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 *
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：