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：

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