DatePicker

DatePicker is android widget. And choose from the date and time under this select the datepicker widget. We can select the year,month,day.

activitymain.xml :-

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:orientation="vertical"
  tools:context="com.kiranapp.MainActivity">
<TextView
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:text="Date :"
  android:id="@+id/textView"
  android:layout_marginTop="30dp"
  android:layout_gravity="center_horizontal" />
<Button
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:text="choose date"
  android:id="@+id/button"
  android:layout_marginTop="30dp"
  android:layout_gravity="center_horizontal" />
<DatePicker
  android:layout_width="wrap_content"
  android:layout_height="wrap_content"
  android:id="@+id/datePicker"
  android:layout_gravity="center_horizontal" />
</LinearLayout>

MainActivity.java :-

package com.kiranapp;

import android.app.DatePickerDialog;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.TextView;

import java.util.Calendar;

public class MainActivity extends AppCompatActivity {
   Button selectbtn;
   TextView displaydate;
   Calendar c=Calendar.getInstance();
   int cdate,cmonth,cyear;

@Override
   protected void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   setContentView(R.layout.activity_main);
   selectbtn=(Button)findViewById(R.id.button);
   displaydate=(TextView)findViewById(R.id.textView);
   selectbtn.setOnClickListener(new View.OnClickListener() {
@Override
   public void onClick(View v) {
   new DatePickerDialog(MainActivity.this,d1,c.get(Calendar.YEAR),
   c.get(Calendar.MONTH),c.get(Calendar.DAY_OF_MONTH)).show();
   }
   });
   }
  DatePickerDialog.OnDateSetListener d1=new DatePickerDialog.OnDateSetListener() {
 @Override
    public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
    cdate=dayOfMonth;
    cmonth=monthOfYear+1;
    cyear=year;
    displaydate.setText("Date is :"+cdate+"-"+cmonth+"-"+cyear);
    }
    };
}

Output :-

DatePicker fig :1

DatePicker fig :2

DatePicker fig:3