如何在Android日期选择器中禁用未来日期

Question

如何在Android日期选择器中禁用未来日期

Java代码:

mExpireDate.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {

                // To show current date in the datepicker
                final Calendar mcurrentDate = Calendar.getInstance();
                int mYear = mcurrentDate.get(Calendar.YEAR);
                int mMonth = mcurrentDate.get(Calendar.MONTH);
                int mDay = mcurrentDate.get(Calendar.DAY_OF_MONTH);

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

                                mcurrentDate.set(Calendar.YEAR, selectedyear);
                                mcurrentDate.set(Calendar.MONTH, selectedmonth);
                                mcurrentDate.set(Calendar.DAY_OF_MONTH,
                                        selectedday);
                                SimpleDateFormat sdf = new SimpleDateFormat(
                                        getResources().getString(
                                                R.string.date_card_formate),
                                        Locale.US);

                                mExpireDate.setText(sdf.format(mcurrentDate
                                        .getTime()));
                            }
                        }, mYear, mMonth, mDay);

                mDatePicker.setTitle(getResources().getString(
                        R.string.alert_date_select));
                mDatePicker.show();
            }
        });

请帮忙怎么做？

Answer 1

获取DatePicker来自DatePickerDialog与getDatePicker().将最大日期设置为当前日期setMaxDate():

mDatePicker.getDatePicker().setMaxDate(System.currentTimeMillis());

需要API级别11.

Answer 2

您可以在DatePickerDialog上调用getDatePicker().setMaxDate(long),将今天设置为最大日期.您可以使用您发布的代码段中的相同名称更新该功能.

注意:: DatePickerDialog是我在Android文档中从我发布的链接中引用的对象.

@Override
protected Dialog onCreateDialog(int id) {
    Calendar c = Calendar.getInstance();
    int cyear = c.get(Calendar.YEAR);
    int cmonth = c.get(Calendar.MONTH);
    int cday = c.get(Calendar.DAY_OF_MONTH);
    switch (id) {
        case DATE_DIALOG_ID:
        //start changes...
        DatePickerDialog dialog = new DatePickerDialog(this, mDateSetListener, cyear, cmonth, cday);
        dialog.getDatePicker().setMaxDate(System.currentTimeMillis());
        return dialog;
        //end changes...
    }
    return null;
}

试试这个,并提供反馈!

Answer 3

 // Custom Your Future Dates  

 // Example for today and next 3 days :- 3(NUMBER OF NEXT DAYS)*24*60*60*1000l

 // As 24 represents hrs in day

 // As 60 mins 60 secs and convert it to millisec

 //Inside Class which implements DatePickerDialog.OnDateSetListener
 private Calendar mCurrentDate;

 //Inside OnCreate Method
 mDateEditText.setOnClickListener(new View.OnClickListener() {
  @Override
  public void onClick(View v) {

   mCurrentDate = Calendar.getInstance();
   int year = mCurrentDate.get(Calendar.YEAR);
   int month = mCurrentDate.get(Calendar.MONTH);
   int day = mCurrentDate.get(Calendar.DAY_OF_MONTH);

   DatePickerDialog mDatePickerDialog = new DatePickerDialog(this, this, year, month, day);
   mDatePickerDialog.getDatePicker().setMaxDate(System.currentTimeMillis() + 3 * 24 * 60 * 60 * 1000 l);
  }
 });


 @Override
 public void onDateSet(DatePicker view, int year, int month, int dayOfMonth) {
  mDateEditText.setText(dayOfMonth + "/" + month + "/" + year);

 }

Answer 4

以下代码可帮助您禁用将来的日期：

全局声明日历变量：

private Calendar myCalendar = Calendar.getInstance();

将以下代码放入onCreate方法中：

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

    @Override
    public void onDateSet(DatePicker view, int year, int monthOfYear,
                          int dayOfMonth) {
        // TODO Auto-generated method stub
        myCalendar.set(Calendar.YEAR, year);
        myCalendar.set(Calendar.MONTH, monthOfYear);
        myCalendar.set(Calendar.DAY_OF_MONTH, dayOfMonth);
        updateLabel();
    }

};

在按钮上单击，输入以下代码：

DatePickerDialog datePickerDialog=new DatePickerDialog(getActivity(), dateListener, myCalendar
                    .get(Calendar.YEAR), myCalendar.get(Calendar.MONTH),
                    myCalendar.get(Calendar.DAY_OF_MONTH));

               //following line to restrict future date selection     
            datePickerDialog.getDatePicker().setMaxDate(System.currentTimeMillis());
            datePickerDialog.show();

Answer 5

如果用户选择将来的日期，则将日期选择器更新为当前日期（今天）

您可以使用以下代码来检查所选日期是否为将来的日期

final Calendar cal = Calendar.getInstance();
datePickerDob.init(currentYear, currentMonth, currentDay,
            new OnDateChangedListener() {

                @Override
                public void onDateChanged(DatePicker view, int year,
                        int monthOfYear, int dayOfMonth) {
                    Calendar selectedCal = Calendar.getInstance();
                    selectedCal.set(year, monthOfYear, dayOfMonth);

                    long selectedMilli = selectedCal.getTimeInMillis();

                    Date datePickerDate = new Date(selectedMilli);
                    if (datePickerDate.after(new Date())) {

                        datePickerDob.updateDate(cal.get(Calendar.YEAR),
                                cal.get(Calendar.MONTH),
                                cal.get(Calendar.DAY_OF_MONTH));

                    } else {


                    }

                }
            });

您也可以使用compareTo（）方法

datePickerDate.compareTo(new Date());

将接收者与指定的日期进行比较，以确定相对的顺序。

参数date一个要比较的日期。

如果此Date小于指定的Date，则返回int <0；如果等于，则返回0；如果此Date大于，则返回int> 0。