从零开始学android<日期选择器：DatePicker的使用.十二.>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >
  <DatePicker
      android:id="@+id/date2"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_alignRight="@+ide/date1"
      android:layout_below="@+ide/date1"
      android:layout_marginTop="30dp" />
</RelativeLayout>

package com.example.datepicker11;

import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.DatePicker;

public class MainActivity extends Activity {
private  DatePicker date=null;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        super. setContentView(R.layout.activity_main);
    this.date=(DatePicker)super.findViewById(R.id.date2);
    this.date.updateDate(1992, 03, 18);
    }   
}