android中DatePicker和TimePicker的使用方法详解

本文以实例讲述了android中datepicker和timepicker的使用方法，具体步骤如下：
下面是实现具体功能的代码，其中main.xml代码为：

<?xml version="1.0" encoding="utf-8"?>
<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="wrap_content"
    android:layout_height="wrap_content"
    android:text="请选择购买本书的具体时间" />

  <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:id="@+id/show"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:cursorvisible="false"
    android:editable="false" />

</linearlayout>

java代码为：

public class androiddemo5activity extends activity {

 // 记录当前的时间
 private int year;
 private int month;
 private int day;
 private int hour;
 private int minute;

 @override
 protected void oncreate(bundle savedinstancestate) {
 // todo auto-generated method stub
 super.oncreate(savedinstancestate);
 setcontentview(r.layout.main);
 datepicker date = (datepicker) findviewbyid(r.id.datepicker);
 timepicker time = (timepicker) findviewbyid(r.id.timepicker);
 // 或许当前的年月日，小时，分钟
 calendar ca = calendar.getinstance();
 year = ca.get(calendar.year);
 month = ca.get(calendar.month);
 day = ca.get(calendar.day_of_month);
 hour = ca.get(calendar.hour);
 minute = ca.get(calendar.minute);

 // 初始化datepicker
 date.init(year, month, day, new ondatechangedlistener() {

  @override
  public void ondatechanged(datepicker arg0, int year, int month,
   int day) {
  androiddemo5activity.this.year = year;
  androiddemo5activity.this.month = month;
  androiddemo5activity.this.day = day;
  // 显示当前时间和日期
  showdate(year, month, day, hour, minute);
  }

 });

 // 为timerpicker指定事件监听器
 time.setontimechangedlistener(new ontimechangedlistener() {

  @override
  public void ontimechanged(timepicker arg0, int hour, int minute) {
  androiddemo5activity.this.hour = hour;
  androiddemo5activity.this.minute = minute;
  }
 });
 }

 protected void showdate(int year2, int month2, int day2, int hour2,
  int minute2) {
 edittext text = (edittext) findviewbyid(r.id.show);
 text.settext("您的购买时间为：" + year2 + "年" + month2 + "月" + day2 + "日"
  + hour2 + "时" + minute2 + "分");

 }
}

运行效果如下图所示：