我如何在 Android 中限制日历中的未来日期

Question

这是我的日历选择器代码。

我想用 Comapre 服务器日期而不是系统日期修复 Max Calender

ShowDatePicker 我从图像按钮调用并打开日期日历

private void showDatePickerDialog(View v) {
        dateFragment = new DatePickerFragment1();
        dateFragment.show(getFragmentManager(), "datePicker");

    }

public static class DatePickerFragment1 extends DialogFragment implements DatePickerDialog.OnDateSetListener {
    private Context context;
    @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);
        context=getActivity();

        // Create a new instance of DatePickerDialog and return it

        return new DatePickerDialog(getActivity(), this, year, month, day);
    }

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

        pYear = year;
        pMonth = month;
        pDay = dayOfMonth;
        Creation_Date_Display();
    }

    private void Creation_Date_Display() {
        StringBuffer DATE = (new StringBuffer().append(pYear).append("-")
                .append(pMonth + 1).append("-")
                .append(pDay).append(" "));
        // CreationDate.setText(DATE);

        // Use to make an Correct Format Of a Date
        String input = String.valueOf(DATE);
        SimpleDateFormat df1 = new SimpleDateFormat("yyyy-MM-dd");
        Date date = null;
        try {
            date = df1.parse(input);
        }catch (Exception e){
            e.printStackTrace(e);
        }
        String formattedDateOrder = df1.format(date);
        CreationDate.setText(formattedDateOrder);
        Creation_Date = formattedDateOrder;

    }
}

我是新来的Android

请帮帮我

Answer 1

试试这个你可以使用 setMaxDate() 方法，该方法用于设置此 DatePicker 支持的最大日期，以毫秒为单位自 1970 年 1 月 1 日起 00:00:00 在 getDefault() 时区。
setMaxDate

    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 mDatePicker = new DatePickerDialog(SearchResultClass.this,
            R.style.MyDialogTheme,
            new DatePickerDialog.OnDateSetListener() {
                public void onDateSet(DatePicker datepicker, int selectedyear, int selectedmonth, int selectedday) {

                }

            }, mYear, mMonth, mDay);

           mDatePicker.getDatePicker().setMaxDate(System.currentTimeMillis());
 mDatePicker.getDatePicker().setMinDate(System.currentTimeMillis() - 1000);

Answer 2

下面的代码阻止了未来的 dates.using setMaxDate 方法，并获取系统日期。

     @Override
     public Dialog onCreateDialog(Bundle savedInstanceState) {
        // Use the current date as the default date in the picker
        DatePickerDialog mDatePicker=new DatePickerDialog(getActivity(), this, year, month, day);
        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);
        context=getActivity();
        mDatePicker.getDatePicker().setMaxDate(System.currentTimeMillis());
        // Create a new instance of DatePickerDialog and return it

        return mDatePicker;
    }

Toast 示例代码：

if(day>c.get(Calendar.DAY_OF_MONTH){
Toast.makeText(mContext, "select valid day", Toast.LENGTH_LONG).show();
        return false;
}

Answer 3

您必须像下面那样设置属性以限制最小和最大日期。

DatePickerDialog datePickerDialog = new DatePickerDialog(mContext, R.style.DatePicker, date, myCalendar.get(Calendar.YEAR), myCalendar.get(Calendar.MONTH), myCalendar.get(Calendar.DAY_OF_MONTH));
        // to set Max Date
            datePickerDialog.getDatePicker().setMaxDate(System.currentTimeMillis());
        // to set Min Date
            datePickerDialog.getDatePicker().setMinDate(System.currentTimeMillis() - 1000);
        datePickerDialog.show();

Answer 4

Date selectedDate = Date.valueOf(pYear+"-"+(pMonth+1)+"-"+pDay);
            if(selectedDate.getTime()>System.currentTimeMillis()){
                Toast.makeText(context, "Can not Select Future Date", Toast.LENGTH_SHORT).show();
                selectedDate = new Date(System.currentTimeMillis());
               /* pYear = selectedDate.getYear()+1900;
                pMonth = selectedDate.getMonth();
                pDay = selectedDate.getDay();*/

                pYear = yearCheck;
                pMonth = monthCheck;
                pDay = dayCheck;
            }

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