DatePicker&&TimePicker

import java.util.Calendar;

import android.app.Activity;
import android.os.Bundle;
import android.widget.DatePicker;
import android.widget.DatePicker.OnDateChangedListener;
import android.widget.TimePicker;
import android.widget.TimePicker.OnTimeChangedListener;
import android.widget.Toast;

public class MainActivity extends Activity {
 private int year; // 年
 private int month;
 private int day;
 private int hour;
 private int minute;

 @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);
  DatePicker datepicker = (DatePicker) findViewById(R.id.datePicker1); // 获取日期拾取组件
  TimePicker timepicker = (TimePicker) findViewById(R.id.timePicker1); // 获取时间拾取组件
  timepicker.setIs24HourView(true);
  Calendar calendar = Calendar.getInstance();
  year = calendar.get(Calendar.YEAR); // 获取当前年份
  month = calendar.get(Calendar.MONTH); // 获取当前月份
  day = calendar.get(Calendar.DAY_OF_MONTH); // 获取当前日
  hour = calendar.get(Calendar.HOUR_OF_DAY); // 获取当前小时数
  minute = calendar.get(Calendar.MINUTE); // 获取当前分钟数
  timepicker.setCurrentHour(hour);  //设置当前的小时数（后添加的）
  timepicker.setCurrentMinute(minute);  //设置当前的分钟数（后添加的）
  // 初始化日期拾取器，并在初始化时指定监听器
  datepicker.init(year, month, day, new OnDateChangedListener() {
   @Override
   public void onDateChanged(DatePicker arg0, int year, int month,
     int day) {
    MainActivity.this.year = year; // 改变year属性的值
    MainActivity.this.month = month; // 改变month属性的值
    MainActivity.this.day = day; // 改变day属性的值
    show(year, month, day, hour, minute); // 经过消息框显示日期时间
   }
  });
  // 为时间拾取器设置监听器
  timepicker.setOnTimeChangedListener(new OnTimeChangedListener() {

   @Override
   public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {
    MainActivity.this.hour = hourOfDay; // 改变hour属性的值
    MainActivity.this.minute = minute; // 改变minute属性的值
    show(year, month, day, hourOfDay, minute); // 经过消息框显示选择的日期时间
   }
  });

 }

 private void show(int year, int month, int day, int hour, int minute) {
  String str = year + "年" + (month+1) + "月" + day + "日  " + hour + ":"
    + minute; // 获取拾取器设置的日期和时间
  Toast.makeText(this, str, Toast.LENGTH_SHORT).show(); // 显示消息提示框
 }
}