android系统自带的日期、时间对话框的用法

package com.test;

import java.util.Calendar;

import android.app.Activity;
import android.app.DatePickerDialog;
import android.app.Dialog;
import android.app.TimePickerDialog;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.TextView;
import android.widget.TimePicker;

public class MainActivity extends Activity {
private Button button;
TextView textView;
StringBuffer stringBuilder;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button=(Button)findViewById(R.id.button1);
textView=(TextView)findViewById(R.id.textView1);
button.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Calendar c=Calendar.getInstance();

Dialog dateDialog=new DatePickerDialog(MainActivity.this, new DatePickerDialog.OnDateSetListener() {

@Override
public void onDateSet(DatePicker arg0, int arg1, int arg2, int arg3) {
// TODO Auto-generated method stub
stringBuilder=new StringBuffer("");
stringBuilder.append(arg1+"-"+(arg2+1)+"-"+arg3+" ");
Calendar time=Calendar.getInstance();
Dialog timeDialog=new TimePickerDialog(MainActivity.this, new TimePickerDialog.OnTimeSetListener() {

@Override
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
// TODO Auto-generated method stub
stringBuilder.append(hourOfDay+":"+minute);
textView.setText("您设置的时间为:"+stringBuilder);
}
}, time.get(Calendar.HOUR_OF_DAY), time.get(Calendar.MINUTE), true);
timeDialog.setTitle("请选择时间");
timeDialog.show();
}

}, c.get(Calendar.YEAR), c.get(Calendar.MONTH), c.get(Calendar.DAY_OF_MONTH));
dateDialog.setTitle("请选择日期");
dateDialog.show();
}
});
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}

}

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >

<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"

android:text="单击弹出日历对话框" />

<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/button1"
android:layout_alignLeft="@+id/button1"
android:layout_marginBottom="84dp"
android:layout_marginLeft="44dp"
android:text="TextView" />

</RelativeLayout>