How to popup datepicker when click on edittext

I want to show datepicker popup window. I have found some examples but i am not getting it properly. I have one edittext and i want that when i click on edittext the datepicker dialog should popup and after setting the date, the date should show in edittext in dd/mm/yyyy format. PLease provide me sample code or good links.

Step 1. Crate a layout activity_main.xml

<EditText
   android:id="@+id/Birthday"
   custom:font="@string/font_avenir_book"
   android:clickable="true"
   android:editable="false"
   android:hint="@string/birthday"/>

Step 2. Create a class activity_main.java

final Calendar myCalendar = Calendar.getInstance();
EditText edittext= (EditText) findViewById(R.id.Birthday);
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();
    }
};

Step 3. you create event click edittext popup datepicker in android

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

Step 4. Now add the method in the above activity.

private void updateLabel() {
    String myFormat = "MM/dd/yy"; //In which you need put here
    SimpleDateFormat sdf = new SimpleDateFormat(myFormat, Locale.US);
    edittext.setText(sdf.format(myCalendar.getTime()));
}

Note: Add android:focusable="false" within the xml file of the EditText to allow for a single touch.