如何从当前月份和年份的日期选择器显示以限制显示上一年和月份的android？

Question

I am using custom date picker where i am using like this.

public class DatePickersDialog extends DatePickerDialog implements OnDateChangedListener {

    private DatePickerDialog mDatePicker;

     public DatePickersDialog(Context context, OnDateSetListener callBack,
            int year, int monthOfYear, int dayOfMonth) {
        super(context,callBack, year, monthOfYear, dayOfMonth);
       mDatePicker = new DatePickerDialog(context,callBack, year, monthOfYear, dayOfMonth);
       mDatePicker.getDatePicker().init(year, monthOfYear, dayOfMonth, this);
        updateTitle(year, monthOfYear);

    }
    public void onDateChanged(DatePicker view, int year,
        int month, int day) {
    updateTitle(year, month);
    }
    private void updateTitle(int year, int month) {
        Calendar mCalendar = Calendar.getInstance();
        mCalendar.set(Calendar.YEAR, year);
        mCalendar.set(Calendar.MONTH, month);
        mDatePicker.setTitle(getFormat().format(mCalendar.getTime()));

    }  
    public DatePickerDialog getPicker(){
        return this.mDatePicker;
    }

    public SimpleDateFormat getFormat(){
    return new SimpleDateFormat("MMM, yyyy");
    };   

   }
Utils.class 


public static DatePickerDialog customDatePickers(Activity activity, DatePickerDialog.OnDateSetListener datePickerListener) {

    Calendar c = Calendar.getInstance();
    int cardYear = c.get(Calendar.YEAR);
    int cardMonth = c.get(Calendar.MONTH);
    int cardDay = c.get(Calendar.DAY_OF_MONTH);
    DatePickersDialog datePickersDialog = new DatePickersDialog(activity,datePickerListener,cardYear,cardMonth,cardDay);
    Date minDate = new Date();
    c.set(cardYear, cardMonth, cardDay - 1, 0, 0);
    minDate.setTime(c.getTimeInMillis());
    DatePickerDialog datePickerDialog = datePickersDialog.getPicker();

    try {
        Field[] datePickerDialogFields = datePickerDialog.getClass().getDeclaredFields();
        for (Field datePickerDialogField : datePickerDialogFields) {
            if (datePickerDialogField.getName().equals("mDatePicker")) {
                datePickerDialogField.setAccessible(true);
                DatePicker datePicker = (DatePicker) datePickerDialogField.get(datePickerDialog);
                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);
                    }
                }
            }
        }
        datePickerDialog.show();
    } catch (Exception ex) {
    }
    return datePickerDialog;
}

 scanExpireDate = (CheckoutEditText) findViewById(R.id.scan_expire_date);
scanExpireDate.setTextView();



public void onDatePickerClick(View view){
            Utils.customDatePicker(this, datePickerListener);
    }

But it displays like this below pic. showing previous year and month. How to restrict that?

How to solove this?

Thanks in advance

Answer 1

Set its bounds using:

setMinDate(long minDate)
setMaxDate(long maxDate)

Where the argument is the usual number of milliseconds since January 1, 1970 00:00:00 in the default time zone. You'll still have to calculate these values of course, but that should be trivial to do with the Calendar class: just take the current date and add or substract x years.

EDIT: You can get the underlying DatePicker from a DatePickerDialog (by simply calling getDatePicker()) or in your code I think it's where you call DatePicker datePicker and just add rows like:

datePicker.setMinDate(<long variable>);

Answer 2

I fixed this by using this in custom date picker. Hope it might help for someone

DatePickerDialog datePickerDialog = datePickersDialog.getPicker(); datePickerDialog.getDatePicker().setMinDate(minDate.getTime());