Date and Time picker in android

main.xml

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="wrap_content"

    android:layout_height="wrap_content"

    android:orientation="vertical">

    <TextView android:id="@+id/timeDisplay"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text=""/>

    <Button android:id="@+id/pickTime"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="Change the time"/>

</LinearLayout>

.java file

package com.example.timepicker;

import java.util.Calendar;

import android.app.Activity;

import android.app.Dialog;

import android.app.TimePickerDialog;

import android.os.Bundle;

import android.view.View;

import android.widget.Button;

import android.widget.TextView;

import android.widget.TimePicker;

public class timepicker extends Activity {

   

     private TextView mTimeDisplay;

        private Button mPickTime;

        private int mHour;

        private int mMinute;

        static final int TIME_DIALOG_ID = 0;

    /** Called when the activity is first created. */

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

       

        // capture our View elements

        mTimeDisplay = (TextView) findViewById(R.id.timeDisplay);

        mPickTime = (Button) findViewById(R.id.pickTime);

        // add a click listener to the button

        mPickTime.setOnClickListener(new View.OnClickListener() {

            public void onClick(View v) {

                showDialog(TIME_DIALOG_ID);

            }

        });

        // get the current time

        final Calendar c = Calendar.getInstance();

        mHour = c.get(Calendar.HOUR_OF_DAY);

        mMinute = c.get(Calendar.MINUTE);

        // display the current date

        updateDisplay();

       

    }

    private void updateDisplay() {

        mTimeDisplay.setText(

            new StringBuilder()

                    .append(pad(mHour)).append(":")

                    .append(pad(mMinute)));

    }

    private static String pad(int c) {

        if (c >= 10)

            return String.valueOf(c);

        else

            return "0" + String.valueOf(c);

    }

   

 // the callback received when the user "sets" the time in the dialog

    private TimePickerDialog.OnTimeSetListener mTimeSetListener =

        new TimePickerDialog.OnTimeSetListener() {

            public void onTimeSet(TimePicker view, int hourOfDay, int minute) {

                mHour = hourOfDay;

                mMinute = minute;

                updateDisplay();

            }

        };

       

        protected Dialog onCreateDialog(int id) {

            switch (id) {

            case TIME_DIALOG_ID:

                return new TimePickerDialog(this,

                        mTimeSetListener, mHour, mMinute, false);

            }

            return null;

        }

}