android中DatePicker和TimePicker的使用方法详解

<?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>

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"); }}