DatePicker in Kotlin

Android DatePicker is a user interface control which is used to select the date by day, month and year in our android application. DatePicker is used to ensure that the users will select a valid date.

In android DatePicker having two modes, first one to show the complete calendar and second one shows the dates in spinner view.

We can create a DatePicker control in two ways either manually in XML file or create it in Activity file programmatically.



First we create a new project by following the below steps:

  1. Click on File, then New => New Project.
  2. After that include the Kotlin support and click on next.
  3. Select the minimum SDK as per convenience and click next button.
  4. Then select the Empty activity => next => finish.

Android DatePicker with Calendar mode

We can use android:datePickerMode to show only calendar view. In the below example, we are using the DatePicker in Calendar mode.

filter_none

edit
close

play_arrow

link
brightness_4
code

<DatePicker
    android:id="@+id/datePicker"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:datePickerMode="calendar"/>

chevron_right


The above code of DatePicker can be seen in android application like this

Android DatePicker with Spinner mode

We can also show the DatePicker in spinner format like selecting the day, month and year separately, by using android:datePickerMode attribute and set android:calendarViewShown=”false”, otherwise both spinner and calender can be seen simultaneously.

filter_none

edit
close

play_arrow

link
brightness_4
code

<DatePicker
    android:id="@+id/datePicker1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:datePickerMode="spinner"
    android:calendarViewShown="false"/>

chevron_right


The above code of DatePicker can be seen in android application like this

Different attributes of DatePicker control –

XML Attributes Description
android:id Used to uniquely identify the control.
android:datePickerMode Used to specify the mode of datepicker(spinner or calendar)
android:calendarTextColor Used to specify the color of the text.
android:calendarViewShown Used to specify whether view of the calendar is shown or not.
android:background Used to set background color of the Text View.
android:padding Used to set the padding from left, right, top and bottom.

To use Calender DatePicker in activity_main.xml

In this file, we will add the DatePicker and Button widget and set their attributes so that it can be accessed in the kotlin file.

filter_none

edit
close

play_arrow

link
brightness_4
code

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/linear_layout"
    android:gravity = "center">
  
    <DatePicker
        android:id="@+id/date_Picker"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>
</LinearLayout>

chevron_right


To use Spinner DatePicker in activity_main.xml

In this file, we will add the DatePicker and Button widget and set their attributes so that it can be accessed in the kotlin file.

filter_none

edit
close

play_arrow

link
brightness_4
code

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/linear_layout"
    android:gravity = "center">
  
    <DatePicker
        android:id="@+id/date_Picker"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:datePickerMode = "spinner"
        android:calendarViewShown="false"/>
</LinearLayout>

chevron_right


Modify the strings.xml file to add the string-array

Here, we will specify the name of the activity.

filter_none

edit
close

play_arrow

link
brightness_4
code

<resources>
    <string name="app_name">DatePickerInKotlin</string>
</resources>

chevron_right


Access the DatePicker in MainActivity.kt file

First of all, we declare a variable datePicker to access the DatePicker widget from the XML layout.

val datePicker = findViewById<DatePicker>(R.id.date_Picker)

then, we declare another variable today to get the current get like this.

val today = Calendar.getInstance()
    datePicker.init(today.get(Calendar.YEAR), today.get(Calendar.MONTH),
    today.get(Calendar.DAY_OF_MONTH)

To display the selected date from the calendar we will use

 { view, year, month, day ->
            val month = month + 1
            val msg = "You Selected: $day/$month/$year"
            Toast.makeText(this@MainActivity, msg, Toast.LENGTH_SHORT).show()
 }

We are familiar with further activities in previous articles like accessing button and set OnClickListener etc.

filter_none

edit
close

play_arrow

link
brightness_4
code

package com.geeksforgeeks.myfirstkotlinapp
  
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.*
import java.util.*
  
class MainActivity : AppCompatActivity() {
  
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
  
        val datePicker = findViewById<DatePicker>(R.id.date_Picker)
        val today = Calendar.getInstance()
        datePicker.init(today.get(Calendar.YEAR), today.get(Calendar.MONTH),
            today.get(Calendar.DAY_OF_MONTH)
  
        ) { view, year, month, day ->
            val month = month + 1
            val msg = "You Selected: $day/$month/$year"
            Toast.makeText(this@MainActivity, msg, Toast.LENGTH_SHORT).show()
        }
    }
}

chevron_right


AndroidManifest.xml file

filter_none

edit
close

play_arrow

link
brightness_4
code

<?xml version="1.0" encoding="utf-8"?>
package="com.geeksforgeeks.myfirstkotlinapp">
  
<application
    android:allowBackup="true"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:roundIcon="@mipmap/ic_launcher_round"
    android:supportsRtl="true"
    android:theme="@style/AppTheme">
    <activity android:name=".MainActivity">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
  
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>
  
</manifest>

chevron_right


Run as Emulator:

 



My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.




Article Tags :

Be the First to upvote.


Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.