How to disable dates before today date in DatePickerDialog Android?

I want to disable the dates before today date in the DatePickerDialog .I am new in android please suggest me how could i do this .Here is my code that i have written for DatePickerDialog

 final DatePickerDialog.OnDateSetListener date = 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(val);
            }
        };
        depart.setOnClickListener(new View.OnClickListener() {

                @Override
                public void onClick(View v) {
                    // TODO Auto-generated method stub
                    new DatePickerDialog(this, date, myCalendar
                            .get(Calendar.YEAR), myCalendar.get(Calendar.MONTH),
                            myCalendar.get(Calendar.DAY_OF_MONTH)).show();
                    val=1;
                }
            });

        returnDate.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    // TODO Auto-generated method stub
                    new DatePickerDialog(this, date, myCalendar
                            .get(Calendar.YEAR), myCalendar.get(Calendar.MONTH),
                            myCalendar.get(Calendar.DAY_OF_MONTH)).show();
                            val=2;
                }
            });


private void updateLabel(int val) {

        String myFormat = "dd/MM/yy"; //In which you need put here
        SimpleDateFormat sdf = new SimpleDateFormat(myFormat, Locale.US);
        Log.d("Date vlue ", "==="+sdf.format(myCalendar.getTime()));
        if(val==1)
            depart.setText(sdf.format(myCalendar.getTime()));
        else
            returnDate.setText(sdf.format(myCalendar.getTime()));

        }

Please suggest me what have to do

Get the DatePicker used in your DatePickerDialog with the getDatePicker() method and use the setMinDate(Long millis) method.

Pass to it the minimum date (in milliseconds from Epoch) you have to set.

So you can do something like

SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
Date d = sdf.parse("21/12/2012");
DatePicker datePicker = date.getDatePicker();
datePicker.setMinDate(d.getTime());

EDIT:

ok, so when your creating your DatePickerDialog, before showing it, just save it to a variable, set the minimum date and then show it.

DatePickerDialog dpd = new DatePickerDialog(IweenFlightSearch.this, date, myCalendar.get(Calendar.YEAR), myCalendar.get(Calendar.MONTH), myCalendar.get(Calendar.DAY_OF_MONTH));
SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyyy");
Date d = sdf.parse("21/12/2012");
dpd.getDatePicker().setMinDate(d.getTime());
dpd.show();

this should work.

See this example..!

import java.util.Calendar;
import android.app.Activity;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.TextView;

public class MyAndroidAppActivity extends Activity {

    private TextView tvDisplayDate;

    private Button btnChangeDate;

    private int myear;
    private int mmonth;
    private int mday;

    static final int DATE_DIALOG_ID = 999;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        setCurrentDateOnView();
        addListenerOnButton();

    }

    // display current date
    public void setCurrentDateOnView() {

        tvDisplayDate = (TextView) findViewById(R.id.tvDate);       

        final Calendar c = Calendar.getInstance();
        myear = c.get(Calendar.YEAR);
        mmonth = c.get(Calendar.MONTH);
        mday = c.get(Calendar.DAY_OF_MONTH);

        // set current date into textview
        tvDisplayDate.setText(new StringBuilder()
                // Month is 0 based, just add 1
                .append(mmonth + 1).append("-").append(mday).append("-")
                .append(myear).append(" "));
    }

    public void addListenerOnButton() {

        btnChangeDate = (Button) findViewById(R.id.btnChangeDate);

        btnChangeDate.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {

                showDialog(DATE_DIALOG_ID);

            }

        });

    }

    @Override
    protected Dialog onCreateDialog(int id) {
        switch (id) {
        case DATE_DIALOG_ID:
            // set date picker as current date
            DatePickerDialog _date =   new DatePickerDialog(this, datePickerListener, myear,mmonth,
                    mday){
                @Override
                public void onDateChanged(DatePicker view, int year, int monthOfYear, int dayOfMonth)
                {   
                    if (year < myear)
                        view.updateDate(myear, mmonth, mday);

                    if (monthOfYear < mmonth && year == myear)
                        view.updateDate(myear, mmonth, mday);

                    if (dayOfMonth < mday && year == myear && monthOfYear == mmonth)
                        view.updateDate(myear, mmonth, mday);

                }
            };
            return _date;
        }
        return null;
    }

    private DatePickerDialog.OnDateSetListener datePickerListener = new DatePickerDialog.OnDateSetListener() {

        // when dialog box is closed, below method will be called.
        public void onDateSet(DatePicker view, int selectedYear,
                int selectedMonth, int selectedDay) {
            myear = selectedYear;
            mmonth = selectedMonth;
            mday = selectedDay;

            // set selected date into textview
            tvDisplayDate.setText(new StringBuilder().append(mmonth + 1)
                    .append("-").append(mday).append("-").append(myear)
                    .append(" "));    

        }
    };

}

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <Button
        android:id="@+id/btnChangeDate"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Change Date" />

    <TextView
        android:id="@+id/lblDate"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Current Date (M-D-YYYY): "
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <TextView
        android:id="@+id/tvDate"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text=""
        android:textAppearance="?android:attr/textAppearanceLarge" />

</LinearLayout>

// Create a new instance of DatePickerDialog and return it

 DatePickerDialog datePickerDialog = new DatePickerDialog(getActivity(), this,year,month,day);
            datePickerDialog.getDatePicker().setMinDate(System.currentTimeMillis());
            return datePickerDialog;

I know it is too late. But hope this will helps. Use

date .getDatePicker().setMinDate(System.currentTimeMillis() - 1000);

in your case date is DatePickerDialog

Cheers!