog(this,R.style.mydatetheame,
            new DatePickerDialog.OnDateSetListener() {

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

                    tv_date.setText((monthOfYear + 1) + "/" + dayOfMonth + "/" + year);

                }
            }, mYear, mMonth, mDay);
    datePickerDialog.show();

}

当然，通过这种方法你将得到一个正确的月份。

DatePicker显示从0开始的月份值

2 个答案: