Android DatePicker

Categories: Android // Tags: Android DatePicker, DatePicker.

Android DatePicker is a widget to select date. It allows you to select date by day, month and year. Like DatePicker, android also provides TimePicker to select time.
The android.widget.DatePicker is the subclass of FrameLayout class.

DatePicker object is also passed into this function. You can use the following methods of the DatePicker to perform further operation.

Sr.No	Method & description
1	getDayOfMonth()This method gets the selected day of month
2	getMonth()This method gets the selected month
3	getYear()This method gets the selected year
4	setMaxDate(long maxDate)This method sets the maximal date supported by this DatePicker in milliseconds since January 1, 1970 00:00:00 in getDefault() time zone
5	setMinDate(long minDate)This method sets the minimal date supported by this NumberPicker in milliseconds since January 1, 1970 00:00:00 in getDefault() time zone
6	setSpinnersShown(boolean shown)This method sets whether the spinners are shown
7	updateDate(int year, int month, int dayOfMonth)This method updates the current date
8	getCalendarView()This method returns calendar view
9	getFirstDayOfWeek()This Method returns first day of the week

Android DatePicker Example

Now we are going to see the example that will help you for undarstand the android datepicker .

activity_main.xml

File: activity_main.xml

Java
<?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" />

    <DatePicker
        android:id="@+id/dpResult"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</LinearLayout

				
					
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						<?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" />
 
    <DatePicker
        android:id="@+id/dpResult"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
 
</LinearLayout

					

			

Activity class

File: MainActivity.java

package com.example.datepicker2;  
  
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 DatePicker dpResult;
	private Button btnChangeDate;

	private int year;
	private int month;
	private int day;

	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);
		dpResult = (DatePicker) findViewById(R.id.dpResult);

		final Calendar c = Calendar.getInstance();
		year = c.get(Calendar.YEAR);
		month = c.get(Calendar.MONTH);
		day = c.get(Calendar.DAY_OF_MONTH);

		// set current date into textview
		tvDisplayDate.setText(new StringBuilder()
			// Month is 0 based, just add 1
			.append(month + 1).append("-").append(day).append("-")
			.append(year).append(" "));

		// set current date into datepicker
		dpResult.init(year, month, day, null);

	}

	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
		   return new DatePickerDialog(this, datePickerListener, 
                         year, month,day);
		}
		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) {
			year = selectedYear;
			month = selectedMonth;
			day = selectedDay;

			// set selected date into textview
			tvDisplayDate.setText(new StringBuilder().append(month + 1)
			   .append("-").append(day).append("-").append(year)
			   .append(" "));

			// set selected date into datepicker also
			dpResult.init(year, month, day, null);

		}
	};

}

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package com.example.datepicker2;

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 DatePicker dpResult;

private Button btnChangeDate;

private int year;

private int month;

private int day;

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);

dpResult = (DatePicker) findViewById(R.id.dpResult);

final Calendar c = Calendar.getInstance();

year = c.get(Calendar.YEAR);

month = c.get(Calendar.MONTH);

day = c.get(Calendar.DAY_OF_MONTH);

// set current date into textview

tvDisplayDate.setText(new StringBuilder()

// Month is 0 based, just add 1

.append(month + 1).append("-").append(day).append("-")

.append(year).append(" "));

// set current date into datepicker

dpResult.init(year, month, day, null);

}

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

return new DatePickerDialog(this, datePickerListener,

year, month,day);

}

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) {

year = selectedYear;

month = selectedMonth;

day = selectedDay;

// set selected date into textview

tvDisplayDate.setText(new StringBuilder().append(month + 1)

.append("-").append(day).append("-").append(year)

.append(" "));

// set selected date into datepicker also

dpResult.init(year, month, day, null);

}

};

}

Output:

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activity_main.xml

Activity class

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