30-datePickerDialog和TimePickerDialog对话框设置日期和时间

package com.example.datepikerdialogtext;

import java.util.Calendar;

import android.annotation.SuppressLint;
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 MainActivity extends Activity {
private Calendar calendar;
private TextView textView;
private String string1;
private String string2;

@SuppressLint("ParserError")
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

// 获取控件
Button button1 = (Button) findViewById(R.id.button1);
Button button2 = (Button) findViewById(R.id.button2);
textView = (TextView) findViewById(R.id.textView1);

// 设置按钮监听

button1.setOnClickListener(new View.OnClickListener() {

public void onClick(View v) {

// 创建一个Calender对象
calendar = Calendar.getInstance();

// 设置DatePikerDialog
new DatePickerDialog(MainActivity.this,
new DatePickerDialog.OnDateSetListener() {

public void onDateSet(DatePicker view, int year,
int monthOfYear, int dayOfMonth) {
string1 = "您设置的日期为：" + year + "年" + monthOfYear
+ "月" + dayOfMonth + "日";
// 设置文本的内容
textView.setText(string1);
}
}, calendar.get(calendar.YEAR), calendar
.get(calendar.DAY_OF_MONTH + 1), calendar
.get(calendar.DAY_OF_MONTH)).show();
}
});

button2.setOnClickListener(new View.OnClickListener() {

public void onClick(View v) {
// 创建一个Calender对象
calendar = Calendar.getInstance();

// 设置TimePickerDialog
new TimePickerDialog(MainActivity.this,
new TimePickerDialog.OnTimeSetListener() {

public void onTimeSet(TimePicker view,
int hourOfDay, int minute) {
// 设置文本的内容
string2 = string1 + "  您设置的时间为：" + hourOfDay
+ ":" + minute;
textView.setText(string2);
}
}, calendar.get(Calendar.HOUR), calendar
.get(calendar.MINUTE), true).show();
}
});
}
}

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >

<TextView
android:id="@+id/textView1"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />

<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >

<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="设置日期" />

<Button
android:id="@+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="设置时间" />
</LinearLayout>

</LinearLayout>