DateAndTime.java

package com.example.datepickerandtimepicker;import java.util.Calendar;import android.app.Activity;import android.app.DatePickerDialog;import android.app.TimePickerDialog;import android.os.Bundle;import android.view.View;import android.widget.Button;import android.widget.DatePicker;import android.widget.TextView;import android.widget.TimePicker;public class DateAndTime extends Activity{ TextView m_TextView; //声明DatePicker对象 DatePicker m_DatePicker; //声明TimePicker对象 TimePicker m_TimePicker; Button   m_dpButton; Button   m_tpButton; //java中的日历类 Calendar  c; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);  setContentView(R.layout.main);    c=Calendar.getInstance();    m_TextView= (TextView) findViewById(R.id.TextView01);  m_dpButton = (Button)findViewById(R.id.button1);  m_tpButton = (Button)findViewById(R.id.button2);    //获取DatePicker对象  m_DatePicker = (DatePicker) findViewById(R.id.DatePicker01);  //将日历初始化为当前系统时间，并设置其事件监听  m_DatePicker.init(c.get(Calendar.YEAR), c.get(Calendar.MONTH), c.get(Calendar.DAY_OF_MONTH), new DatePicker.OnDateChangedListener() {   @Override   public void onDateChanged(DatePicker view, int year, int monthOfYear, int dayOfMonth)   {    //当日期更改时，在这里处理    //c.set(year, monthOfYear, dayOfMonth);   }  });  //获取TimePicker对象  m_TimePicker = (TimePicker) findViewById(R.id.TimePicker01);  //设置为24小时制显示  m_TimePicker.setIs24HourView(true);  //监听时间改变  m_TimePicker.setOnTimeChangedListener(new TimePicker.OnTimeChangedListener() {   @Override   public void onTimeChanged(TimePicker view, int hourOfDay, int minute)   {    //时间改变时处理    //c.set( hourOfDay, minute);   }  });      m_dpButton.setOnClickListener(new Button.OnClickListener(){   public void onClick(View v)   {    new DatePickerDialog(DateAndTime.this,     new DatePickerDialog.OnDateSetListener()     {      public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth)      {       //设置日历      }     },c.get(Calendar.YEAR), c.get(Calendar.MONTH), c.get(Calendar.DAY_OF_MONTH)).show();   }  });    m_tpButton.setOnClickListener(new Button.OnClickListener() {   public void onClick(View v)   {    new TimePickerDialog(DateAndTime.this,     new TimePickerDialog.OnTimeSetListener()     {      public void onTimeSet(TimePicker view, int hourOfDay,int minute)      {       //设置时间      }     },c.get(Calendar.HOUR_OF_DAY), c.get(Calendar.MINUTE), true).show();   }  }); }}