Create A DatePicker App In Android Application Using Android Studio

Introduction

This blog helps to explain how to develop a DatePicker app in an Android Application, using Android Studio.

Here, you can create your Application name and choose where your project is stored on the location and click Next button.



Now, we can select the version of an Android; it is Target Android Devices.



Here, we can add the activity and click Next button.



Now, we can write the activity name and click Finish button.



Now, open your project and you will go to the activity_main.xml and afterwards, you will build the design. You should choose the toolbox and if you want some options (DatePicker, button), use the drag and drop method.



Now, we can see the Graphical User Interface design.



Here, you need to build on the design and write .XML code.

activity_mai.xml code.

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context="xyz.rvconstructions.www.datepickerapp.MainActivity">
    <DatePicker android:id="@+id/firstDatePicker" android:layout_width="wrap_content" android:layout_height="wrap_content" android:background="#00554a" android:datePickerMode="spinner" />
    <Button android:id="@+id/submitButton" android:layout_width="200dp" android:layout_height="wrap_content" android:layout_below="@+id/firstDatePicker" android:layout_centerHorizontal="true" android:layout_marginTop="50dp" android:background="#554800" android:text="submit" android:textColor="#fff" android:textSize="20sp" android:textStyle="bold" /> </RelativeLayout>

Now, you will go to the MainActivity.java page and build Java code.

First of all, you will declare a file, which is an extension file.



Now, we can see MainActivity.java code.

package xyz.rvconstructions.www.datepickerapp;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.DatePicker;
import android.widget.Button;
import android.widget.Toast;
public class MainActivity extends AppCompatActivity {
    DatePicker oneDatePicker;
    Button submit;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        oneDatePicker = (DatePicker) findViewById(R.id.firstDatePicker);
        submit = (Button) findViewById(R.id.submitButton);
        // perform click event on submit button
        submit.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                // get the values for day of month , month and year from a date picker
                String day = "Day = " + oneDatePicker.getDayOfMonth();
                String month = "Month = " + (oneDatePicker.getMonth() + 1);
                String year = "Year = " + oneDatePicker.getYear();
                // display the values by using a toast
                Toast.makeText(getApplicationContext(), day + "\n" + month + "\n" + year, Toast.LENGTH_LONG).show();
            }
        });
    }
}

Step 7

Here, you will go to run it and select Run-> Run app option.



Here, you will choose Emulator or the devices; it is Nokia Nokia _X.



Here, you can see the output.



Now, you can select some date and click the submit button. Afterwards, you will see the output given below.