Android DatePicker and TimePicker Cases

The following describes the functions and usage of DatePicker and TimePicker in an example that allows users to select a date and time. Step 1: Create a project DateAndTimePicker Step 2: Compile the UI interface/layout/main of the application. xml [html] <? Xml version = "1.0" encoding = "UTF-8"?> <LinearLayout xmlns: android = "http://schemas.android.com/apk/res/android" android: orientation = "vertical" android: layout_width = "fill_parent" android: layout_height = "fill_parent"> <TextView android: layout_width = "fill_parent" android: layout_height = "wrap_content" android: text = "select the time to purchase this book"/> <DatePicker android: id = "@ + id/datePicker" android: layout_width = "wrap_content" android: layout_height = "wrap_content" android: layout_gravity = "center_horizontal"/> <TimePicker android: id = "@ + id/timePicker" android: layout_width = "wrap_content" android: layout_height = "wrap_content" android: layout_gravity = "center_horizontal"/> <EditText android: layout_width = "fill_parent" android: layout_height = "wrap_content" android: editable = "false" android: cursorVisible = "false" android: id = "@ + id/show"/> </LinearLayout> Step 3: main program MainActivity. java [java] package cn. roco. picker; import java. util. calendar; import android. app. activity; import android. OS. bundle; import android. widget. datePicker; import android. widget. datePicker. onDateChangedListener; import android. widget. editText; import android. widget. timePicker; import android. widget. timePicker. onTimeChangedListener; public class MainActivity extends Activity {private int year; private int month; private int day; private int hour; private int minute;/** Called when the activity is first created. * // @ Override public void onCreate (Bundle savedInstanceState) {super. onCreate (savedInstanceState); setContentView (R. layout. main); DatePicker datePicker = (DatePicker) findViewById (R. id. datePicker); TimePicker timePicker = (TimePicker) findViewById (R. id. timePicker); Calendar calendar = Calendar. getInstance (); year = calendar. get (Calendar. YEAR); month = calendar. get (Calendar. MONTH); day = calendar. get (Calendar. DAY_OF_MONTH); hour = calendar. get (Calendar. HOUR); minute = calendar. get (Calendar. MINUTE); datePicker. init (year, month, day, new OnDateChangedListener () {@ Override public void onDateChanged (DatePicker view, int year, int month, int day) {MainActivity. this. year = year; MainActivity. this. month = month; MainActivity. this. day = day; // display time showDate (year, month, day, hour, minute) ;}}); timePicker. setOnTimeChangedListener (new OnTimeChangedListener () {@ Override public void onTimeChanged (TimePicker view, int hour, int minute) {MainActivity. this. hour = hour; MainActivity. this. minute = minute; // display time showDate (year, month, day, hour, minute) ;}}) ;}private void showDate (int year, int month, int day, int hour, int minute) {EditText show = (EditText) findViewById (R. id. show); show. setText ("your purchase date is: "+ year +" year "+ month +" month "+ day +" day "+ hour +" hour "+ minute +" minute ") ;}} Step 4: deploy the application to the simulator and select the date and time